Square D QJA32070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- I-Line
Square D
QJA32070
Molded Case Circuit Breaker
Brand
Square D
SKU
QJA32070
Quantity
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Square D QJA32070 - 70A 3 Pole Molded Case Circuit Breaker
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Quantity
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Description
Delivering robust power distribution capabilities, this 70A PowerPacT Q-Frame breaker features fixed long-time and instantaneous (LI) trip settings. The three-pole configuration includes an ABC phase connection for balanced commercial and industrial loads. This unit installs into Square D I-Line panelboards and switchboards with ease. Facility managers can also use it to replace older Q23070 models. With a 100kAIC rating at 240VAC, it provides exceptional current-limiting performance.Specifications
| Brand | Square D |
|---|---|
| Series | QJA |
| Amperage | 70A |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, 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, Visual Trip Indicator |
Product FAQs
5 answersWhich panelboards are compatible with the QJA32070?
This breaker features an I-Line plug-on connection and is designed exclusively for use in Square D I-Line panelboards and switchboards.
Can the QJA32070 be used to replace older Square D breakers?
Yes, this PowerPacT Q-Frame breaker serves as a direct, exact replacement for the obsolete Square D Q23070 legacy circuit breaker.
Are the trip settings on the QJA32070 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time and instantaneous (LI) protection settings are factory-set and cannot be adjusted in the field.
What wire sizes and materials are compatible with the QJA32070 lugs?
The factory-installed lugs accept either aluminum or copper (Al/Cu) conductors, accommodating wire gauges from 4 AWG up to 300 kcmil.
Can this breaker be used in a 208Y/120V electrical system?
Yes, while it has a maximum voltage rating of 240VAC, it is fully compatible with 208Y/120VAC 3-phase systems and maintains its 100kA interrupting capacity at that voltage.
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