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Square D QJL22125 Molded Case Circuit Breaker
- 125A
- 2 Pole
- Unit Mount
Square D
QJL22125
Molded Case Circuit Breaker
Brand
Square D
SKU
QJL22125
Quantity
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Square D QJL22125 - 125A 2 Pole Molded Case Circuit Breaker
New
Quantity
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Description
The QJL22125 belongs to the Square D PowerPacT Q-Frame family, delivering robust overcurrent protection for commercial and industrial environments. This 125A, two-pole MCCB utilizes thermal-magnetic trip technology for reliable long-time and instantaneous defense. Designed for unit-mount configurations, it installs into Square D individual enclosures and panelboards. It also replaces legacy Q22125 and Q2L2125 breakers. Features include a 100kAIC rating at 240VAC and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QJL22125 |
| Series | QJL |
| Amperage | 125A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC |
| Frame Type | QJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Individual Enclosures, Switchboards, Panelboards |
| 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, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
6 answersWhat is the recommended lug torque for the QJL22125 circuit breaker?
The tightening torque for both the line and load lugs is 247.8 lb-in (28 N-m) when using 4 AWG to 300 kcmil aluminum or copper wire.
What types of equipment can the QJL22125 be installed in?
This unit mount PowerPacT Q-frame breaker is designed for use in Square D individual enclosures, switchboards, and panelboards that accept feed-thru Q-frame breakers.
Can I use the QJL22125 in an I-Line panelboard?
No, the QJL22125 is a unit mount breaker with feed-thru lugs on both ends. For I-Line panelboards, you need an I-Line version of the Q-frame breaker, such as the QJA22125, which features a plug-on phase connection.
What is the difference between Square D QBL, QDL, QGL, and QJL breakers?
The third letter in the catalog number indicates the interrupting rating at 240V. The QBL is rated at 10kAIC, the QDL at 25kAIC, the QGL at 65kAIC, and the QJL provides the highest rating at 100kAIC.
Can the QJL22125 be reverse fed?
Yes, standard thermal magnetic PowerPacT Q-frame circuit breakers can be reverse fed. If used as a back-fed main breaker, it must be properly labeled and may require a back-fed main breaker barrier depending on the panelboard requirements.
Is the QJL22125 HACR rated?
Yes, Square D PowerPacT Q-frame circuit breakers are HACR rated, making them suitable for group motor applications in heating, air conditioning, and refrigeration equipment.
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