Eaton / WestinghouseHMCGA3800F
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Eaton / Westinghouse MCG3800 Molded Case Circuit Breaker
- 800A
- 3 Pole
- Bolt-On
Eaton / Westinghouse
MCG3800
Molded Case Circuit Breaker
Brand
Eaton / Westinghouse
SKU
MCG3800
Quantity
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Eaton / Westinghouse MCG3800 - 800A 3 Pole Molded Case Circuit Breaker
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Description
Built for demanding industrial environments, the Eaton MCG3800 is a 3-pole, 800A electronic trip circuit breaker from the legacy Seltronic family. It utilizes a solid-state microprocessor to provide adjustable long-time, short-time, and ground fault (LSG) protection, offering superior accuracy. This bolt-on unit is specifically engineered to fit older Westinghouse motor control centers, ensuring a seamless replacement process. With an interrupting capacity of 42kA at 240V, it maintains safety.Specifications
| Brand | Eaton / Westinghouse |
|---|---|
| Part Number | MCG3800-R |
| Series | MCG |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 42kA @ 240VAC, 30kA @ 480VAC, 22kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Westinghouse Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSG |
| Trip Function | Long-Time, Short-Time, Ground Fault |
| Trip Adjustability | Adjustable |
| Trip Unit Model | Electronic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Rating Plugs |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5.1, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Non-Interchangeable Trip |
Product FAQs
5 answersWhat equipment is compatible with the MCG3800 circuit breaker?
This legacy LC/MC frame breaker is engineered specifically for older Westinghouse switchboards and motor control centers. It utilizes a standard bolt-on mounting configuration.
How does the electronic trip unit on the MCG3800 function?
It uses a solid-state microprocessor to provide adjustable long-time, short-time, and ground-fault (LSG) protection. This allows licensed electricians to fine-tune the trip curve for precise coordination with other devices in the electrical system.
Can I use an 8MC800 rating plug in this breaker?
No. The MCG3800 requires the included 8MCG800 rating plug, which features a three-pin configuration. It is not interchangeable with the two-pin 8MC800 plug.
Is the MCG3800 a direct replacement for all Westinghouse MC frame breakers?
While it fits the same physical footprint as other legacy LC/MC frames, it specifically provides LSG trip functions. If your existing breaker requires only thermal-magnetic or standard LS protection, you must verify that the LSG trip profile meets your facility requirements before installation.
What safety and industry standards does this breaker meet?
The MCG3800 is UL 489 listed, CSA certified, and meets NEMA AB 1 standards, ensuring it is rated for safe operation in heavy-duty industrial environments.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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1 review
- MEMichael E.ReviewingEaton / Westinghouse MCG3800 - 800A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/8/18Greatness!
First rate service and sales staff!