Square D Q222150BCH Molded Case Circuit Breaker
- 150A
- 2 Pole
- I-Line
Quantity
Square D Q222150BCH - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Serving as a robust solution for commercial power systems, this 150A molded case circuit breaker delivers dependable thermal-magnetic protection. It safeguards critical infrastructure using fixed long-time and instantaneous trip functions. Designed for Square D I-Line panelboards, the unit features a dedicated BC phase connection for proper busbar alignment.Specifications
| Brand | Square D |
|---|---|
| Part Number | Q222150BCH |
| Series | Q2 |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | Q222-H |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line 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, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | B & C Phase Connection |
| Standards | CSA C22.2 No. 5, NEMA AB 1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Visual Trip Indicator, HACR Rated, High Interrupting Capacity, Phase Connection BC |
Product FAQs
7 answersCan I install the Q222150BCH in a standard Square D QO load center or NQ panelboard?
No. This is an I-Line style plug-in breaker designed specifically for Square D I-Line industrial panelboards and switchboards. It will not fit in standard residential QO load centers or NQ panelboards.
How does the phase connection work for the Q222150BCH?
The "BC" in the catalog number indicates this breaker is factory-configured to connect specifically to the B and C phases of the I-Line busbar. When planning your panel layout, ensure the B and C phase slots are available for proper load balancing.
What type of conductors can be used with the Q222150BCH lugs?
The factory-installed lugs are dual-rated for both aluminum and copper conductors, accepting wire sizes from 4 AWG up to 300 kcmil. Ensure you apply the correct torque specifications listed on the breaker faceplate during installation.
Can I adjust the trip settings on the Q222150BCH?
No. This breaker features a non-interchangeable thermal-magnetic trip unit with fixed Long-Time and Instantaneous (LI) functions. The trip settings cannot be adjusted in the field.
Is the Q222150BCH a current production model?
The Q222-H frame is part of Square D's legacy Q-Frame series of molded case circuit breakers. While it is considered a legacy profile, it serves as a direct replacement for existing Q222150BCH breakers in I-Line panelboards without requiring hardware modifications.
Does the Q222150BCH require a separate mounting kit for installation?
No. As an I-Line breaker, it features a plug-in design where the jaws engage directly with the panelboard bus assembly. The breaker includes the necessary integrated mounting bracket to secure it to the panel backpan.
What is the maximum fault current the Q222150BCH can safely interrupt?
This breaker provides a maximum interrupting rating of 22kA at 240V AC. You must verify that the available fault current at the installation point does not exceed this threshold to maintain proper safety and code compliance.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 8 reviews.
- MEMichael E.Verified BuyerReviewingSquare D Q221150AC - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/28/26breaker purchase
delivered on time and quality was as advertised
- MWmakalita w.Verified BuyerReviewingSquare D Q232150 - 150A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/18/26Prompt service.
Well packaged
- GSGreg S.Verified BuyerReviewingSquare D Q232200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/29/25Great Job
Whenever I need a breaker and my local distributor can't handle or get what I need, Superbreakers has always come through for us.
- AWAllen W.ReviewingSquare D Q232175 - 175A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/17/22Great condition
The breakers were in great condition. The serve was also great.
- JCJim C.ReviewingSquare D Q232200 - 200A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars1/13/22Great Service
My order was received fast. The packaging was perfect. The quality of the product was what was expected.