Eaton / Cutler-Hammer NGH312038E Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer NGH312038E - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Eaton / Cutler-Hammer NGH312038E - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | NGH312038E |
| 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 |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | ALSI |
| Trip Function | Arcflash Reduction, Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Mechanism, Lug Kits |
|---|---|
| Accessories | Lugs Not Included, Mounting Hardware |
| 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 | 80% Rated, High Interrupting Capacity, HACR Rated, Reverse Feed, True RMS Sensing, Arcflash Reduction Maintenance System |
Quantity
Eaton / Cutler-Hammer NGH312038E - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Eaton / Cutler-Hammer |
|---|---|
| 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 |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | ALSI |
| Trip Function | Arcflash Reduction, Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Mechanism, Lug Kits |
|---|---|
| Accessories | Lugs Not Included, Mounting Hardware |
| 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 | 80% Rated, High Interrupting Capacity, HACR Rated, Reverse Feed, True RMS Sensing, Arcflash Reduction Maintenance System |
Description
Built for enhanced safety, the NGH312038E is a 3-pole, 1200A Series G molded case circuit breaker. This NG-frame device handles demanding industrial power systems. It bolts into Eaton Series G panelboards, switchboards, and motor control centers. For modern upgrades, this model is replaced by the Power Defense PDG53M1200E4NN. It features a Digitrip 310 RMS electronic trip unit with ALSI functions and an Arcflash Reduction Maintenance System. It is 80% rated with 65kAIC at 480VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| 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 |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | ALSI |
| Trip Function | Arcflash Reduction, Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Mechanism, Lug Kits |
|---|---|
| Accessories | Lugs Not Included, Mounting Hardware |
| 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 | 80% Rated, High Interrupting Capacity, HACR Rated, Reverse Feed, True RMS Sensing, Arcflash Reduction Maintenance System |
Product FAQs
6 answersDoes the NGH312038E come with standard wire lugs?
No, this breaker does not ship with lugs. The 'E' in the catalog number indicates it is factory-equipped with imperial-tapped stud pads for busbar connections. Mechanical or compression cable lugs must be purchased separately based on your specific wire size.
How does the Arcflash Reduction Maintenance System (ARMS) work on this unit?
The Digitrip 310+ trip unit features a dedicated maintenance mode. When activated by personnel during service, it overrides standard delays to provide an accelerated instantaneous trip, significantly reducing incident arc energy in the event of a fault.
Can the Eaton NGH312038E be reverse fed?
Yes, Eaton Series G NG-frame molded case circuit breakers are approved for reverse feed applications. Line power can be connected to either the upper or lower terminals without compromising electrical performance or trip characteristics.
Is the NGH312038E rated for 100% continuous load?
No, this specific model is 80% rated. Under NEC requirements, continuous loads (those lasting 3 hours or more) must not exceed 80% of its 1200A maximum continuous current capacity.
Does the Digitrip 310+ trip unit require an external rating plug?
No, the factory-installed Digitrip 310+ electronic trip unit does not utilize interchangeable rating plugs. Long-time, short-time, and instantaneous pick-up and delay parameters are programmed directly via the rotary switches on the faceplate.
Are Cutler-Hammer and Eaton NGH312038E breakers interchangeable?
Yes. Eaton acquired the Cutler-Hammer brand and continues to manufacture the Series G NG-frame line under the Eaton name. A legacy Cutler-Hammer NGH312038E is fully interchangeable with a modern Eaton unit sharing the exact same catalog number.
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