Schneider LV510307 100A MCCB — Is This the Right Breaker for You?

By Abdullah Zahid
14 min read
Schneider LV510307 EasyPact CVS100B 100A 25kA 3-pole fixed thermal-magnetic MCCB for 415VAC switchboard distribution panels

Schneider LV510307 EasyPact CVS100B, 25kA at 415VAC, 100A, TM-D Trip Unit, 3P3d — Specs, Price, and Comparison Guide

If you are an electrical engineer or panel builder confirming a 100A distribution breaker for a 3-phase 415VAC system, the Schneider LV510307 is likely already on your shortlist. This is the EasyPact CVS100B in its fixed thermal-magnetic configuration — 100A rated, 25kA breaking capacity at 415VAC, three-pole fixed (3P3d), with a factory-set TM-D trip unit that requires no calibration and no adjustment after installation. The decision comes down to three verifications: is your system voltage 415VAC, is your prospective fault current at or below 25kA, and do you need a fixed or adjustable trip? If all three confirm, this is your breaker.

If you have already confirmed this is the right part, check current pricing and availability for the Schneider LV510307 at LeadTime.ca — we ship worldwide.

Who Should Buy the Schneider LV510307 — and Who Should Not

The LV510307 is the right choice for buyers who can confirm all of the following qualifying criteria:

  • System voltage is 415VAC 3-phase, 50/60Hz — this breaker is not rated for 480VAC without a transformer in the circuit
  • Prospective short-circuit fault current at the installation point does not exceed 25kA — verified by a site fault level study, not assumed
  • Load is stable and predictable at 100A — the TM-D trip unit is factory-set with fixed thermal and magnetic curves; no field adjustment is possible
  • Three-pole fixed configuration is required — LV510307 is 3P3d only; no 2-pole variant exists for this model
  • Panel-mount switchboard installation — this is not a DIN-rail modular device; allocate 11.5 cm width in your switchboard layout
  • IEC-compliant, Class II insulation switchboard compatibility is a project requirement

If your application requires adjustable thermal trip thresholds, electronic monitoring, or a 480VAC rating, this is not the correct model. The CVS100B with TM-A trip unit covers adjustable thermal-magnetic scenarios; the CVS100B with TM-E electronic trip unit handles remote monitoring and data logging requirements.

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Where the LV510307 Sits in Your Distribution System

The Schneider LV510307 serves as the primary overcurrent protection device on outgoing distribution feeders or sub-distribution circuits within 3-phase 415VAC switchboards. It provides two distinct protection mechanisms in a single device: thermal overload protection that operates on sustained overcurrent (set at 0.63–1.0 times rated current by the factory) and instantaneous magnetic trip protection that responds to short-circuit events at 5–10 times rated current. There is no integrated isolation function and no emergency disconnect capability — the LV510307 is a protection device, not an isolator.

The thermal-magnetic TM-D design means the trip curves are fixed at manufacture. For stable commercial loads, this is an advantage: no drift, no recalibration, and no risk of a commissioning technician inadvertently misadjusting the protection setting. For variable loads with significant inrush or soft-start requirements, this same characteristic becomes a constraint that warrants a different trip unit specification.

Typical System Architecture for the CVS100B

The LV510307 typically occupies the outgoing feeder position in a switchboard, sitting downstream of a main incomer and upstream of load-side sub-distribution or final circuits. A typical deployment chain looks like this:

  • Utility supply or building transformer secondary → main incomer breaker (upstream protection, higher amperage rating)
  • Main switchboard busbar (3-phase 415VAC) → LV510307 installed on outgoing feeder circuit
  • LV510307 output → sub-distribution board, tenant panel, or equipment load rated at 100A
  • Downstream from LV510307 → final circuit breakers or load protection devices coordinated with the TM-D trip curves
  • Adjacent positions in the switchboard → other EasyPact CVS variants (CVS63B, CVS160B) for different amperage feeders, enabling standardized panel design

Typical Applications and Deployment Scenarios

The LV510307 is most commonly specified for commercial building feeder protection — office towers, retail complexes, and multi-tenant facilities where 3-phase 415VAC distribution feeds tenant sub-panels or departmental loads at the 100A class. The fixed thermal-magnetic design suits these environments because loads are predictable and maintenance access is infrequent.

