Eaton / Cutler-Hammer NGH312032E Molded Case Circuit Breaker
- 1200A
- 3 Pole
- Bolt-On
Quantity
Eaton / Cutler-Hammer NGH312032E - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Delivering robust circuit protection, the NGH312032E is a 1200A molded case circuit breaker from Eaton's NG-frame lineup. It features an electronic trip unit providing adjustable LSI functions for optimal system coordination. Designed for bolt-on applications, it integrates into Eaton Pow-R-Line 4 panelboards and motor control centers. This unit is officially replaced by the newer PDG53M1200E2NN model. With a 65 kAIC rating at 480V, it includes zone selective interlocking and true RMS sensing.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 |
|---|
| Terminal Type | Stud/Tapped Pad |
|---|---|
| For Use With | Eaton Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Handle Mechanism |
|---|---|
| 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 | HACR Rated, Reverse Feed, True RMS Sensing, Visual Trip Indicator, Zone Selective Interlocking, 80% Rated |
Product FAQs
7 answersDo I need to purchase wire lugs separately for this breaker?
Yes. The Eaton NGH312032E comes standard with imperial stud/tapped pad connections. Lugs for wire termination are not included and must be ordered separately based on your specific wire size, conductor material, and phase requirements.
What type of trip unit is installed on the NGH312032E?
This breaker features a solid-state Digitrip 310 electronic trip unit. The "32" suffix in the catalog number indicates it provides Long-Time, Short-Time, and Instantaneous (LSI) protection functions.
Are the LSI trip settings adjustable in the field?
Yes. The Digitrip 310 trip unit features adjustable dials on the front of the breaker, allowing you to configure the Long-Time, Short-Time, and Instantaneous pickup and delay settings to coordinate properly with your electrical system.
Does this circuit breaker include ground fault protection?
No, this specific model features an LSI trip unit without equipment ground fault protection. If your installation requires a ground fault trip function, you will need a breaker with an LSIG trip unit, such as the Eaton NGH312036E.
Can the NGH312032E be reverse fed?
Yes. All Eaton NG-frame circuit breakers are suitable for reverse feed applications, providing flexibility for different wiring and panel configurations.
Which panelboards are compatible with this NG-frame breaker?
The NGH312032E is designed for direct integration with Eaton Pow-R-Line 4 panelboards, as well as compatible Eaton switchboards and motor control centers.
Is this circuit breaker rated for 100 percent continuous duty?
No. The NGH312032E is a standard 80 percent rated circuit breaker. Per the National Electrical Code (NEC), continuous loads operating for three hours or more must not exceed 80 percent of the breaker's 1200A maximum capacity.
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