Eaton / Cutler-HammerJGH3150FAG
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Eaton / Cutler-Hammer JGH3125FAG Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
JGH3125FAG
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
JGH3125FAG
Quantity
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Eaton / Cutler-Hammer JGH3125FAG - 125A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for heavy-duty industrial use, the Eaton JGH3125FAG is a 125A, 3-pole molded case circuit breaker from the Series G lineup. It delivers dependable power distribution and protection for demanding commercial facilities. The unit-mount configuration allows for easy integration into Eaton Pow-R-Line panelboards, switchboards, and motor control centers. Featuring a high interrupting capacity of 65 kAIC at 480V, this JG-frame breaker is equipped with an adjustable magnetic trip unit.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | JGH3125FAG |
| Series | JGH |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 22kA @ 250VDC |
| Frame Type | JG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Cu/Al) |
| 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, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, KEMA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, High Interrupting Capacity, 80% Rated |
Product FAQs
8 answersWhat enclosures and panelboards accept the JGH3125FAG?
This unit mount breaker is designed for use in Eaton Pow-R-Line panelboards, switchboards, and motor control centers.
What does the H in the JGH3125FAG catalog number indicate?
The H designates this as a high interrupting capacity JG-frame breaker. It provides a higher fault current rating than standard JGE or JGS models, delivering up to 65 kAIC at 480 Vac.
Is the trip unit on the JGH3125FAG fully adjustable?
No, this breaker features a fixed thermal and adjustable magnetic trip unit. The magnetic short-circuit pickup can be adjusted between 625A and 1250A.
Does the JGH3125FAG include line and load lugs?
Yes, this specific catalog number includes standard line and load terminals designed to accept 4 AWG to 350 kcmil copper or aluminum conductors.
Can the JGH3125FAG replace a standard JGE3125FAG or JGS3125FAG?
Yes, the JGH3125FAG shares the exact same physical dimensions and mounting footprint as other Series G JG-frame breakers. It can be used as a direct replacement while providing a higher interrupting rating.
Is the JGH3125FAG designed for DIN rail mounting?
No, this is a unit mount molded case circuit breaker designed for panel or base mounting. It is not compatible with DIN rail installations.
What does the FAG suffix mean in the JGH3125FAG part number?
In the Eaton Series G nomenclature, F indicates a fixed thermal and adjustable magnetic trip unit, A means line and load terminals are included, and G denotes metric mounting hardware.
Can the JGH3125FAG be used in DC electrical systems?
Yes, in addition to its AC ratings, this thermal-magnetic breaker is rated for use in DC applications up to 250 Vdc with an interrupting capacity of 22 kAIC.
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