Light industrial workshops and small manufacturing facilities use the LV510307 for machinery branch protection where the connected equipment draws stable current and does not require trip threshold modification between production runs. Hospitality properties — hotels and multi-unit residential buildings — similarly benefit from the low-maintenance profile: once commissioned, the breaker operates without scheduled recalibration.

Replacement scenarios represent a significant portion of LV510307 orders. Facilities with existing EasyPact CVS switchboards often source the LV510307 as a direct like-for-like swap when an aging 100A breaker approaches end-of-life. The standardized CVS mounting format simplifies the replacement without requiring panel modification, provided the same 415VAC system voltage and 25kA fault level remain applicable.

Compliance upgrade projects — where older MCCBs are being replaced with IEC-certified equipment for regulatory review or insurance requirements — also drive LV510307 demand. Its Class II insulation switchboard approval and international standards compliance provide the documentation trail that compliance audits require.

Application Typical Deployment
Commercial building feeder protection Outgoing circuit breaker in main 415VAC switchboard feeding tenant or departmental sub-panels
Sub-distribution panel protection Incomer protection for 100A sub-boards serving tenant loads or equipment groups
Direct breaker replacement Like-for-like swap in existing EasyPact CVS switchboards; same 100A, 415VAC, 3-pole configuration
Light industrial branch circuit Fixed-load machinery protection where stable 100A draw eliminates need for adjustable trip
Compliance upgrade Replacing non-certified MCCB with IEC-compliant, Class II insulation-approved device for audit documentation
Multi-feeder panel standardization One of several EasyPact CVS breakers (CVS63B, CVS100B, CVS160B) deployed across a facility for spare-parts standardization

Electrical and Mechanical Specifications

Parameter Value Notes
Current Rating 100 A Fixed; non-adjustable — order a different model if 63A, 160A, or 250A is required
Voltage Rating 415 VAC, 3-phase 50/60 Hz; NOT compatible with 480VAC without transformer — verify before ordering
Breaking Capacity 25 kA at 415VAC Confirm site fault level does not exceed 25kA; upgrade to CVS160 or CVS250 if it does
Number of Poles 3 poles, fixed (3P3d) No 2-pole variant available for this specific model
Trip Unit Type Thermal-Magnetic (TM-D) Fixed curves; factory-set; non-adjustable in the field
Thermal Trip Range 0.63–1.0 × rated current Factory-set; no field adjustment available
Magnetic Trip Threshold 5–10 × rated current Instantaneous; factory-set; no external adjustment
Mounting Panel-mount fixed Switchboard-mounted; not DIN-rail or modular format
Width 11.5 cm Verify clearance with adjacent devices in switchboard before specifying
Weight 2.03 kg Shipping weight may vary with packaging and accessories

Full technical specifications are available on the product page at LeadTime.ca.

LV510307 vs. Related EasyPact CVS Models — Which One Do You Actually Need?

The EasyPact CVS range spans from 63A to 250A and beyond, with multiple trip unit options at each amperage. Selecting the wrong variant is the most common ordering error — particularly the confusion between fixed TM-D, adjustable TM-A, and electronic TM-E trip units at the same 100A rating.

Model Current Rating Breaking Capacity Configuration Trip Unit Best For Typical Lead Time
CVS63B 63 A 25 kA 3P3d TM-D (fixed) Smaller feeder loads; branch circuits 2–6 weeks — verify with distributor
LV510307 (CVS100B) 100 A 25 kA 3P3d TM-D (fixed) Standard small/medium building distribution 2–8 weeks — verify with distributor
CVS160B 160 A 25 kA 3P3d TM-D (fixed) Larger single loads or sub-distribution 2–8 weeks — verify with distributor
CVS250B 250 A 50 kA 3P3d TM-D (fixed) Main feeder or heavy-load distribution 3–10 weeks — verify with distributor
CVS100B (TM-A) 100 A 25 kA 3P3d Thermal-Magnetic Adjustable When thermal adjustment is required after installation 4–12 weeks — verify with distributor
CVS100B (Electronic Trip) 100 A 25 kA 3P3d Electronic (TM-E) Load monitoring, remote trip, predictive maintenance 4–12 weeks — verify with distributor

All lead time figures are market-typical estimates — confirm current stock and availability before committing to a project schedule. If your fault level exceeds 25kA or your load requires a 160A rating, the CVS160B is the correct next step — check current availability and confirm the right variant at LeadTime.ca.

