Schneider Electric 28904 — Compact INS80 Switch-Disconnector Review

By Abdullah Zahid
13 min read
Schneider Electric 28904 Compact INS80 3-pole 80A manual switch-disconnector with black rotary handle for panel installation

Schneider Electric 28904 Switch-Disconnector Compact INS80 - 3 Poles - 80 A - Standard Version with Black Rotary Handle: Specifications, Pricing, and Selection Guide

If you are a panel designer or controls engineer at the decision stage for an 80-amp manual isolation switch, the Schneider Electric 28904 is almost certainly already on your shortlist. This is the Compact INS80 — a 3-pole, 80 A manual switch-disconnector from Schneider Electric's ComPacT INS family, specified in thousands of low-voltage distribution panels globally for its built-in positive contact indication and consistent integration with the broader ComPacT ecosystem. The critical question before ordering is not whether this product works — it does — but whether this specific variant matches your circuit, your control scheme, and your panel footprint.

If you have already confirmed the 28904 is the right part for your build, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Specify the Schneider Electric 28904 — and Who Shouldn't

The Schneider Electric 28904 is the correct choice for engineers and panel builders whose application checks all of the following boxes:

  • Circuit load current at or below 80 A — the rated value for this model
  • Three-pole configuration required — matches standard three-phase distribution systems
  • Manual operation is acceptable — this is a hand-operated switch-disconnector, not motorized
  • Positive contact indication is required or preferred for isolation verification per IEC 60947-3
  • Schneider Electric ComPacT series is the specified or preferred brand for standardization across the panel build
  • EAN 3303430289043 matches the SKU on your bill of materials — critical to avoid cross-ordering with INS60 or INS125 variants

If your circuit current exceeds 80 A, the Compact INS125 or INS160 is the correct specification. If you require motorized or remote isolation control, the INS-M motorized variant is the right path. If your system is single-phase with a two-pole requirement, the 28904's 3-pole configuration is not the correct fit.

On this page:

What the Schneider Electric 28904 Does in a Distribution Panel

The Schneider Electric 28904 is a manual, non-automatic switch-disconnector — not a circuit breaker, not a contactor, and not a protective relay. Its function is deliberate isolation: giving maintenance personnel, panel builders, and operations teams a reliable, verifiable means of disconnecting an electrical load from supply before working on downstream equipment. The 3-pole, 80 A configuration covers the majority of standard three-phase motor and distribution applications at mid-range current levels.

What separates the 28904 from generic isolators in the same current class is the built-in positive contact indication. Per IEC 60947-3, isolation must be confirmed — not assumed. The Compact INS80 provides this confirmation mechanically and visually without requiring an additional sensor or auxiliary contact module. Schneider Electric attributes an estimated 40 percent reduction in panel wiring time to the ComPacT INS range design, a manufacturer claim that reflects the series' push toward simplified, standardized panel assembly. The black rotary handle is the standard version indicator — ergonomically designed for deliberate manual operation with reduced operator fatigue compared to older toggle styles.

The 28904 belongs to the ComPacT INS product family, Schneider Electric's standardized range of switch-disconnectors spanning from 50 A (INS60) through 160 A (INS160) and extending into motorized variants. Specifying within this family gives panel builders consistent mounting formats, compatible accessories, and a single support channel across multiple current ratings.

Where the 28904 Sits in a Typical Panel Architecture

The Schneider Electric 28904 sits at the isolation point between an incoming feeder or sub-panel and the downstream load — typically a motor starter, VFD, or branch distribution circuit. Its role in the signal and power chain is to provide a safe, confirmed open point that all downstream work depends on.

  • Upstream: Incoming three-phase feeder from main distribution board or sub-panel, typically protected by an upstream MCCB or fuse
  • At the 28904: Manual 3-pole switch-disconnector rated 80 A with positive contact indication — the isolation point operators actuate before maintenance begins
  • Downstream load side: Motor starter, variable frequency drive, or branch circuit distribution feeding the protected equipment
  • Connected load: Three-phase motor, compressor, pump, conveyor drive, or similar 80 A-class industrial load
  • Safety interface: Lockout/tagout hasp or padlock attachment at the handle position to enforce isolation during maintenance windows

Typical Applications for the Compact INS80

The 28904 is most commonly specified as the main isolation switch feeding a variable frequency drive or motor starter circuit in production line environments. In that role, the 80 A rating covers a significant portion of standard three-phase motor circuits, and the positive contact indication gives maintenance technicians a physical confirmation point before beginning work — a requirement in many facility safety programs.

