Square D GFM250KA Circuit Breaker
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Core Specs
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Square D GFM250KA 3 Pole Circuit Breaker
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Quantity
Description
GFM250KA - Square D Molded Case Circuit Breaker
Square D GFM series three pole 250 ampere feed-thru molded case circuit breaker with maximum voltage rating of 600V tripping method thermal magnetic and standard interrupting rating of 65 kiloampere at 480V complete with (LI) Long-Time and Instantaneous trip functions and load side lug terminals.
Specifications
Product FAQs
8 answersWhat trip functions are included with the GFM250KA?
This unit features a thermal-magnetic trip mechanism equipped with Long-Time (L) and Instantaneous (I) trip functions for reliable overload and short-circuit protection.
How is the GFM250KA mounted?
This GFM series device is configured for feed-thru mounting, allowing it to be installed directly in compatible enclosures without requiring a plug-on or bolt-on busbar connection.
Which circuit breaker frames are compatible with the GFM250KA?
The GFM250KA ground fault module is designed to be used in combination with Square D KA-frame molded case circuit breakers that feature a factory-installed ground-fault shunt trip.
What is the adjustable ground-fault pickup range for the GFM250KA?
This ground fault module features an adjustable ground-fault pickup range from 40A to 200A for customized equipment protection.
Does the GFM250KA provide personnel ground-fault protection?
No, the GFM250KA is a UL 1053 listed ground-fault sensing and relaying device designed strictly for equipment protection, not for Class A personnel protection.
What type of wire connections does the GFM250KA support?
This feed-thru device comes standard with load side lug terminals to securely terminate your electrical conductors.
Does the GFM250KA support zone-selective interlocking (ZSI)?
Yes, this ground fault module can be zone interlocked with upstream MicroLogic trip systems or GC ground-fault systems by utilizing a RIM32 Restraint Interface Module.
Does the GFM250KA require control power for the integral test feature?
Yes, 120 Vac control power is required to operate the integral push-to-test feature on the ground fault module.
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