Delivering robust performance, the Square D HDF36100 is a 3-pole, 100A molded case circuit breaker within the PowerPacT H-Frame series. It offers fixed thermal and magnetic (LI) trip functions to safeguard commercial and industrial electrical systems. Designed for unit mounting, this breaker utilizes busbar connections for compatibility with Square D switchboards and industrial control panels. It effectively replaces older FA36100 and FH36100 models. It features an 18kAIC rating at 480VAC.
The HDF36100 is a PowerPacT H-Frame molded case circuit breaker. While this specific model is configured for a 100A continuous current rating, the H-Frame itself supports a maximum capacity of 150A.
Can I install the HDF36100 in an I-Line panelboard?
No. The "F" in the HDF36100 catalog number designates unit mounting with busbar connections on both the line and load sides. If you need an I-Line plug-in breaker with the same specifications, you must use catalog number HDA36100.
How does the trip unit on the HDF36100 operate?
It utilizes a fixed thermal-magnetic trip unit with Long-Time (L) and Instantaneous (I) functions. The thermal element provides delayed protection against overloads, while the magnetic element trips instantaneously during a short circuit.
What does the "D" in the HDF36100 catalog number indicate?
The "D" specifies the breaker's interrupting rating tier within the PowerPacT series. For this model, it denotes a short-circuit breaking capacity of 14kA at 600VAC, 18kA at 480VAC, and 25kA at 240VAC.
What are the magnetic trip settings for the HDF36100?
This 100A breaker features fixed magnetic protection with a hold current of 900A and a trip current of 1700A.
Is the HDF36100 rated for 80% or 100% continuous current?
The HDF36100 is a standard-rated breaker, meaning it is rated for continuous operation at 80% of its 100A capacity.
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