Expert Verdict: When the LV510307 Delivers and When It Doesn't

The Schneider LV510307 earns its place as a go-to distribution breaker for a clearly defined buyer profile: the electrical engineer or facilities manager specifying protection for stable, predictable 100A loads in 3-phase 415VAC commercial buildings, light industrial sites, or hospitality properties. Three proof points anchor this assessment. First, the TM-D trip unit's fixed thermal and magnetic curves eliminate calibration drift and reduce maintenance overhead over the device's service life — a genuine operational advantage in buildings where scheduled electrical maintenance is infrequent. Second, the IEC-compliant, Class II insulation switchboard approval provides the certification documentation that streamlines regulatory review, particularly in jurisdictions with mandatory IEC-certification requirements. Third, the EasyPact CVS range's multi-amperage family — spanning CVS63B through CVS250B — means specifying the LV510307 alongside other CVS variants enables facility-wide standardization on spare parts and technician familiarity.

The LV510307 has real limits, and they are worth naming plainly. The 25kA breaking capacity is appropriate for the majority of commercial building feeder applications, but sites fed from large utility transformers or industrial backbone supplies may carry prospective fault currents above this threshold — an undersized breaker in a high-fault system is a compliance and safety failure, not just an inconvenience. The CVS160 (50kA) or CVS225/400 series addresses higher fault levels. Similarly, the fixed TM-D trip unit is the wrong choice for variable loads, soft-start motor applications, or VFD-driven equipment where inrush characteristics change between operating modes. For those scenarios, the CVS100B with TM-A adjustable trip or TM-E electronic trip unit is the technically correct specification. And for any 480VAC North American panel, the LV510307's 415VAC rating makes it categorically incompatible without a step-down transformer in the circuit.

From a procurement standpoint, the LV510307 is not a shelf-stock item at every distributor. Market-typical lead times run 2–8 weeks depending on regional inventory position and order timing. The product originates from Indian manufacturing, which means North American and international orders are subject to import lead time variability. For emergency panel replacement scenarios, confirming in-stock status with a specialist distributor before committing to a project schedule is not optional — it is the difference between a two-week commissioning and a six-week procurement cycle. A specialist distributor also performs the pre-order technical review — voltage confirmation, fault level check, trip unit type verification — that prevents the wrong-unit order that would reset the clock entirely. Check current pricing and stock status for the LV510307 at LeadTime.ca — we ship worldwide and can confirm availability before you commit.

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

What Engineers Need to Know Before Ordering the LV510307

Community-level discussion specific to the LV510307 is sparse in public forums and distributor Q&A sections. That absence is itself informative: this is not a device that generates controversy or troubleshooting threads when it is correctly specified. Problems arise almost exclusively during the specification and ordering phase — before the breaker ever reaches the panel. Three recurring error patterns appear consistently across similar fixed thermal-magnetic MCCB products in the EasyPact CVS family, and each one is preventable with a structured pre-order review.

The most common error pattern is voltage assumption. The 415VAC and 480VAC distinction matters enormously in North American markets where distribution voltage varies by facility age, utility service type, and building design. Engineers ordering for retrofit projects sometimes inherit verbal site descriptions rather than measured voltage data. The LV510307 is not rated for 480VAC — installing it in a 480VAC panel is a compliance violation, and the trip behavior under fault conditions may not meet regulatory standards. Measuring voltage at the breaker location with a calibrated instrument before ordering is not bureaucratic overhead; it is the single most effective wrong-part prevention step for this product.

