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Square D QJA221504 Molded Case Circuit Breaker
- 150A
- 2 Pole
- I-Line
Square D
QJA221504
Molded Case Circuit Breaker
Brand
Square D
SKU
QJA221504
Quantity
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Square D QJA221504 - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
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Square D QJA221504 - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Part Number | QJA221504-R |
| Series | QJA |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC |
| Frame Type | Q Frame |
|---|---|
| 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 | Phase Connection BC (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | ANCE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Square D QJA221504 - 150A 2 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Part Number | QJA221504-R |
| Series | QJA |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC |
| Frame Type | Q Frame |
|---|---|
| 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 | Phase Connection BC (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | ANCE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator |
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Description
Providing robust overcurrent defense, the Square D QJA221504 is a 150A thermal-magnetic circuit breaker from the PowerPacT Q-Frame family. This device is engineered to plug into Square D I-Line panelboards and switchboards. It also functions as an exact substitute for discontinued Q22150 breakers. Featuring a 100 kAIC rating at 240VAC, this two-pole MCCB comes with a factory-configured BC phase connection, fixed LI trip functions, and a highly visible Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QJA221504-R |
| Series | QJA |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC |
| Frame Type | Q Frame |
|---|---|
| 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 | Phase Connection BC (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | ANCE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
8 answersWhat panelboards are compatible with the QJA221504 circuit breaker?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It will not fit in standard QO, Homeline, or NQ/NF series panels.
What does the "4" suffix in the QJA221504 catalog number indicate?
In Square D I-Line nomenclature, the "4" suffix indicates that this 2-pole breaker is factory-configured for a BC phase connection on the panelboard busbar.
What does the "J" in the QJA221504 catalog number indicate?
In the PowerPacT Q-Frame nomenclature, the "J" designates the interrupting rating tier. It signifies a high interrupting capacity of 100kA at 240VAC.
Are the trip settings on the QJA221504 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the Long-Time (thermal) and Instantaneous (magnetic) trip functions are factory-set and cannot be adjusted in the field.
Can the QJA221504 replace older Square D Q2 series breakers?
Yes, Schneider Electric designed the PowerPacT Q-Frame circuit breakers as direct replacements for legacy Square D Q2 Series devices, provided the pole count, amperage, and mounting style match.
How is the QJA221504 breaker secured to the I-Line busbar?
The breaker features a plug-on line-side jaw connection. During installation, the integrated mounting bracket hooks into the panel pan, and a retaining screw is tightened to secure the breaker firmly against the busbar stack.
Does the QJA221504 require line-side wiring?
No. Because it is an I-Line breaker, the line side connects directly to the panelboard busbar via plug-on jaws. Only the load side requires wire termination using the provided mechanical lugs.
What safety precautions are required when installing this I-Line breaker?
Always de-energize the panelboard before installation. Ensure the breaker is in the OFF position, align the mounting bracket with the pan slots, and use a screwdriver to ratchet the breaker onto the busbar stack smoothly without forcing it.
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