Replacing Fused Disconnects with GV2 Breakers

By Abdullah Zahid
20 min read
Schneider Electric TeSys GV2 motor circuit breaker mounted on DIN rail replacing fused disconnect in industrial control panel

Replacing Fused Disconnects with TeSys GV2 Motor Circuit Breakers: Practical Migration Guide

Controls engineers and panel builders evaluating a switch from fused disconnect-based motor protection to Schneider Electric TeSys GV2 motor circuit breakers are asking the right question at the right time. Whether the trigger is nuisance fuse blowing, difficulty sourcing replacement fuses, a panel expansion, or a corporate push to standardize on TeSys motor starters, the migration is technically viable for a broad range of applications — but only when treated as an engineering exercise, not a like-for-like hardware swap. TeSys GV2 thermal-magnetic motor circuit breakers cover motor currents approximately up to 32 A depending on catalog number, integrate overload and short-circuit protection in a single device, and pair with TeSys contactors to form compact, modular motor starter assemblies that can significantly reduce component count compared with traditional fused disconnect, overload relay, and contactor line-ups.

If you have already identified the TeSys GV2 references you need, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Make This Migration — and Who Should Wait

This guide is written for engineers and panel builders who are close to specifying a retrofit project. The TeSys GV2 solution is the right direction if your situation matches the criteria below. If it does not, the honest answer is to retain or redesign your fused solution for now.

  • Motor full-load amperage falls within the GV2 current range for the catalog number you are considering (approximately up to 32 A depending on reference)
  • Available fault current at each panel location has been calculated or measured and falls within the breaking capacity of the specific GV2 reference selected
  • Local code and listing requirements (UL/CSA categories for manual motor controllers and motor circuit breakers) have been confirmed for the intended architecture
  • Panel SCCR has been or will be re-validated using manufacturer coordination tables for the GV2 plus contactor combination chosen
  • Physical space, DIN rail mounting, and door handle or enclosure options have been confirmed for the existing enclosure or MCC bucket
  • Project resources exist to update wiring diagrams, arc flash labels, SCCR documentation, and operator training

If available fault current is high and existing current-limiting fuses (Class J, R, or L) are providing critical SCCR margin that a GV2 cannot match at that location, retain the fused solution or design an upstream current-limiting device into the new architecture. Do not proceed on ampere rating alone.

On this page:

How Fused Disconnects Work in Motor Circuits Today

A traditional fused motor branch circuit combines a fused disconnect switch (or fused switch-disconnector), a contactor, and a separate bimetal overload relay. The fused disconnect provides short-circuit protection through current-limiting fuses, mechanical isolation, and a padlockable handle for lockout/tagout. The overload relay, mounted on or near the contactor, handles thermal overload protection. This three-component arrangement has been standard in North American MCCs and control panels for decades and remains widely installed today.

The arrangement works well, but it comes with practical maintenance burdens. Fuses must be stocked in the correct voltage rating, class, and ampere rating for each application — and when a fuse blows, the cause must be diagnosed before replacement. In applications with high motor inrush or variable duty, nuisance fuse blowing can be a recurring problem. Older fused disconnect frames and specific fuse types are increasingly difficult to source as product lines age or are discontinued. Each circuit also occupies measurable panel space: the fused switch, fuse blocks, overload relay, and contactor are separate physical devices that must be mounted, wired, and maintained individually.

When the fused disconnect also serves as the sole branch-circuit protective device at high available fault levels, its current-limiting fuses are doing important work that a standard thermal-magnetic breaker may not replicate on a like-for-like basis. That distinction is central to any migration assessment.

TeSys GV2 Motor Circuit Breaker Fundamentals

The TeSys GV2 family from Schneider Electric is a range of thermal-magnetic motor circuit breakers (also described as manual motor starters or manual motor controllers depending on configuration and listing context). The family includes variants such as the GV2-ME, GV2-L, and GV2-P types, each covering specific current ranges and application contexts. In all cases, the GV2 integrates both overload protection (thermal element, adjustable to motor FLA) and short-circuit protection (magnetic element) in a single compact device.

The adjustable thermal trip range is a practical advantage over fuses: the engineer sets the dial to the motor's actual full-load current using Schneider's selection tables, providing protection that tracks the motor's actual rating rather than the nearest available fuse size. For motors up to approximately 32 A (depending on catalog number and application), a GV2 can replace the combination of overload relay and fused disconnect in a single device, then be paired with a TeSys contactor to form a complete motor starter combination.