In safety-critical systems requiring a defined manual emergency shutdown path, the 28904 provides a simple, auditable disconnect point. Unlike automated systems that rely on contactor logic, the manual rotary handle gives operators an unambiguous mechanical action with a visible result. For facilities teams retrofitting aging distribution boards, the ComPacT INS format offers a modern replacement for older contact-based isolation switches, with a consistent mounting footprint within the family range.

OEM panel builders constructing pre-engineered system packages — compressor stations, pump skids, conveyor drives — frequently standardize on the ComPacT INS range to reduce engineering variation across builds. The 28904 at 80 A slots naturally into this standardization as the mid-range isolation point for motor circuits that fall between the INS60 and INS125 ratings. In predictive maintenance workflows where positive contact confirmation must be documented, the built-in indication of the 28904 simplifies the compliance record.

Application Typical Deployment
VFD or motor starter circuit isolation Upstream manual disconnect on 80 A three-phase motor circuit in production line panel
Emergency manual shutdown Isolation point in safety-critical systems requiring confirmed manual disconnection before maintenance
Distribution board retrofit Modern replacement for aging isolation switches in 80 A class circuits during panel upgrades
OEM pre-engineered system packages Standard isolation component in compressor stations, pump skids, and conveyor drive panels
Predictive maintenance workflows Isolation point with positive contact confirmation for documented lockout/tagout compliance records
Food and beverage or pharmaceutical panels Manual isolation in hygienic environments where motorized control is not specified

Key Specifications and Compact INS Family Comparison

Specification Value Notes
Poles 3 Standard three-phase configuration
Current Rating 80 A Non-overload rated value
Type Manual Switch-Disconnector Non-automatic operation only
Handle Style Black rotary handle Standard version; ergonomic toggle design
Isolation Confirmation Positive contact indication Built-in; no additional sensor required; per IEC 60947-3
Product Family ComPacT INS Schneider Electric standardized range
Part Number 28904 Standard version reference
EAN Code 3303430289043 Verify against invoice to prevent variant errors
Voltage Class Contact distributor for confirmation Not explicitly confirmed in available documentation; verify before ordering
Standard Compliance IEC 60947-3 Manual switch-disconnectors standard

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

Model Poles Current Rating (A) Typical Applications Position in Range
INS60 2 or 3 50 Small motor circuits, light loads Entry-level
28904 (INS80) 3 80 Standard motor circuits, medium loads Mid-range
INS125 3 or 4 125 Large motor circuits, heavy loads Higher capacity
INS160 4 160 Very large motor circuits, main distribution High-capacity
INS-M series 3 or 4 Various Applications requiring motorized remote control Automated variant

If your load exceeds 80 A or your application requires motorized isolation, the INS125, INS160, or INS-M series is the correct specification — check current availability and variant options at LeadTime.ca.

Expert Verdict: Is the Schneider Electric 28904 Worth Specifying?

The Schneider Electric 28904 earns its place on a bill of materials when the application genuinely calls for what it delivers: 80 A three-pole manual isolation with positive contact indication, integrated into a globally supported product family. The buyers who get the most value from this component are panel designers building standard three-phase distribution systems, industrial automation OEMs constructing pre-engineered packages like conveyor drives, pump skids, and compressor stations, and facilities maintenance teams standardizing on Schneider ComPacT components across established manufacturing sites. For any of those profiles, the 28904 is a low-risk specification — the IEC 60947-3 compliance is documented, the product family is mature, and the ComPacT INS range's estimated 40 percent wiring time reduction benefit is a real factor for high-volume panel builders.

The 28904 is the wrong choice in several legitimate scenarios, and being clear about this matters more than promoting a single part number. If your circuit current exceeds 80 A, do not attempt to use this model — specify the INS125 or INS160 instead, and confirm the rating from your electrical single-line diagram rather than nameplate estimation. If your system design calls for motorized or remote isolation — automated shutdown sequences, remote operator stations, SCADA-integrated control — the INS-M motorized variant is what you need; the 28904's manual-only operation cannot be retrofitted for remote actuation. And if your design standard requires a fused backup isolator at this point in the circuit, the standard 28904 is not that product — you need the INS80-INV fused variant instead. These are not edge cases; they represent the most common ordering mistakes in this product class.

