HJA36110 - Square D - PowerPacT H I-Line Molded Case Circuit Breaker - 110 Amp - 3 Pole - 600 Volt
HJA36110 - Square D - PowerPacT H I-Line Molded Case Circuit Breaker - 110 Amp - 3 Pole - 600 Volt
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The Square D HJA36110 is a 110A, 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.
The 110A rating is an uncommon size that sits between the standard 100A and 125A frames, which makes this breaker the practical answer when a feeder is sized just above 100 amps and a 125A device would overprotect the conductor. It delivers thermal-magnetic Long-Time and Instantaneous (LI) protection with a 65kA interrupting rating at 480VAC and a field-adjustable magnetic pickup for circuits with high inrush. The H-Frame plugs into the standard I-Line mounting space and serves as a drop-in replacement for the discontinued KH36110.
Specifications
| Brand | Square D / Schneider Electric |
|---|---|
| Series | PowerPacT H-Frame, I-Line, Type HJ |
| Part Number | HJA36110 |
| Amperage | 110A (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 Switchboards |
| Trip Technology | Thermal Magnetic (LI — Long-Time, Instantaneous) |
| Trip Adjustability | Fixed Thermal / Adjustable Magnetic |
| Wire Range | #14 AWG – 3/0 AWG (Al/Cu) |
| Replaces | Square D KH36110 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
| Standards | UL 489, CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1 |
| Approvals | UL, CSA, CE, IEC, NOM, HACR |
| Construction Features | Current Limiting, HACR Rated, Reverse Feed Capable, Non-Interchangeable Trip |
| Operating Temperature | -25°C to 70°C |
| Shipping Dimensions | 14 x 10 x 10 in |
| Shipping Weight | 9 lb |
| Condition | New |
Frequently Asked Questions
Why choose a 110A breaker instead of a 100A or 125A?
A 110A device is used when the calculated load or conductor ampacity falls between the two standard sizes. Going to 125A can leave the conductor underprotected, while 100A may nuisance trip. The HJA36110 fills that gap.
What is the interrupting rating of the HJA36110?
65kA at 480VAC, 100kA at 240VAC, 25kA at 600VAC, and 20kA at 250VDC.
Is the magnetic trip adjustable on the HJA36110?
Yes. The instantaneous magnetic pickup is field adjustable, which helps with motor and transformer inrush. The thermal long-time element is fixed at 110A.
What older breaker does the HJA36110 replace?
It is the recognized drop-in replacement for the discontinued Square D KH36110, using the same I-Line mounting space.
What does HJA36110 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 110 = 110 amps.
Can the trip rating be changed in the field?
No. The trip unit is non-interchangeable, so the 110A rating is permanent.
What is the continuous load limit for the HJA36110?
At 80% rating, continuous loads should not exceed 88 amps unless applied in an assembly listed for 100% continuous duty.
Is the HJA36110 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.