Eaton / Westinghouse HMCG3800F Molded Case Circuit Breaker
- 800A
- 3 Pole
- Bolt-On
Quantity
Eaton / Westinghouse HMCG3800F - 800A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Designed for demanding commercial environments, the Eaton HMCG3800F high-capacity molded case circuit breaker frame delivers reliable performance. It mounts into legacy Westinghouse switchboards and Eaton Series C panelboards, offering a straightforward replacement solution for discontinued hardware. Utilizing microprocessor-based Seltronic technology, the breaker provides adjustable long-time, short-time, and ground fault sensing for superior system coordination.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Series | HMCG |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | MC |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Series C Panelboards, Westinghouse Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSG |
| Trip Function | Long-Time, Short-Time, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Rating Plug, Shunt Trip, Auxiliary Switch, Undervoltage Release |
|---|---|
| Accessories | Rating Plug |
| Standards | CSA C22.2 No. 5.1, IEC 157-1, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhat enclosures and panelboards are compatible with the HMCG3800F circuit breaker?
This MC-frame breaker is designed for bolt-on installation in legacy Eaton Series C panelboards, Westinghouse switchboards, and compatible motor control centers.
What protection features are included in the LSG electronic trip unit?
The LSG designation indicates adjustable microprocessor-based sensing for Long-Time (overload), Short-Time (short circuit), and Ground-Fault conditions. This allows panel builders to precisely coordinate the breaker with downstream protective devices.
Are line and load terminals included with the HMCG3800F?
Yes, this configuration includes standard line and load lugs for bolt-on mounting. Always verify wire size compatibility and apply the manufacturer torque specifications during installation to ensure a secure connection.
Can the Eaton HMCG3800F replace older Westinghouse Seltronic breakers?
Yes, this breaker serves as a direct replacement for legacy Westinghouse and Cutler-Hammer HMCG Seltronic breakers sharing the same MC frame footprint and 800A maximum rating.
How does the ground-fault function operate on the HMCG3800F?
The integrated ground-fault (G) sensing detects low-level leakage currents to ground. When a fault exceeds the adjustable pickup setting, the electronic trip unit opens the circuit to prevent equipment damage and reduce fire risks in industrial environments.
Does the HMCG3800F utilize interchangeable rating plugs?
Yes, the electronic trip unit on this MC-frame breaker requires a rating plug to establish the continuous current limit. While typically equipped with an 800A plug, the frame can accept alternate rating plugs to lower the maximum amperage without replacing the entire breaker.
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