TeSys GV2 devices accept a range of accessories including auxiliary contacts (for remote trip indication and interlock wiring), shunt releases and undervoltage releases (for remote trip and control functions), and rotary door handles and enclosed breaker solutions (for isolation and lockout). These accessories are essential when the GV2 must satisfy the same isolation and lockout requirements previously met by the fused disconnect's handle mechanism.

Fused Disconnect vs TeSys GV2: System-Level Comparison

Aspect Legacy Fused Disconnect TeSys GV2-Based Solution Migration Impact
Short-circuit protection Current-limiting fuses Thermal-magnetic breaker Recalculate SCCR; check available fault current against GV2 breaking capacity
Overload protection Separate bimetal overload relay Integrated thermal element in GV2 Remove overload relay where appropriate; rewire control circuits
Isolation and lockout Integral handle with padlock provision GV2 with front lever or rotary handle / enclosed solution Confirm visible isolation requirements and specify correct handle or enclosure accessory
Reset after fault Fuse replacement required Breaker reset (manual lever) Faster recovery; requires training on proper reset procedure
Coordination with contactor Tested fuse + contactor combinations GV2 + contactor coordination tables Use manufacturer coordination tables for exact GV2 + contactor references
Component count Fuse switch + overload relay + contactor GV2 + contactor (two devices) Reduced components; space savings possible
Enclosure or MCC bucket Sized for fuse bases and switch body May require DIN rail or adapter plates Check mounting kits and physical clearances before committing
Trip indication Fuse blown indicator or visual fuse inspection GV2 auxiliary contact (overload or short-circuit trip) Improved diagnostic detail; update PLC I/O maps and HMI alarms

If you are ready to specify TeSys GV2 references for your migration, check current availability at LeadTime.ca — ships worldwide.

Where the TeSys GV2 Sits in a Typical Motor Control Architecture

In a GV2-based motor starter combination, the TeSys GV2 sits at the branch-circuit level — between the upstream feeder or main breaker and the motor load — taking the place of the fused disconnect and overload relay simultaneously.

  • Upstream feeder or main distribution board provides panel-level fault protection and supplies the branch circuit
  • TeSys GV2 motor circuit breaker mounts on DIN rail at branch-circuit level, providing adjustable overload and magnetic short-circuit protection, plus isolation via front lever or rotary handle accessory
  • TeSys contactor connects directly to the load terminals of the GV2, controlled by the machine's control circuit
  • GV2 auxiliary contact wires into the control circuit or PLC input to signal trip conditions (overload or short circuit) for remote indication or interlock functions
  • Motor load connects to the contactor output — motor FLA must fall within the selected GV2's thermal trip range as confirmed in Schneider's selection tables

Four Realistic Migration Scenarios and Recommended Approaches

Small OEM machine panels with motors in the 3 to 7.5 kW range and limited panel space are where TeSys GV2 migration delivers the clearest benefit. Replacing each fused disconnect and overload relay with a GV2 motor circuit breaker, combined with a TeSys contactor on DIN rail and compact busbars, simplifies wiring, reduces spare-parts stock to a single device type, and improves reset times. For an OEM building multiple identical machines, this also reduces the variation in components that field service technicians must understand.

Plant MCCs with legacy fused combination starters at high available fault levels require more careful analysis. A circuit-by-circuit conversion is appropriate where SCCR and coordination can be maintained using a GV2 reference plus its matched contactor according to Schneider's coordination tables. Where very high fault currents exceed what a specific GV2 reference can interrupt safely, retaining the fused starter or introducing an upstream current-limiting device is the right call. This balanced approach allows modernization without forcing a full MCC replacement or compromising SCCR.

Mixed-load panels where a single fused switch previously fed both motors and control transformers or other loads should be redesigned rather than migrated on a one-for-one basis. The correct approach is to install a separate GV2 for each motor load and a dedicated protective device sized appropriately for the control transformer or other branch. This improves selectivity: a fault on the motor branch no longer disrupts the control circuit, and vice versa. The additional engineering time is offset by improved troubleshooting and a cleaner panel layout.

At high-fault-level utility service locations where the original fused disconnect was selected specifically for its current-limiting properties, evaluate GV2 migration only if manufacturer data confirms that the selected GV2 reference with its upstream device meets or exceeds the SCCR of the original fused design. If it does not, the fused solution or an architecture with upstream current-limiting devices remains the safer and code-compliant choice. Simplification is not a valid reason to compromise fault protection.

