Square D Q13151021 Molded Case Circuit Breaker
- 15A
- 3 Pole
- Plug-On
Quantity
Square D Q13151021 - 15A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built to support automated safety systems, this three-pole 15A molded case breaker features an integrated 120/240VAC shunt trip. The internal accessory enables remote tripping capabilities for emergency stops or control logic integration. The plug-on configuration mounts easily into legacy Square D Q1 distribution panels. When upgrading or replacing this exact component, the newer QO3151021 serves as the manufacturer-designated substitute.Specifications
| Brand | Square D |
|---|---|
| Series | Q1 |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | Q1 |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Q1 Panelboards |
| Wire Gauge | 14 AWG - 8 AWG (Al/Cu) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Shunt Trip (120/240VAC) |
| Standards | CSA C22.2, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Visual Trip Indicator, Common Trip, Trip-Free Mechanism, Quick-Make/Quick-Break |
Product FAQs
5 answersWhat panelboards accept the Square D Q13151021 circuit breaker?
This breaker is designed specifically for use in legacy Square D Q1 panelboards. It is not compatible with modern QO or Homeline load centers.
What does the 1021 suffix mean on this Square D catalog number?
The 1021 suffix indicates the inclusion of a factory-installed 120/240VAC shunt trip. This feature allows the breaker to be tripped remotely by an external voltage signal.
What wire sizes are compatible with the terminals on the Q13151021?
The terminal lugs are designed to accept wire gauges from 14 AWG to 8 AWG. They are rated for use with both aluminum and copper conductors.
How does the thermal-magnetic trip unit protect the circuit?
The thermal component provides long-time delay protection against sustained overloads, while the magnetic component delivers instantaneous tripping to clear severe short circuits.
Is the Q1 series still in active production?
The Q1 series is classified as a legacy molded case circuit breaker family. These breakers are typically sourced as exact replacements to maintain existing Q1 panelboards rather than for new installations.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 1 review.
- JTJeff T.ReviewingSquare D Q12100 - 100A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/23/18Refurbished breaker
Found the correct breaker, it was very easy to find. Great price and shipped out on time. Definitely recommend this company.