Square D QJA32090 Molded Case Circuit Breaker
- 90A
- 3 Pole
- I-Line
Square D
QJA32090
Molded Case Circuit Breaker
Brand
Square D
SKU
QJA32090
Quantity
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Square D QJA32090 - 90A 3 Pole Molded Case Circuit Breaker
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Description
Belonging to the PowerPact Q-Frame lineup, the Square D QJA32090 is a 90-amp, 3-pole molded case circuit breaker. It delivers dependable thermal-magnetic protection for commercial applications requiring long-time and instantaneous trip functions. Designed for quick installation, this device mounts into standard Square D I-Line panelboards. It acts as an exact substitute for discontinued Q23090 models. With a 100kA interrupting capacity at 240V, it safely clears severe electrical faults.Specifications
| Brand | Square D |
|---|---|
| Series | QJA |
| Amperage | 90A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Mercury Free, PVC Free |
Product FAQs
6 answersWhat type of panelboard is the QJA32090 compatible with?
The QJA32090 is an I-Line style plug-in circuit breaker designed exclusively for use in Square D I-Line panelboards and switchboards. It will not fit standard QO load centers or standard NQ panelboards.
What does the 'J' in the QJA32090 catalog number indicate?
In the PowerPacT Q-frame series, the 'J' indicates the interrupting rating. The QJA32090 has a J-class interrupting rating of 100kA at 240VAC. Other common ratings in this frame include B (10kA), D (25kA), and G (65kA).
How much space does this 3-pole Q-frame breaker require on the I-Line bus?
The 3-pole QJA32090 circuit breaker requires 4.5 inches of mounting space on an I-Line panelboard bus.
What is the recommended lug torque for the QJA32090 circuit breaker?
The load-side mechanical lugs on the QJA32090 should be torqued to 250 lb-in (28 N-m) for wire sizes ranging from 4 AWG to 300 kcmil (Al/Cu). Always verify with the label on the breaker prior to installation.
Can the QJA32090 be used on a 480V system?
No, the QJA32090 is rated for a maximum of 240VAC. It is not suitable for 480V or 600V applications.
Is the QJA32090 a direct replacement for older Q2 series breakers?
Yes, Square D PowerPacT Q-frame circuit breakers, including the QJA32090, are direct replacements for legacy Square D Q2 series devices.
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