Application Typical Deployment
Small OEM machine panel (3–7.5 kW motors) GV2 + TeSys contactor on DIN rail, compact busbars, single spare-part strategy
Plant MCC with legacy fused combination starters Circuit-by-circuit GV2 + contactor conversion where SCCR is satisfied; retain fuses at high fault-level locations
Mixed-load panel (motors + control transformer) Separate GV2 per motor; dedicated branch protection for control transformer
High-fault-level utility service GV2 only where manufacturer SCCR data confirms adequacy; otherwise retain or add upstream current-limiting device
Incremental plant expansion GV2 on all new circuits; staged replacement of legacy fused disconnects during future planned shutdowns

Old-to-New Hardware Mapping: From Fuses to TeSys GV2

Legacy Component Replacement Component Main Change
Fused disconnect switch (motor feeder) TeSys GV2 motor circuit breaker (e.g., GV2-ME variant) Integrated overload and short-circuit trip instead of fuses; breaker-style reset
Fused combination starter (disconnect + fuses + overload + contactor) GV2 + TeSys contactor + handle or enclosure Separate breaker and contactor, modular assembly; no primary fuses
Overload relay (bimetal) + non-fused disconnect GV2 sized to motor FLA Overload integrated into GV2; improved adjustability and fewer components
Door-mounted rotary handle on fused switch GV2 rotary handle or door operator Different mechanical linkage; verify door-cutout and shaft compatibility
Fuse blown indication links GV2 auxiliary contact indicating trip Electrical indication changes from fuse status to breaker trip status; update PLC I/O accordingly

System Audit Before You Start: What Data You Need

A structured audit prevents the most expensive migration mistakes. Before selecting any GV2 reference, collect the following information for every circuit being converted.

  • Motor FLA, rated voltage, starting method (direct-on-line, star-delta, soft starter), and number of starts per hour — these determine which GV2 current range and thermal trip setting is appropriate per Schneider's selection tables
  • Available fault current at each panel location, measured or calculated from the latest short-circuit study — this determines whether a specific GV2 reference's breaking capacity is adequate and whether panel SCCR requirements can be met
  • Existing SCCR documentation for each circuit, and whether the current protection scheme relies on the current-limiting properties of specific fuse classes
  • Physical inventory of the existing fused disconnect: frame size, mounting method, door handle or rotary operator configuration, and enclosure dimensions — to confirm what GV2 mounting hardware, handle kits, or enclosure modifications will be required
  • Identification of any circuits serving special applications such as fire pumps, safety-rated circuits, or utility metering points that carry additional code or authority-having-jurisdiction requirements beyond standard motor protection

Phased Migration Plan: From Audit to Handover

A sound migration follows eight distinct phases. Skipping any of them is where projects run into SCCR shortfalls, wiring errors, or commissioning failures.

  • Audit and design: Inventory all fused disconnects, collect motor and fault-current data, select TeSys GV2 references using manufacturer selection guides, validate coordination using Schneider's GV2 + contactor coordination tables, and produce updated schematics, bills of materials, and physical layout drawings
  • Procurement and pilot: Source GV2 breakers, contactors, auxiliaries, handle kits, and mounting hardware with confirmed availability; implement on a limited number of circuits first to validate fit, wiring process, and commissioning steps before full rollout
  • Installation: Schedule downtime, apply lockout/tagout, verify absence of voltage, remove fused disconnects, install GV2 devices per installation instructions, and torque-check all connections
  • Software conversion: Update PLC programs and HMI displays to reflect GV2 auxiliary contacts and trip signals in place of fuse-status inputs; update alarm descriptions to distinguish overload trips from short-circuit trips
  • Validation and handover: Perform functional start/stop and trip-indication tests, confirm updated SCCR calculations, update arc flash labels where SCCR has changed, train maintenance and operations staff on GV2 reset procedure, and deliver updated drawings and parts lists

Wiring and Installation Overview

Wiring a TeSys GV2 in place of a fused disconnect involves power and control circuit changes that must be verified against the installation instructions for the specific GV2 reference chosen. The following points cover the key requirements engineers must confirm before installation begins.

