Free Shipping Over $99
Square D QJA221502 Molded Case Circuit Breaker
- 150A
- 2 Pole
- I-Line
Square D
QJA221502
Molded Case Circuit Breaker
Brand
Square D
SKU
QJA221502
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Square D QJA221502 - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
150A 2 Pole Molded Case Circuit Breaker
175A 2 Pole Molded Case Circuit Breaker
175A 2 Pole Molded Case Circuit Breaker
Description
Built for heavy-duty applications, the Square D QJA221502 delivers reliable thermal-magnetic protection within the PowerPacT Q-Frame series. This breaker mounts into Square D I-Line panelboards and switchboards, providing a secure plug-on connection. It is fully compatible as a replacement for older Q22150 models. Delivering a 100 kAIC interrupting capacity at 240VAC, this two-pole unit includes an AC phase connection, current-limiting capabilities, and a visual trip indicator.Specifications
| Brand | Square D |
|---|---|
| Part Number | QJA221502 |
| 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, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AC (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, Current Limiting, Visual Trip Indicator, 80% Rated, Non-Interchangeable Trip |
Product FAQs
8 answersWhat panelboards are compatible with the QJA221502 circuit breaker?
This PowerPacT Q-frame breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features an I-Line plug-in connection that mounts directly to the panel bus.
How does the I-Line connection on the QJA221502 secure to the panel bus?
The breaker utilizes blow-on type line-side connectors. During a short circuit, the increased magnetic flux causes the plug-on jaws to grasp the panelboard busbars even tighter, ensuring a secure electrical connection under fault conditions.
Can the QJA221502 be used to replace older Square D circuit breakers?
Yes, the PowerPacT Q-frame series is the direct replacement for legacy Square D Q2 series circuit breakers. The QJA221502 specifically replaces 150A, 2-pole Q2 breakers that utilize the I-Line plug-in mounting system.
What does the LI trip function code mean on the QJA221502?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. Both the thermal and magnetic trip settings are fixed on this model.
Are the load-side lugs on the QJA221502 rated for aluminum wire?
Yes, the factory-installed mechanical lugs are dual-rated for both aluminum (Al) and copper (Cu) conductors. They accept a wide wire range from 4 AWG to 300 kcmil, providing flexibility for various field wiring requirements.
Is the QJA221502 suitable for use on 208Y/120V systems?
Yes, while it has a maximum voltage rating of 240VAC, it is fully compatible with 208Y/120VAC systems. It maintains its maximum 100kA interrupting capacity (AIC) across both 208V and 240V applications.
Does the QJA221502 feature a push-to-trip mechanism?
Yes, PowerPacT Q-frame breakers include a push-to-trip button on the faceplate. This allows electricians to manually trip the breaker to verify the mechanical operation of the trip mechanism during routine maintenance.
Is the QJA221502 rated for HVAC applications?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires dedicated circuit protection.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.