Eaton / Cutler-Hammer NGH312036EC Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer NGH312036EC - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
The NGH312036EC is part of Eaton's Series G family, built for heavy-duty industrial environments. This 3-pole, 1200A NG-frame device delivers robust power distribution. It bolts into Eaton Series G panelboards, switchboards, and motor control centers. For facility upgrades, this unit is replaced by the Power Defense PDG53M1200E4CN. Featuring a Digitrip 310+ electronic trip unit, it provides adjustable LSIG protection. The breaker is 100% rated with a 100kAIC capacity at 240VAC.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | NGH312036EC |
| 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 | 480-1200A |
|---|
| Terminal Type | Stud/Tapped Pad |
|---|---|
| For Use With | Eaton Series G Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Imperial Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489 |
| Approval | CCC, CE, CSA, HACR, IEC, UL |
| Temp Rating | -20C to 70C |
| Construction Features | 100% Rated, HACR Rated, Current Limiting, Reverse Feed, True RMS Sensing |
Product FAQs
6 answersWhat equipment is the NGH312036EC circuit breaker designed to fit?
This NG-frame breaker is engineered for installation in Eaton Series G panelboards, switchboards, and motor control centers.
What adjustments are available on the Digitrip 310+ LSIG trip unit?
The LSIG designation means you can adjust the Long-Time, Short-Time, Instantaneous, and Ground-Fault pickup and delay settings. This provides maximum flexibility for curve shaping and selective coordination with other protective devices in your system.
Do I need to purchase a separate rating plug to adjust the continuous current on this breaker?
No. The Digitrip RMS 310+ electronic trip unit features an integrated long-time pickup switch. This allows you to modify the continuous current rating directly on the front of the breaker without swapping out physical rating plugs.
What type of terminal connections are provided on the NGH312036EC?
This breaker features imperial tapped line and load pads for bolt-on connections. You will need to attach appropriate mechanical or compression lugs to these tapped pads based on your specific conductor size and material.
Is the NGH312036EC suitable for direct current (DC) systems?
No. The Digitrip 310+ electronic trip unit utilizes internal current transformers that require alternating current to operate. It is strictly rated for 50/60 Hz AC applications.
How does the ground-fault function improve system protection?
The integrated ground-fault protection detects unintended electrical paths to ground. By utilizing adjustable pickup and time delay settings, it can isolate low-level faults before they cause extensive equipment damage or escalate into larger short circuits.
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