  • Line and load connections move from fuse bases and the switch body to the GV2 input and output terminals — verify conductor size, number of conductors per terminal, and required tightening torque per the selected GV2's installation sheet before reusing existing wiring
  • Control wiring for trip indication and interlocks must be updated: GV2 auxiliary contacts are wired differently from fuse-blown indication links, and their terminal locations and signal types differ — update control schematics and PLC I/O maps before installation
  • When using a GV2 + TeSys contactor assembly with comb-type busbars or direct mounting kits, confirm busbar compatibility with the specific GV2 and contactor references being used
  • In existing enclosures or MCC buckets, verify cable entry clearances, bending radii, and conductor segregation requirements — the GV2's physical footprint and terminal orientation may differ from the fused switch it replaces
  • Where a rotary handle or door operator is required for isolation and lockout, verify door-cutout dimensions and handle-shaft compatibility with the specific GV2 reference before committing to the enclosure modification

TeSys GV2 Compatible Accessories and System Expansion

TeSys GV2 motor circuit breakers accept a range of Schneider Electric accessories that allow the device to satisfy isolation, remote indication, and control requirements. Specifying the correct accessories is essential for a compliant migration — the base GV2 device alone does not replicate all functions of a fused disconnect switch without them.

  • Auxiliary contacts — add electrical trip and open/closed status indication for PLC inputs, remote annunciation panels, or interlock wiring in control circuits
  • Shunt releases — allow remote electrical trip of the GV2 from a safety relay, e-stop circuit, or supervisory control system
  • Undervoltage releases — provide automatic trip on loss of supply voltage, relevant in applications where automatic disconnection on power failure is required
  • Rotary door handles and door operators — provide visible isolation and lockout-tagout capability equivalent to a fused disconnect handle; must be specified by GV2 reference and enclosure type
  • Enclosed breaker solutions — factory-assembled GV2 in an IP-rated enclosure with handle, suitable for standalone mounting or wall mounting where an open DIN rail assembly is not appropriate

Expert Verdict: When to Migrate and When to Wait

TeSys GV2 motor circuit breakers are a well-suited replacement for fused disconnect-based motor protection when the application falls within the device family's operating envelope. For motors up to approximately 32 A FLA (depending on catalog number), in panels where available fault current is within the specific GV2 reference's breaking capacity, and where SCCR can be validated using Schneider's GV2 plus contactor coordination tables, the migration typically delivers a cleaner, more maintainable motor starter with fewer components, faster fault recovery, and improved diagnostic granularity from auxiliary contact trip signals. The ideal candidate for this migration is an OEM panel builder standardizing on TeSys motor starters, a maintenance team dealing with recurring nuisance fuse events or sourcing difficulty, or a plant engineer redesigning a section of MCC during a planned shutdown.

The migration has real limits that must be respected. Where available fault current is high and existing current-limiting fuses (Class J, R, or L) are providing SCCR margin that the selected GV2 reference cannot match, the fused solution remains the technically correct choice — or the architecture must include an upstream current-limiting device that restores the required SCCR. For motors exceeding the GV2 current range, or for systems where tested and documented fuse-based coordination would be costly to requalify, delaying or phasing the migration is the more responsible path. The worst migration outcome in this category is selecting a GV2 on ampere rating alone without confirming short-circuit, coordination, and code requirements — that shortcut creates an unsafe installation and potential code non-compliance that is far more expensive to correct after the fact.

From a procurement standpoint, TeSys GV2 is an active product family with broad availability, but phased migrations spanning multiple shutdowns require confirming that specific GV2 references and their accessories can be sourced consistently. Mixed architectures during transition — some circuits on GV2, others still fused — need to be documented carefully so that maintenance staff understand which protection scheme applies to each circuit. LeadTime.ca can help engineers and panel builders identify the correct TeSys GV2 references and accessories for a given project, confirm stock and lead times, and support phased procurement across multiple project phases. Check current availability for your GV2 references at LeadTime.ca — ships worldwide.

For volume pricing or to confirm lead time before committing to a migration build, contact the LeadTime.ca team directly — we ship worldwide.

Common Migration Mistakes and How to Avoid Them

The migration community and technical forums consistently surface the same five errors. Understanding them before you start is cheaper than correcting them after installation.

Ignoring available fault current and SCCR is the most consequential mistake in this migration category. Selecting a GV2 based only on motor FLA without checking the breaking capacity of the specific reference against actual available fault current at that panel location can result in an unsafe installation and code non-compliance. Always perform or update a short-circuit study and use Schneider's SCCR and coordination tables for the exact GV2 reference and contactor combination being used.

