Belonging to the PowerPacT H-Frame family, this 100A, 3-pole MCCB from Square D is designed for commercial and industrial environments. Equipped with a unit-mount configuration and standard lugs, it installs into switchboards and enclosures. It can also replace discontinued FAL36100 legacy breakers. The breaker features a 14kAIC rating at 600VAC and a fixed thermal-magnetic trip unit (LI). It includes a Visi-Trip indicator and HACR certification.
What is the recommended modern replacement for an obsolete Square D FAL36100?
The PowerPacT H-frame HDL36100 is the recommended upgrade path for the discontinued 100A, 3-pole FAL36100. While the electrical ratings align, the H-frame physical footprint differs from the legacy F-frame. Depending on your enclosure or switchboard, you may need specific retrofit mounting hardware or lug kits to complete the installation.
Are internal accessories field-installable on the HDL36100?
Yes. The PowerPacT H-frame family is designed to accept modular, field-installable internal accessories. You can add auxiliary switches, shunt trips, undervoltage releases, and alarm contacts behind the front cover without replacing the base breaker.
What replacement lug kit is required for the HDL36100 breaker?
The HDL36100 uses standard AL150HD mechanical lug kits for both the line and load sides. These lugs support 14 AWG to 3/0 AWG aluminum or copper wire. Always torque the wire binding screws to the exact specifications printed on the breaker faceplate to ensure a secure connection.
Can the HDL36100 be safely reverse-fed?
Yes. Molded case circuit breakers in the PowerPacT H-frame series with standard thermal-magnetic trip units do not have line and load side directional restrictions. The HDL36100 can be safely reverse-fed for use as a back-fed main breaker in compatible panels.
Are the thermal-magnetic trip characteristics adjustable on this model?
No. The HDL36100 features a fixed thermal and fixed magnetic (LI) trip mechanism. Both the continuous current rating and instantaneous short-circuit pickup are factory sealed. If your application requires adjustable long-time or instantaneous pickup settings, you will need to select a PowerPacT breaker equipped with a Micrologic electronic trip unit.
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Customers rate this product 4.0 out of 5 based on 1 review.