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Eaton / Cutler-Hammer JGX3250FAG Molded Case Circuit Breaker

  • 250A
  • 3 Pole
  • Unit Mount
Eaton / Cutler-Hammer JGX3250FAG
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU JGX3250FAG
Select Item Condition
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  • 250A
  • 3 Pole
  • Unit Mount

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Eaton / Cutler-Hammer JGX3250FAG - 250A 3 Pole Molded Case Circuit Breaker

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$4,514.26 In Stock

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Description

Serving as a critical protection component in industrial facilities, this 250A Series G breaker utilizes a fixed thermal and adjustable magnetic trip mechanism. The unit integrates into Eaton Pow-R-Line switchboards, panelboards, and standard Series G enclosures. With an impressive 200kAIC rating at 480V, the JG-frame device delivers reliable current-limiting capabilities to isolate severe electrical faults safely and efficiently.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Part Number JGX3250FAG
Series JGX
Amperage 250A
Poles 3
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 200kA @ 240VAC, 200kA @ 480VAC, 50kA @ 600VAC, 50kA @ 250VDC
Fit and installation
Frame Type JG
Terminal Type Lugs
For Use With Eaton Pow-R-Line Panelboards, Switchboards, MCCs, Series G Enclosures
Wire Gauge 8 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 8 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Handle Mechanism, Motor Operator, Padlock Attachment
Accessories Line and Load Lugs (TA250FJ), Metric Mounting Hardware
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, HACR, KEMA, UL
Temp Rating 40C
Construction Features HACR Rated, Extra High Interrupting Capacity, 80% Rated

Product FAQs

5 answers
Which Eaton equipment is compatible with the JGX3250FAG circuit breaker?

This JG-Frame breaker is designed for installation in Eaton Pow-R-Line panelboards, switchboards, motor control centers (MCCs), and Series G enclosures.

What conductor sizes and materials are supported by the standard lugs?

The included feed-thru lugs accept wire sizes ranging from 8 AWG to 350 kcmil and are rated for use with both aluminum (Al) and copper (Cu) wire.

How does the adjustable magnetic trip function work on this breaker?

The thermal-magnetic trip unit features a fixed thermal element for standard overload protection and an adjustable magnetic element. This allows electricians to tune the instantaneous short-circuit trip point to accommodate specific inrush currents without nuisance tripping.

What do the letters "FAG" mean in the JGX3250FAG catalog number?

In the Eaton Series G nomenclature, "F" stands for a fixed thermal trip, "A" indicates an adjustable magnetic trip, and "G" means the breaker includes standard line and load terminals.

Does this Series G breaker provide current-limiting performance?

Yes, Eaton Series G breakers feature a patented reverse loop contact design with high-speed blow-open action. This provides current-limiting performance to quickly clear faults and protect downstream equipment.

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