The second recurring pattern is trip unit confusion. The EasyPact CVS100B is available in TM-D (fixed), TM-A (adjustable), and TM-E (electronic) configurations. Purchase orders that specify only "CVS100B" or "100A EasyPact" without naming the trip unit type create ambiguity that forces distributor clarification and delays order processing. Engineers who later discover the TM-D is non-adjustable after installation — expecting to dial in the thermal threshold on-site — face an expensive reorder. Stating "FIXED TRIP — TM-D" explicitly in the purchase order eliminates this risk entirely. When community data is limited for a specific model, the value of working with a specialist distributor who asks the right technical questions during the quote stage becomes concrete: LeadTime.ca's technical review process is designed specifically to catch these specification gaps before they become shipped hardware problems.

Wiring and Installation Overview

The following points summarize the key requirements for installing the LV510307. Engineers requiring full wiring diagrams and step-by-step commissioning procedures should refer to the official Schneider Electric installation documentation for the EasyPact CVS range.

  • Confirm system voltage is 415VAC 3-phase 50/60Hz at the installation point using a calibrated multimeter before any mechanical work begins — do not rely on single-line drawing voltage labels without field verification
  • Allocate 11.5 cm panel width for the LV510307 and verify clearance above, below, and to adjacent devices meets the switchboard design requirements and any applicable IEC spacing standards
  • The LV510307 is panel-mount fixed only — not DIN-rail compatible; confirm mounting hardware and hole pattern matches the switchboard before the device ships
  • Perform a mechanical no-load trip test after securing the breaker in the panel and before energizing: verify the trip handle moves freely, is not obstructed by adjacent devices, and the mechanism responds correctly
  • Confirm coordination with upstream protection and load-side devices using trip curve data before commissioning — the TM-D fixed curves cannot be adjusted post-installation; coordination must be verified at the design stage

Wrong-Part Checklist: Eight Checks Before You Order

Run through every item on this checklist before submitting your purchase order. Each item reflects a documented failure mode for this product category — skipping any one of them is the most common source of wrong-unit returns and project delays.

  1. Verify voltage is 415VAC 3-phase 50/60Hz — do NOT order for 480VAC North American systems without transformer
  2. Confirm amperage needed is exactly 100A — LV510307 does NOT have adjustable trip; adjacent models in EasyPact CVS are 63A, 160A, 250A
  3. Check that fixed 3-pole configuration is required — if isolation or 2-pole is needed, order a different variant
  4. Confirm breaking capacity requirement of 25kA is sufficient for your fault current study — if system fault level exceeds 25kA, order higher-capacity breaker (CVS160 or above)
  5. Do NOT assume TM-D trip unit is adjustable — thermal and magnetic thresholds are factory-set; order TM-A or TM-E if adjustment is needed
  6. Verify thermal overload setting (TM-D default is typically 0.63–1.0 × rated current range) matches feeder protection philosophy
  7. Check switchboard mounting hole spacing and clearances — 11.5 cm width must fit allocated panel space with adjacent devices
  8. Confirm external short-circuit protection devices or coordination with upstream protection — LV510307 has no internal electronic management

If any item on this checklist cannot be confirmed before ordering, contact the LeadTime.ca technical team — we can review your application and confirm the correct part number before the order ships.

Frequently Asked Questions

Can I adjust the TM-D thermal trip threshold on the LV510307 after installation if my load changes?

No. The TM-D trip unit in the LV510307 has factory-set thermal and magnetic curves with no field adjustment capability — there are no dials, trim pots, or configurable parameters. The thermal overload range is fixed at 0.63–1.0 times rated current. If your load changes and you need a different thermal threshold, you must order the CVS100B with a TM-A (adjustable thermal-magnetic) or TM-E (electronic) trip unit instead.

Is the CVS100B the same product as the LV510307?

Yes. CVS100B is the device short name within the EasyPact CVS product family; LV510307 is the Schneider Electric catalog number for the CVS100B in the 100A, 25kA, 3P3d, TM-D configuration. When ordering, use the catalog number LV510307 to ensure you receive the correct trip unit variant — specifying only "CVS100B" without the trip unit type creates ambiguity between the TM-D, TM-A, and TM-E variants.

