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Square D QJA221501 Molded Case Circuit Breaker
- 150A
- 2 Pole
- I-Line
Square D
QJA221501
Molded Case Circuit Breaker
Brand
Square D
SKU
QJA221501
Quantity
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Square D QJA221501 - 150A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial distribution, the Square D QJA221501 is a thermal-magnetic molded case circuit breaker from the PowerPacT Q-Frame family. Designed for seamless integration, this unit installs into Square D I-Line panelboards and switchboards. It also serves as an exact replacement for legacy Q22150 breakers. Rated for 100 kAIC at 240VAC, this two-pole breaker features a factory-configured AB phase connection, fixed LI trip functions, and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QJA221501 |
| 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 |
|---|---|
| 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AB (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, High Interrupting Capacity |
Product FAQs
7 answersWhat panelboards are compatible with the QJA221501 breaker?
This I-Line style plug-in breaker is designed exclusively for Square D I-Line panelboards and switchboards. It will not fit QO, Homeline, NQ, or NF series panels.
What does the "J" in the QJA221501 catalog number signify?
The "J" designates the interrupting rating for this PowerPacT Q-Frame breaker. It indicates a high interrupting capacity of 100kA at 240VAC.
Are there alternative interrupting ratings available for this 150A 2-pole breaker?
Yes. If your system does not require a 100kA rating, the Square D Q-Frame series also includes the QBA (10kA), QDA (25kA), and QGA (65kA) models for 240VAC applications.
What does the "1" suffix at the end of the QJA221501 part number indicate?
The "1" suffix specifies the phase connection for the I-Line plug-on jaws. For a 2-pole breaker, this indicates an AB phase connection to the panelboard bus.
What wire sizes do the load-side lugs on this breaker accept?
The mechanical lugs on the QJA221501 are rated to accept 4 AWG to 300 kcmil aluminum or copper conductors. The line side utilizes the I-Line plug-on connection.
Can the QJA221501 be reverse fed in an I-Line panelboard?
Yes, Square D PowerPacT Q-Frame circuit breakers are UL listed for both forward and reverse-fed applications.
What type of protection does the LI trip unit on this breaker provide?
The thermal-magnetic trip unit features fixed Long-Time (L) protection to handle sustained overloads and fixed Instantaneous (I) protection to clear short-circuit faults.
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