Eaton / Cutler-HammerJGE3250FAG
Eaton / Cutler-Hammer JG3250 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
JG3250
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
JG3250
Quantity
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Eaton / Cutler-Hammer JG3250 - 250A 3 Pole Molded Case Circuit Breaker
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Description
Specifically calibrated for engine generators, the Eaton JG3250 Series G molded case circuit breaker provides essential protection for low short-circuit capacity systems. This unit-mount breaker installs into Eaton Pow-R-Line C panelboards, switchboards, and generator control panels for standby power applications. Rated 14 kAIC at 480V, it features a fixed thermal and fixed low magnetic pickup trip, and is fully suitable for reverse feed installations.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JG3250 |
| Series | JG |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 18kA @ 240VAC, 14kA @ 480VAC, 10kA @ 600VAC |
| Frame Type | JD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line C Panelboards, Switchboards, Generator Control Panels |
| Wire Gauge | 4 AWG - 350 kcmil |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Terminals |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | Reverse Feed |
Product FAQs
6 answersWhat panelboards and switchboards are compatible with the JG3250 circuit breaker?
The Eaton JG3250 is designed for use in Eaton Pow-R-Line C panelboards, switchboards, and generator control panels that accept Series G JG-frame breakers.
Are there higher interrupting capacity versions of the JG3250 available?
Yes. While the standard JG3250 is rated for 14kAIC at 480VAC, Eaton offers the JGH3250 rated at 65kAIC at 480VAC, and the JGC3250 rated at 100kAIC at 480VAC. Both alternatives share the exact same physical frame size and mounting dimensions.
What lug kit is used with the Eaton JG3250?
The standard aluminum lug kit for this 250A JG-frame breaker is catalog number TA250FJ. It accommodates wire sizes from 4 AWG up to 350 kcmil.
Does the JG3250 require a separate order for mounting hardware?
No. Eaton Series G breakers in the JG-frame include the necessary unit mounting hardware and standard line and load lugs directly from the factory, eliminating the need for separate parts orders.
What does the LI trip function indicate on the JG3250?
The LI designation means this thermal-magnetic breaker features Long-Time and Instantaneous trip functions. It provides standard overload and short-circuit protection with fixed thermal and fixed magnetic settings.
Can the Eaton JG3250 be reverse fed?
Yes, the JG3250 is suitable for reverse feed applications. This allows you to wire the line and load connections in either direction without compromising the breaker's protection capabilities.
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