Eaton / Cutler-Hammer NGH312035E Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer NGH312035E - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for industrial applications, the NGH312035E is a 1200A Series G molded case circuit breaker. It features a Digitrip 310+ electronic trip unit with LSG functions. This bolt-on MCCB mounts into Eaton panelboards and switchboards. It is the designated replacement for the PDG53M1200E5NN. Delivering 65 kAIC at 480VAC, this 80% rated breaker includes true RMS sensing and zone selective interlocking for enhanced system safety.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | NGH312035E |
| Series | NGH |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 600-1200A |
|---|
| Frame Type | NG |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | Eaton Series G Panelboards, Switchboards, Motor Control Centers |
| Max Wire | 500 kcmil |
| Min Wire | 4 AWG |
| 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, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Digitrip 310+ Trip Unit |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, IEC, UL |
| Temp Rating | -20C to 70C |
| Construction Features | HACR Rated, Current Limiting, Reverse Feed, True RMS Sensing |
Product FAQs
8 answersWhat type of trip unit is installed on the Eaton NGH312035E?
This breaker features a factory-installed Digitrip 310+ electronic trip unit. The "35" in the catalog number indicates it provides Long-Time, Short-Time, and Ground Fault adjustable protection.
Does the NGH312035E come with wire lugs out of the box?
No. Like most Eaton NG-frame breakers, it ships with imperial tapped line and load conductor terminals. If you require standard aluminum or copper wire lugs for cable connections, you must purchase them separately. The TA1200NB1 lug kit is commonly used for 1200-amp applications.
Is this 1200-amp breaker rated for 80 percent or 100 percent continuous load?
The NGH312035E is a standard 80 percent rated circuit breaker. Continuous loads should not exceed 960 amps for safe and code-compliant operation.
Can the Eaton NGH312035E be reverse fed?
Yes. Eaton NG-frame Series G circuit breakers are suitable for reverse feed applications. The line and load connections can be swapped without affecting the electronic trip unit or interrupting capabilities.
Does the NGH312035E carry a HACR rating?
Yes. All Eaton NG-frame circuit breakers, including this model, are HACR rated for use with heating, air conditioning, and refrigeration equipment.
Does this breaker provide personnel or equipment ground fault protection?
The LSG function on the Digitrip 310+ trip unit provides equipment ground fault protection, not Class A personnel protection. It is designed to protect industrial machinery and distribution systems from damaging low-level ground faults.
Are auxiliary switches or shunt trips pre-installed on this breaker?
No. The NGH312035E does not come with factory-installed accessories. However, it accepts common field-fittable internal accessories such as shunt trips, undervoltage releases, and auxiliary switches.
Does the Series G NG-frame replace older Series C ND-frame breakers?
Yes. The Eaton Series G NG-frame is frequently used to upgrade older Series C ND-frame installations. However, physical dimensions, lug kits, and bus connections may differ, so confirm your enclosure has the required clearance and mounting hardware.
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.