Treating any GV2 as a drop-in replacement for a fused disconnect misunderstands the device's listing category. A GV2 may function as a manual motor controller, motor circuit breaker, or disconnector depending on configuration, accessories, and the code context in which it is applied. Verify intended function, specify the correct rotary handle or enclosed solution for isolation requirements, and confirm with manufacturer documentation and the authority having jurisdiction before proceeding.

Reusing existing conductors without checking terminal ratings is a common field shortcut that creates loose terminations, overheating, or connection damage. GV2 terminals have specific conductor size ranges, conductor-per-terminal limits, and tightening torque requirements that must be verified in the installation instructions for each reference. Adjust conductor sizes or use appropriate distribution blocks where the existing wiring does not match.

Overlooking coordination with upstream devices can result in nuisance tripping or loss of selectivity, causing wider outages than the fault itself would warrant. Time-current coordination between the GV2 and upstream breakers or fused feeders must be reviewed using coordination curves, and upstream protection settings adjusted where feasible.

Failing to update drawings, labels, and training is a safety risk that compounds over time. Changing hardware in the field without updating schematics, panel nameplates, arc flash labels, and operator training creates confusion during troubleshooting and increases safety risk for maintenance personnel who encounter an unfamiliar device with outdated documentation. Documentation updates and training must be explicit, signed-off tasks in the migration project plan.

What Engineers Need to Know Before Specifying This Migration

Community discussions across automation forums and panel-builder communities show a generally positive view of TeSys GV2 for small to medium motor applications, but recurring themes in those discussions reveal where the migration goes wrong. The most consistent frustration engineers report is discovering after installation that available fault current at the panel exceeds the specific GV2 reference's short-circuit breaking capacity — a problem that forces redesign, addition of upstream current-limiting devices, or reverting to a fused solution. This error is almost always traceable to a selection process that stopped at motor FLA without proceeding to a short-circuit study.

A second recurring issue is confusion about whether a GV2 can serve as the sole branch-circuit protective device under UL and CSA requirements, particularly at higher fault levels or in specific system architectures. The answer depends on the exact GV2 catalog number, the application context, the upstream device, and the authority having jurisdiction — it is not a universal yes or no. Engineers who assume it is a universal yes, and skip the step of confirming with Schneider's documentation and the AHJ, create compliance exposure that surfaces during inspections or incident investigations.

Nuisance tripping after installation is another reported frustration, though the community consensus is that the cause is almost always an incorrectly set or mis-sized GV2 rather than a weakness in the device itself. The thermal trip dial must be set to the motor's actual FLA using Schneider's selection tables — setting it to the nearest round number or the fuse size that was previously installed is not the correct approach. When the GV2 is selected and set correctly for the specific motor and application, the community experience is consistently positive: faster reset, better diagnostic information from auxiliary contacts, and a cleaner panel layout with fewer components to maintain.

Migration Readiness Checklist

Before finalizing your GV2 selection and ordering hardware, confirm every item on this checklist. A single unchecked item is enough to require a redesign or create a compliance problem.

  1. Short-circuit study updated with available fault current at each location.
  2. Motor FLA, starting method and duty verified against GV2 selection tables.
  3. Local code and listing rules checked (UL/CSA categories, use with upstream breaker or fuses).
  4. Panel SCCR re-validated for GV2 + contactor combinations.
  5. Physical space and mounting options confirmed (DIN rail, backplate, enclosures, rotary handles).
  6. Wiring diagrams updated to reflect GV2 terminals, auxiliaries and accessories.
  7. Lockout/tagout and isolation requirements maintained (front handle / external handle solution defined).

If you are ready to source TeSys GV2 breakers and accessories for your project, check current stock and pricing at LeadTime.ca — or contact the team to confirm availability for your specific references before committing to a build schedule.

Frequently Asked Questions

Can a TeSys GV2 motor circuit breaker directly replace any fused disconnect on a like-for-like basis?

No. A TeSys GV2 can replace the overload and short-circuit protection functions of a fused disconnect, but the replacement must be validated for each circuit individually. The specific GV2 reference must be confirmed against motor FLA using Schneider's selection tables, its breaking capacity must be checked against available fault current, panel SCCR must be re-validated using coordination tables, and isolation and lockout requirements must be met through the correct handle or enclosure accessory. Treating it as a like-for-like swap without these steps is the most common source of compliance and safety problems in this migration.

How do I choose the correct TeSys GV2 reference for my motor?

