Eaton/Cutler-Hammer JGH3250NN Circuit Breaker Frame Only
- 3 Pole
- Bolt-On
Quantity
Eaton/Cutler-Hammer JGH3250NN 3 Pole Circuit Breaker Frame Only
New
Quantity
Description
JGH3250NN - Cutler Hammer Bolt-On Circuit Breaker Frame Only
Cutler Hammer JGH series three pole 250 ampere bolt-on molded case circuit breaker with maximum voltage rating of 600V tripping method thermal magnetic trip type frame only (no trip) and standard interrupting rating of 65 kiloampere at 480V complete with (LI) long-time and instantaneous functions.
Specifications
| Brand | Eaton/Cutler-Hammer |
|---|---|
| Part Number | JGH3250NN |
| Series | JGH |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600 V |
| Phase | 3 |
Product FAQs
6 answersDoes the JGH3250NN include a trip unit?
No. While some product descriptions may list thermal-magnetic functions, the "NN" suffix in the catalog number confirms this is a frame-only component. You must install a compatible Eaton Series G JG-Frame trip unit for the breaker to operate.
Which circuit breaker family does the JGH3250NN belong to?
This frame is part of the Eaton/Cutler-Hammer Series G family, specifically the JG-Frame. It is designed to accept interchangeable trip units and accessories specific to the Series G JG-Frame lineup.
Can I field-install accessories on the JGH3250NN frame?
Yes, the Eaton Series G JG-Frame is designed to accept a variety of field-installable internal accessories, including shunt trips, auxiliary switches, and undervoltage releases. These are installed under the front cover.
What does the "H" in the JGH3250NN catalog number signify?
In the Eaton Series G nomenclature, the "H" designates this as a high-interrupting capacity frame. It provides a 65 kAIC rating at 480V, which offers greater fault current protection than the standard JGE or JGS frames.
Are line and load lugs included with this breaker frame?
Frame-only units like the JGH3250NN typically do not include line and load terminals out of the box. You will need to source the appropriate standard or multi-wire lugs based on your specific conductor size and material.
What safety precautions are required when installing a trip unit into this frame?
Always ensure the breaker frame is completely de-energized and disconnected from all power sources before installing or swapping a trip unit. Follow Eaton's specific torque requirements for the trip unit mounting screws to ensure a secure electrical connection.
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