Square D QJL32110 Molded Case Circuit Breaker
- 110A
- 3 Pole
- Unit Mount
Quantity
Square D QJL32110 - 110A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built to protect circuits against overloads and short circuits, the Square D QJL32110 is a 110A, 3-pole molded case circuit breaker rated for 208Y/120VAC and 240VAC. It provides 100kA interrupting capacity at both voltages. The QJL series breaker has a Q Frames physical frame and unit mounting. Its fixed thermal-magnetic trip provides long-time and instantaneous protection. Approvals include CSA, IEC, NOM and UL.Specifications
| Brand | Square D |
|---|---|
| Part Number | QJL32110 |
| Series | QJL |
| Amperage | 110A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC |
| Frame Type | QJL |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | Square D QO Load Centers, NQ Panelboards, NQOD Panelboards |
| Wire Gauge | 4 AWG-300 kcmil |
| 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 | Alarm Switch, Auxiliary Switch, Padlock Attachment, Shunt Trip, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | 40C to 70C |
| Construction Features | HACR Rated, Non-Interchangeable Trip |
Product FAQs
9 answersHow should I use the 110A rating when selecting the Square D QJL32110?
The 110A rating is the breaker's rated current. Use it when evaluating the circuit load and conductor overcurrent protection, rather than treating the instantaneous trip function as the circuit's current rating.
What circuit voltages is this breaker rated for?
The breaker is rated for 208Y/120VAC and 240VAC. Match the circuit voltage to one of these ratings when selecting it for an AC installation.
How do I check whether its interrupting rating is sufficient?
Its interrupting rating is 100kA at 208Y/120VAC and 100kA at 240VAC. Compare the available fault current at the installation point with the rating for the circuit voltage; the available fault current must not exceed that interrupting rating.
What conductor sizes can I terminate in the box lugs?
The box lugs accept conductors from 4 AWG through 300 kcmil. Check both the conductor's ampacity and its size when selecting wiring, since acceptance by the lug does not by itself determine suitable conductor ampacity.
How are the three poles used, and does the breaker have a neutral connection?
Use the three poles for the phase conductors of a three-phase circuit. A neutral connection is not applicable to this breaker, so account for any circuit neutral separately in the wiring layout.
What dimensions and mounting style should I account for during installation planning?
The breaker uses unit mounting and measures 6.47 in high, 4.50 in wide, and 3.93 in deep. Use these body dimensions and the mounting style when planning the mechanical layout and installation space.
What does the HACR rating mean for equipment protection?
HACR refers to heating, air-conditioning, and refrigeration applications. The HACR rating is relevant when equipment requirements call for this type of circuit breaker; also check the circuit's current, voltage, and available fault current.
Which circuit breaker standards should I check against project requirements?
The applicable standards are CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, and UL 489. Use these when reviewing project requirements for molded case circuit breaker construction and performance.
Can I adjust the thermal or magnetic trip settings?
The thermal and magnetic trip settings are fixed and cannot be adjusted. The thermal function provides long-time overload protection, while the magnetic function provides instantaneous short-circuit protection. Use fixed trip behavior when planning protection coordination.
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