Selection starts with the motor's full-load amperage, rated voltage, starting method, and duty cycle. Schneider Electric's TeSys GV2 selection tables map these parameters to specific catalog numbers with appropriate thermal trip ranges. The GV2 reference must also be evaluated for breaking capacity against available fault current at the panel, and the GV2 plus contactor combination must be checked against Schneider's coordination tables for the intended Type 1 or Type 2 coordination result.

Does a TeSys GV2 provide sufficient short-circuit protection by itself, or does it require upstream fuses?

This depends on the specific GV2 catalog number, the available fault current at the panel, and the applicable code requirements. For some applications and fault levels, a GV2 combined with an appropriate upstream circuit breaker provides adequate SCCR as documented in Schneider's coordination tables. At higher fault levels, upstream current-limiting fuses may be required to achieve the necessary SCCR. Always verify against manufacturer data and confirm with the authority having jurisdiction for the specific installation.

How does panel SCCR change when I replace fuses with a TeSys GV2?

Replacing current-limiting fuses with a thermal-magnetic motor circuit breaker changes the short-circuit let-through energy and the panel's available SCCR. The new SCCR must be calculated using Schneider's published coordination data for the GV2 reference, contactor, and upstream device combination. If the calculated SCCR is lower than the available fault current, the design must be modified — typically by selecting a different GV2 reference with higher breaking capacity, adding upstream current-limiting protection, or both. Arc flash labels must also be updated to reflect any change in incident energy.

Can a TeSys GV2 act as both the disconnect and motor protection device?

A TeSys GV2 equipped with the appropriate rotary handle, door operator, or enclosed breaker accessory can provide both motor protection and a visible isolation point suitable for lockout/tagout. However, whether this satisfies the disconnecting means requirement for a given installation depends on the specific GV2 variant, its listing category under UL/CSA, the system architecture, and local code interpretation by the authority having jurisdiction. Always confirm with Schneider's documentation and the AHJ before specifying the GV2 as the sole disconnect.

What is the correct way to handle nuisance tripping after installing a TeSys GV2?

Nuisance tripping after migration is almost always caused by an incorrectly set or mis-sized GV2, not a fault with the device. Verify that the thermal trip dial is set to the motor's actual full-load amperage using Schneider's selection tables — not to the previous fuse size or a rounded estimate. Also verify that the GV2 catalog number is appropriate for the motor's starting method and duty cycle. If the correct setting still results in tripping, investigate the motor's actual operating current, load conditions, and starting characteristics before adjusting the device.

Why Order TeSys GV2 from LeadTime.ca

  • LeadTime.ca stocks and sources TeSys GV2 motor circuit breakers, contactors, and accessories, and can confirm availability for specific references before you commit to a build schedule
  • Global shipping — LeadTime.ca serves engineers and panel builders worldwide, not limited to any single region
  • Technical sourcing support for phased migrations: confirm which GV2 references, handle kits, auxiliaries, and mounting hardware are required for your specific project, and coordinate procurement across multiple phases
  • Volume pricing available — contact the team for projects involving multiple circuits or MCC-wide conversions
  • Hard-to-find accessories and mounting kits for GV2 installations sourced on request

At-a-Glance Migration Summary

  • TeSys GV2 thermal-magnetic motor circuit breakers integrate overload and short-circuit protection in a single device, replacing the combination of fused disconnect and separate overload relay
  • Current coverage extends approximately up to 32 A depending on catalog number — motor FLA must be verified against Schneider's selection tables for each application
  • Breaking capacity and panel SCCR must be validated against available fault current using manufacturer coordination tables for the specific GV2 reference and contactor combination — ampere rating alone is not a sufficient selection criterion
  • GV2 variants include GV2-ME, GV2-L, and GV2-P types; accessories include auxiliary contacts, shunt releases, undervoltage releases, rotary door handles, and enclosed breaker solutions
  • Migration requires updating power wiring, control wiring, PLC I/O maps, HMI alarms, arc flash labels, panel nameplates, and SCCR documentation — hardware change alone is not a complete migration
  • Retain fused solutions or add upstream current-limiting devices where available fault current exceeds the selected GV2 reference's breaking capacity
  • A seven-point readiness checklist covers fault current, FLA verification, code compliance, SCCR, physical mounting, wiring diagrams, and lockout/tagout before any GV2 is ordered or installed
  • LeadTime.ca can assist with TeSys GV2 reference identification, accessory sourcing, and availability confirmation for phased retrofit projects — ships worldwide

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