Square D HJA36100U31X Circuit Breaker
Square D
HJA36100U31X
Circuit Breaker
Brand
Square D
SKU
HJA36100U31X
Quantity
Core Specs
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Square D HJA36100U31X 3 Pole Circuit Breaker
New
Quantity
Quantity
Square D HJA36100U31X 3 Pole Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | HJA36100U31X |
| Series | PowerPacT H |
| Amperage | 100 A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 65kAIC at 480VAC |
| Amperage Range | 25-100A |
|---|
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Standards | RoHS, REACh, HACR |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25 to 70 °C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, 80% Rated, True RMS Sensing |
Quantity
Square D HJA36100U31X 3 Pole Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | PowerPacT H |
| Amperage | 100 A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 65kAIC at 480VAC |
| Amperage Range | 25-100A |
|---|
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Standards | RoHS, REACh, HACR |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25 to 70 °C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, 80% Rated, True RMS Sensing |
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Description
Square D HJA36100U31X 3 Pole Circuit Breaker
The Square D HJA36100U31X is a 3 Pole solid state molded case circuit breaker with a current rating of 100 Amps and a voltage rating of 600VAC. It has an interrupting rating of 65kAIC at 480VAC. The HJA36100U31X has an I-Line style plug-in connection type and includes long time and instantaneous trip functions.
Specifications
| Brand | Square D |
|---|---|
| Part Number | HJA36100U31X |
| Series | PowerPacT H |
| Amperage | 100 A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 600VAC |
| Phase | 3 |
| AIC Rating | 65kAIC at 480VAC |
| Amperage Range | 25-100A |
|---|
| Frame Type | HJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Standards | RoHS, REACh, HACR |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25 to 70 °C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, 80% Rated, True RMS Sensing |
Product FAQs
6 answersCan the HJA36100U31X replace older Square D FA or FH frame breakers?
Yes, PowerPacT H-frame I-Line circuit breakers serve as the direct modern replacements for legacy Square D FA, FC, and FH frame I-Line breakers, such as the FA36100 and FH36100.
How does the HJA36100U31X connect to the panel bus?
It uses Square D's proprietary I-Line plug-on connection, which allows the breaker to snap directly onto the bus in an I-Line panelboard or switchboard without requiring bolted bus connections.
What trip features are included with the U31X suffix?
The U31X designation indicates the breaker is equipped with a Micrologic 3.2 solid-state electronic trip unit. This provides highly accurate, adjustable long-time and instantaneous (LI) protection settings for precise system coordination.
What wire sizes are compatible with the factory lugs on this breaker?
The standard mechanical lugs on the load side of the HJA36100U31X accept aluminum or copper wire gauges ranging from 14 AWG up to 3/0 AWG.
Does the HJA36100U31X provide ground fault protection?
No, the Micrologic 3.2 trip unit only provides long-time and instantaneous (LI) protection. It does not include ground fault (G) or short-time (S) trip functions.
Can I install this breaker in a standard QO or NQ panelboard?
No, the HJA36100U31X features an I-Line plug-in mounting style and is exclusively compatible with Square D I-Line panelboards and switchboards.
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