My site fault current study shows 28kA prospective fault current — can I still use the LV510307?

No. The LV510307 has a breaking capacity of 25kA at 415VAC. Installing it in a system where the prospective short-circuit current exceeds 25kA means the breaker cannot safely interrupt a worst-case fault. The correct action is to upgrade to a higher breaking capacity model — the CVS160B or CVS250B within the EasyPact CVS range — or to add primary fusing upstream of the LV510307 to limit the available fault current to within its rating. Do not proceed without an updated coordination study.

Does the LV510307 include a trip indicator, alarm output, or remote signaling capability?

The LV510307 with TM-D trip unit includes a manual trip indicator but does not provide an electronic alarm output or remote signaling capability. There is no data logging or remote monitoring function. If your project requires remote trip indication, alarm relay output, or integration with a building management system, you need the CVS100B with TM-E electronic trip unit, which offers those monitoring capabilities.

Is the LV510307 compatible with a 480VAC North American distribution panel?

No. The LV510307 is rated for 415VAC 3-phase 50/60Hz. Installing it directly on a 480VAC system without a step-down transformer creates a voltage mismatch that may result in insulation stress, incorrect trip behavior under fault conditions, and regulatory non-compliance. If your system is 480VAC, consult your electrical engineer and select the correct voltage-rated breaker for your jurisdiction. LeadTime.ca can assist with variant identification for your specific voltage requirement.

What is the difference between the LV510307 and a CVS160B, and how do I choose?

The primary difference is current rating: the LV510307 is rated at 100A while the CVS160B is rated at 160A. Both share the same 25kA breaking capacity and TM-D fixed trip unit configuration within the EasyPact CVS family. Choose the LV510307 if your feeder load is at or below 100A and your fault level is at or below 25kA. Choose the CVS160B if your load exceeds 100A. The CVS250B steps up to 50kA breaking capacity for higher fault-level applications at 250A. Standardizing on the EasyPact CVS family across all amperage tiers simplifies spare parts management across a multi-feeder switchboard.

Why Order From LeadTime.ca

  • Global shipping — LeadTime.ca ships the Schneider LV510307 and EasyPact CVS family worldwide, including North America, Europe, and international markets
  • Pre-order technical review — our team confirms voltage compatibility, fault level adequacy, and trip unit type before the order ships, preventing the wrong-unit returns that cost projects weeks
  • Specialist distributor access to authorized stock and lead time intelligence — we can tell you whether units are available for immediate shipment or require an import lead time before you commit to a schedule
  • Volume pricing available — contact us for quantity discounts on multi-breaker panel builds or facility-wide EasyPact CVS standardization projects
  • Hard-to-source parts sourcing — if the LV510307 is on extended lead time, our team can identify available stock across our supplier network

At-a-Glance Summary

  • Official product name: EasyPact CVS100B, 25kA at 415VAC, 100A, TM-D trip unit, 3P3d
  • Catalog number: LV510307 — same device as CVS100B; always specify catalog number when ordering to avoid trip unit ambiguity
  • Current rating: 100A fixed — no field adjustment; adjacent CVS models are 63A, 160A, and 250A
  • Voltage rating: 415VAC 3-phase, 50/60Hz — not compatible with 480VAC systems without transformer
  • Breaking capacity: 25kA at 415VAC — verify site fault level does not exceed this threshold before ordering
  • Trip unit: TM-D thermal-magnetic, factory-set at 0.63–1.0 × rated current (thermal) and 5–10 × rated current (magnetic) — non-adjustable
  • Poles: 3P3d fixed — no 2-pole or modular variant for this model
  • Width: 11.5 cm — verify switchboard allocation before panel design is finalized
  • Weight: 2.03 kg
  • Mounting: panel-mount fixed; switchboard installation only — not DIN-rail
  • Compliance: IEC standards, Class II insulation switchboard approved
  • Market-typical lead time: 2–8 weeks — confirm current stock with LeadTime.ca before committing to project schedule
  • Pricing: available on the product page — contact LeadTime.ca for volume and current pricing

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