Built for long-time and instantaneous circuit protection, the Square D HDA36100SA is a 100A, 3-pole molded case circuit breaker rated 600VAC and 250VDC. This PowerPacT HDA-series breaker has an HDA frame and I-Line mounting. Its thermal-magnetic trip has fixed thermal and fixed magnetic settings. Interrupting ratings include 25kA at 240VAC and 14kA at 600VAC. Approvals include CE, CSA, IEC, NOM and UL.
CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489
Approval
CE, CSA, IEC, NOM, UL
Temp Rating
-25C to 70C
Construction Features
HACR Rated
Product FAQs
10 answers
What circuit rating should I use when selecting the Square D HDA36100SA?
This is a 100A, 3-pole breaker for three-phase circuit protection. Select it according to the circuit's load, conductor ampacity and protection requirements, rather than current rating alone.
Can this breaker be used on AC or DC circuits?
The voltage ratings are 600VAC and 250VDC. Use the rating corresponding to the circuit type and verify that the circuit voltage does not exceed it.
How do I check the interrupting rating against available fault current?
The interrupting ratings are 25kA at 240VAC, 18kA at 480VAC, 14kA at 600VAC and 20kA at 250VDC. Compare the applicable rating with the available fault current at the installation point; the available fault current must not exceed that rating.
How does the thermal-magnetic trip work, and can I adjust it?
The thermal-magnetic trip provides long-time overload protection and instantaneous short-circuit protection. Both the thermal and magnetic settings are fixed, so select the breaker with those fixed protection characteristics in mind.
What conductor sizes and materials can I terminate?
The lug terminals accept copper or aluminum conductors from 14 AWG through 3/0 AWG. Choose a conductor within that range that also meets the circuit's ampacity and installation requirements.
What mounting method should I plan for?
This breaker uses I-Line mounting. Plan the installation around that mounting method rather than treating it as a generic mounting arrangement.
What dimensions should I use for layout planning?
The breaker measures 4.09 in wide, 6.40 in high and 3.40 in deep. Use these dimensions to account for the breaker body in the equipment layout.
What does the HACR rating mean for equipment selection?
HACR refers to heating, air-conditioning and refrigeration applications. The HACR rating is relevant when selecting circuit protection for equipment that calls for a HACR-rated breaker.
What temperature range should I consider for the installation location?
The temperature rating is -25C to 70C. Compare the expected installation temperatures with this range when selecting the breaker for the location.
How does the shunt trip support remote tripping?
The Square D HDA36100SA has a shunt-trip function that allows an external electrical signal to trip the breaker. This function supports control schemes that call for electrically initiated opening.
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