HJA36100 - Square D - PowerPacT H I-Line Molded Case Circuit Breaker - 100 Amp - 3 Pole - 600 Volt
HJA36100 - Square D - PowerPacT H I-Line Molded Case Circuit Breaker - 100 Amp - 3 Pole - 600 Volt
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The Square D HJA36100 is a 100A, 3-pole PowerPacT H-Frame molded case circuit breaker with an I-Line plug-in line-side connection, rated 600VAC and built for Square D I-Line panelboards and switchboards.
This thermal-magnetic breaker delivers fixed Long-Time and Instantaneous (LI) protection with a 65kA interrupting rating at 480VAC and 100kA at 240VAC — enough headroom for most commercial and industrial service entrance and feeder positions. It is the exact substitute for the discontinued FH36100 and occupies the same I-Line mounting space, so retrofits require no bus modification. Current-limiting construction cuts peak let-through energy during a fault, and the unit is 80% rated with reverse-feed capability and a Visi-Trip fault indicator.
Specifications
| Brand | Square D / Schneider Electric |
|---|---|
| Series | PowerPacT H-Frame, I-Line, Type HJ |
| Part Number | HJA36100 |
| Amperage | 100A (150A frame) |
| Voltage | 600VAC, 480VAC, 240VAC, 250VDC |
| Poles | 3 |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC, 20kA @ 250VDC (UL 489) |
| Mounting Style | I-Line Plug-In |
| Terminal Type | I-Line jaws on line side, mechanical lugs on load side |
| Phase Sequence | ABC |
| Continuous Current Rating | 80% |
| For Use With | Square D I-Line Panelboards and I-Line Switchboards |
| Trip Technology | Thermal Magnetic (LI — Long-Time, Instantaneous) |
| Trip Adjustability | Fixed Thermal / Fixed Magnetic |
| Wire Range | #14 AWG – 3/0 AWG (Al/Cu) |
| Replaces | Square D FH36100 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Handle Tie |
| Standards | UL 489, CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1 |
| Approvals | UL, CSA, CE, IEC, NOM |
| Construction Features | Current Limiting, HACR Rated, Visi-Trip Indicator, Reverse Feed Capable, 80% Rated |
| Operating Temperature | -25°C to 70°C |
| Shipping Dimensions | 16 x 10 x 10 in |
| Shipping Weight | 9 lb |
| Condition | New |
Frequently Asked Questions
What is the interrupting rating of the HJA36100?
65kA at 480VAC, 100kA at 240VAC, 25kA at 600VAC, and 20kA at 250VDC.
What does HJA36100 stand for?
H = PowerPacT H-Frame, J = 65kA interrupting rating at 480VAC, A = I-Line plug-in with ABC phase sequence, 3 = 3 poles, 6 = 600V class, and 100 = 100 amps.
Is the HJA36100 a direct replacement for the FH36100?
Yes. It is the designated substitute for the discontinued Square D FH36100 and mounts in the same I-Line space with the same phase sequence.
Is the trip unit on the HJA36100 adjustable or interchangeable?
No. The trip unit is fixed thermal and fixed magnetic and is not interchangeable, so the 100A rating cannot be changed in the field.
Can the HJA36100 be reverse fed?
Yes. It is suitable for reverse-feed installations under UL 489 with no line/load restriction.
What wire sizes do the load lugs accept?
The supplied mechanical lugs accept #14 AWG through 3/0 AWG aluminum or copper conductors.
What is the continuous load limit for the HJA36100?
At 80% rating, continuous loads should not exceed 80 amps unless the breaker is applied in an assembly listed for 100% continuous duty.
Is the HJA36100 UL listed?
Yes. It is UL 489 listed and also certified to CSA C22.2 No. 5, IEC 60947-2, and NOM, with CE marking.