Designed for specialized industrial applications, the Square D FH361002100J is a 3-pole, 100A molded case circuit breaker. It provides dependable thermal-magnetic protection within legacy networks. This unit mounts into standard I-Line panelboards. When transitioning to modern equipment, the HGA36100 serves as the replacement, though it requires an additional alarm switch to match original functionality. It delivers 25kAIC at 480VAC and features a 2100A high magnetic trip setting.
HACR Rated, High Interrupting Capacity, Visual Trip Indicator, Contacts Closed for Shipment
Product FAQs
7 answers
What type of panelboard is required for the FH361002100J?
This breaker features an I-Line mounting style and is designed specifically for Square D I-Line panelboards and switchboards. It cannot be installed in standard unit-mount enclosures or load centers.
Is the FH361002100J an F-Frame breaker?
Yes, this breaker belongs to the legacy Square D F-Frame family. It shares the same physical dimensions as other F-Frame breakers, making it a direct fit for existing I-Line spaces designed for this footprint.
What does the 2100 suffix indicate on the FH361002100J catalog number?
The 2100 suffix designates a factory-installed alarm switch. This internal accessory changes state when the breaker trips, allowing for remote fault indication in control systems.
What is the modern PowerPact replacement for the FH361002100J?
The PowerPact H-Frame series, specifically the HGA36100, is the modern equivalent for this legacy F-Frame breaker. Because the original unit includes a factory-installed alarm switch, you will need to add an auxiliary alarm switch module to the PowerPact replacement to duplicate the original functionality.
What are the acceptable wire gauges for the FH361002100J terminals?
The factory lugs accept 14 AWG to 1/0 AWG copper conductors, or 12 AWG to 1/0 AWG aluminum conductors. Always verify that your selected wire size aligns with the 100A continuous current rating and local electrical codes.
Can the FH361002100J be used in DC circuits?
Yes, this thermal-magnetic breaker is rated for DC applications up to 250V DC, where it provides a 10kA interrupting capacity. It is also rated for AC systems up to 600V AC.
Are the thermal and magnetic trip points adjustable on this breaker?
No, the FH361002100J utilizes a standard LI (Long-Time, Instantaneous) thermal-magnetic trip unit with fixed thermal and fixed magnetic settings. It does not feature the adjustable dials found on electronic trip units.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 10 reviews.