From a procurement standpoint, the 28904 is generally available through authorized Schneider Electric distributors globally, with typical lead times in the one-to-four-week range depending on regional stock levels. Pricing is available on the product page and varies by volume and geography — contact for project-specific quotes. What a specialist distributor adds that a generic marketplace cannot is pre-order technical validation: confirming the voltage class, verifying the pole configuration against your panel drawings, and catching the variant error before it becomes a rework cost. For a component this central to electrical safety and panel certification, that conversation is worth having before the order is placed. View current availability and pricing for the Schneider Electric 28904 at LeadTime.ca.

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

What Engineers Need to Know Before Ordering the Schneider Electric 28904

Community discussion specific to the Schneider Electric 28904 is sparse across the major industrial automation forums, which is not unusual for a well-understood component in a mature product family. What that means in practice is that the most valuable pre-order intelligence comes not from forum threads but from the specification ambiguities that recur at the distributor level — the questions that arrive before every order and, when left unanswered, generate the returns and project delays that cost real money.

The single most significant data gap in publicly available documentation for the 28904 is the explicit voltage class rating. Schneider's ComPacT INS range covers multiple voltage classes, and the 28904's specific voltage rating is not consistently surfaced in standard distributor listings. Before ordering, confirm the voltage class of your system against the official Schneider Electric datasheet — request it directly from Schneider or from your distributor. Similarly, breaking capacity and switching capacity figures, which electrical engineers need to verify coordination with upstream protective devices, are not detailed in typical listing pages. These specifications must come from the official datasheet, not from catalog summaries.

The ordering mistakes that panel builders and procurement specialists encounter most consistently with this product family are current rating mismatches and handle variant confusion. The INS60 at 50 A and the INS125 at 125 A bracket the 28904 closely in catalog listings, and visual similarity between models makes part number discipline critical. The EAN code 3303430289043 is the definitive identifier for the standard 28904 — specifying it on purchase orders prevents distributor auto-substitution of adjacent models. If you are uncertain whether the 28904 is correctly matched to your application, the LeadTime.ca team can walk through the specification with you before the order is placed — that pre-sales check is exactly where specialist distributor value lies.

Installation and Wiring Overview for the Compact INS80

The following points cover the key installation considerations for the Schneider Electric 28904. For complete wiring diagrams, panel cutout dimensions, and step-by-step installation procedures, refer to Schneider Electric's official installation documentation available through your distributor or at se.com.

  • Three-pole load conductors connect to the three switch terminals — confirm phase labeling (L1, L2, L3 or equivalent) matches your circuit diagram before terminating
  • Confirm panel cutout and mounting dimensions against the Compact INS80 installation drawing from Schneider Electric — physical footprint must be verified before panel fabrication
  • Positive contact indication must be visually verified after installation: manually operate the handle from ON to OFF and confirm the isolation indicator changes state before energizing the circuit
  • Lockout/tagout compatibility should be confirmed against your facility's safety procedures — the black rotary handle supports padlock attachment for LOTO compliance, but verify the specific method in your safety program
  • All connections must be verified by a qualified electrician before energizing — do not assume wiring is complete based on visual inspection alone

Wrong-Part Prevention Checklist Before Ordering the Schneider Electric 28904

Before placing your order, work through each item on this checklist verbatim. These are the specific failure points where incorrect orders originate:

  1. Confirm 80 A is the correct current rating for your load (not 60A or 125A)
  2. Verify 3-pole configuration matches your electrical system (not 2-pole or 4-pole)
  3. Check that positive contact indication feature is required by your standard (IEC 60947-3)
  4. Confirm 28904 is the standard version with black rotary handle (not INV variant with fused backup)
  5. Verify voltage class on your system nameplate before ordering (documentation does not explicitly state voltage in available sources - contact Schneider for confirmation)
  6. Confirm this is a MANUAL switch-disconnector (not motorized) for your application
  7. Check physical mounting cutout dimensions against your panel design

If any item on this checklist is unresolved, do not finalize the order. Contact the LeadTime.ca team to verify the correct specification before committing — catching a variant error before shipping costs nothing; catching it after installation costs significantly more.

