Siemens Q31500S01 Miniature Circuit Breaker
- 15A
- 3 Pole
- Plug-On
Quantity
Siemens Q31500S01 - 15A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Engineered for remote tripping applications, this 15-amp thermal-magnetic breaker includes a factory-installed 120VAC shunt trip mechanism. It installs into standard Siemens load centers and panelboards, serving as a reliable replacement for the legacy MP315ST. Delivering a 10kAIC rating at 240VAC, the unit features Insta-Wire connectors for faster installation and carries HACR and SWD ratings for commercial HVAC or switching duty.Specifications
| Brand | Siemens |
|---|---|
| Series | Q |
| Amperage | 15A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Panelboards |
| Wire Gauge | 14-6 AWG (Cu/Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Shunt Trip 120VAC (Factory Installed) |
| Standards | UL 489, CSA C22.2 No. 5, HACR Rated, SWD |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Insta-Wire |
Product FAQs
6 answersWhat does the 00S01 suffix mean on the Siemens Q31500S01?
The 00S01 suffix indicates that this breaker is equipped with a factory-installed 120VAC shunt trip. This accessory allows the breaker to be tripped remotely using a 120V control signal, which is commonly required for emergency shut-off systems.
What legacy circuit breaker does the Q31500S01 replace?
The Siemens Q31500S01 serves as a direct replacement for the legacy Murray MP315ST circuit breaker.
How much panel space does the Q31500S01 require?
As a 3-pole QP frame breaker, it requires three standard 1-inch spaces in a compatible Siemens load center or panelboard.
Is this breaker suitable for HVAC equipment?
Yes, the Q31500S01 is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires a 15A, 3-pole breaker.
How does the remote tripping function work on this breaker?
The built-in shunt trip mechanism is activated by applying 120VAC to the accessory control wires. When the control circuit is energized via an emergency stop button or fire alarm relay, it mechanically trips the breaker to open the primary contacts.
Does the shunt trip accessory provide ground fault or arc fault protection?
No, the 120VAC shunt trip is strictly for remote relay-driven tripping. The Q31500S01 provides standard thermal-magnetic overload and short-circuit protection, but it does not include GFCI or AFCI functionality.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 47 reviews.
- CGCrocefissa G.Verified BuyerReviewingSiemens Q115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Quick delivery and great price.
The circuit breakers are at a great cost.
- JBJason B.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Great experience
The product was exactly what I needed and it arrived on time.
- DQDon Q.Verified BuyerReviewingSiemens Q3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Siemens breaker
Great customer experience, great prices and fast shipping... Definitely will be buying her again.
- CSChristopher S.Verified BuyerRated 5 out of 5 stars8/12/26Siemens 60
Perfect new condition
- GSGeorge S.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/4/26Great service
Every time I call or go online you have the parts I'm looking for.