Eaton / Cutler-Hammer HNCG31200 Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Unit Mount
Quantity
Eaton / Cutler-Hammer HNCG31200 - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Part of the Series C N-Frame family, this 1200A molded case circuit breaker delivers advanced microprocessor-based protection for commercial and industrial applications. It installs into Eaton switchboards and panelboards using a standard unit-mount configuration. The integrated electronic trip unit provides adjustable long-time, short-time, and ground-fault (LSG) settings, allowing precise coordination. Rated at 65kAIC at 240V, it ensures robust fault clearing capabilities.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | HNCG31200-R |
| Series | HNC |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 50kA @ 480VAC, 25kA @ 600VAC |
| Amperage Range | 800-1200A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards and Switchboards |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSG |
| Trip Function | Long-Time, Short-Time, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Rating Plugs |
|---|---|
| Accessories | Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhich panelboards and switchboards are compatible with the HNCG31200?
This N-Frame breaker is designed specifically for use with Eaton Series C panelboards and switchboards. It utilizes a standard unit mount, bolt-on configuration for direct installation onto the bus or mounting pan.
What protection features does the LSG trip unit provide?
The integrated electronic trip unit features LSG functions, providing adjustable Long-Time, Short-Time, and Ground-Fault protection. This allows for precise coordination and ground fault monitoring in commercial and industrial power systems.
Can the electronic trip unit on the HNCG31200 be replaced in the field?
No. For Eaton Series C N-Frame circuit breakers, the electronic trip unit is built in as an integral part of the breaker and is not field replaceable.
Does the HNCG31200 require a rating plug to operate?
Yes, this N-Frame circuit breaker requires the installation of a compatible rating plug to establish the maximum continuous current rating and make the breaker operational.
Can this breaker replace older Westinghouse or Cutler-Hammer models?
Yes. Eaton acquired the Westinghouse distribution equipment line, so the HNCG31200 serves as an exact drop-in replacement for legacy Westinghouse and Cutler-Hammer breakers with the same catalog number, maintaining the original footprint.
How do I reset the breaker after an automatic trip?
Following an automatic fault trip or a manual push-to-trip test, the circuit breaker must be reset by moving the operating handle to the extreme OFF position before it can be turned back ON.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.