Frequently Asked Questions

What is the voltage class of the Schneider Electric 28904, and does it suit my system?

The explicit voltage class for the 28904 is not confirmed in standard distributor listings and catalog summaries. Before ordering, request the official Schneider Electric datasheet from your distributor or directly from se.com to confirm the voltage rating matches your system's nameplate value. This is a mandatory pre-order step — do not assume compatibility from the current rating alone.

Can the 28904 be converted to motorized operation, or do I need a different model?

The Schneider Electric 28904 is a manual-only switch-disconnector. It cannot be retrofitted for motorized or remote operation. If your application requires motorized control — remote actuation, automated shutdown sequences, or SCADA integration — specify the INS-M motorized variant from the ComPacT INS family. Attempting to automate a manual-only isolator is a design violation and a safety risk.

What is the difference between the 28904 and the INS80-INV fused variant?

The standard 28904 is a non-fused switch-disconnector — it provides isolation but does not include integral backup fuse protection. The INS80-INV variant adds fused backup to the same 80 A, 3-pole platform. If your design standard or IEC/UL compliance requirement specifies a fused isolator at this point in the circuit, the 28904 is not the correct model. Confirm your protection scheme against your electrical design standard before ordering.

How do I confirm positive contact indication is functioning correctly after installation?

With the circuit de-energized and properly locked out per your safety procedures, manually operate the black rotary handle from the ON position to the OFF position. Confirm visually that the isolation indicator changes state. Then return to ON and confirm the indicator returns. If the indicator does not change in either direction or the handle resists normal operation, do not force it — contact Schneider Electric technical support with the model number 28904 and your operating history. Document both verification events in your maintenance log for compliance records.

Is the 28904 the direct replacement for older Schneider isolation switches in the same current class?

The ComPacT INS80 format is Schneider Electric's current standard for this current class, and the 28904 is commonly specified in retrofit projects replacing older contact-based isolation switches. However, panel cutout dimensions and terminal compatibility must be verified against your existing panel design before treating it as a direct swap. Request the installation drawing from Schneider or your distributor and compare physical dimensions before fabricating or modifying the panel enclosure.

What breaking capacity does the 28904 provide, and how does it coordinate with upstream protection?

Breaking capacity specifications for the 28904 are not detailed in standard catalog listings — they are available in the official Schneider Electric technical datasheet. Request this document from your distributor before finalizing your panel protection coordination study. Breaking capacity is a mandatory input for upstream device coordination and must not be assumed from the current rating alone.

Why Order the Schneider Electric 28904 Through LeadTime.ca

  • Global shipping — the LeadTime.ca team sources and ships to customers worldwide, not limited to any single region
  • Pre-order technical validation — specialist support to confirm the 28904 is correctly matched to your voltage class, pole configuration, and application before the order ships
  • Verified stock and committed lead times — no generic marketplace estimates; real availability data before you lock in your panel build schedule
  • Volume and project pricing available — contact for quote on multi-unit orders or project-specific requirements
  • Authorized distributor channel — ensures manufacturer warranty coverage and after-sale support aligned with Schneider Electric's official terms

At-a-Glance Summary: Schneider Electric 28904

  • Product: Compact INS80 switch-disconnector, 3-pole, 80 A, manual operation with black rotary handle
  • Positive contact indication built in — meets IEC 60947-3 isolation verification requirement without additional sensors
  • Part of Schneider Electric's ComPacT INS family — standardized range from 50 A (INS60) through 160 A (INS160) plus motorized INS-M variants
  • EAN code 3303430289043 — specify on all purchase orders to prevent auto-substitution of adjacent variants
  • Manufacturer claim: estimated 40 percent reduction in panel wiring time attributed to ComPacT INS range design
  • Voltage class must be confirmed via official datasheet before ordering — not confirmed in standard catalog listings
  • Typical lead time: one to four weeks depending on regional stock — confirm with distributor before finalizing project schedule
  • Wrong-part risk: INS60 (50 A too small), INS125 (80 A too small for loads above rating), INS-M (required if motorized control needed), INS80-INV (required if fused backup protection is specified)
  • Pricing available on the product page at LeadTime.ca — contact for volume or project pricing

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