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Siemens Q21515 15/15A Quadplex Miniature Circuit Breaker
- 15/15A
- 2 Pole
- Plug-On
Siemens
Q21515
15/15A Quadplex Miniature Circuit Breaker
Brand
Siemens
SKU
Q21515
Quantity
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Siemens Q21515 - 15/15A Quadplex Miniature Circuit Breaker
Re-Certified
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Siemens Q21515 - 15/15A Quadplex Miniature Circuit Breaker
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Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q21515 |
| Series | QT |
| Amperage | 15/15A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers (CTL), Murray Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Standards | CSA C22.2 No. 5, HACR Rated, SWD Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Space Saver, HACR Rated, Insta-Wire, Non-Common Trip |
Sold out
Quantity
Siemens Q21515 - 15/15A Quadplex Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q21515-R |
| Series | QT |
| Amperage | 15/15A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers (CTL), Murray Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Standards | CSA C22.2 No. 5, HACR Rated, SWD Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Space Saver, HACR Rated, Insta-Wire, Non-Common Trip |
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Description
Engineered for residential applications, the Siemens Q21515 quadplex breaker fits into a standard two-inch space. It provides four 15A poles of protection, effectively doubling the density of your electrical distribution system without requiring a larger enclosure. This plug-on unit installs into Siemens CTL load centers and Murray panels, serving as an exact replacement for the legacy MP21515CT.Specifications
| Brand | Siemens |
|---|---|
| Part Number | Q21515-R |
| Series | QT |
| Amperage | 15/15A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers (CTL), Murray Load Centers |
| Wire Gauge | 14-8 AWG (Cu), 12-8 AWG (Al) |
| Max Wire | 8 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Special Classification | Quadplex |
|---|---|
| Available Options | Padlock Attachment |
| Standards | CSA C22.2 No. 5, HACR Rated, SWD Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Space Saver, HACR Rated, Insta-Wire, Non-Common Trip |
Product FAQs
7 answersWhat load centers are compatible with the Siemens Q21515 quadplex breaker?
This plug-on quadplex breaker is designed for use in Siemens CTL (Circuit Total Limiting) load centers and Murray electrical panels.
Can the Siemens Q21515 replace older Murray quad breakers?
Yes, the Siemens Q21515 serves as a direct, exact replacement for the legacy Murray MP21515CT quadplex circuit breaker.
What is the configuration of the 15A circuits on this quadplex breaker?
The Q21515 features a space-saving quad design that combines two 15A single-pole breakers on the outside and one 15A double-pole breaker on the inside, fitting into a standard two-inch panel space.
Does this breaker require a CTL panel for installation?
Yes, the Q21515 is a Class CTL (Circuit Total Limiting) breaker. It is designed to install only in load center slots that are approved to accept tandem or quadplex breakers.
What type of trip functions does the Q21515 include?
This thermal-magnetic breaker includes fixed long-time and instantaneous trip functions to provide reliable overload and short-circuit protection.
Are the outer poles on the Q21515 common trip?
No, the outer 15A single-pole circuits operate independently with a non-common trip mechanism, while the inner 2-pole circuit provides common trip protection for 240V loads.
Is the Siemens Q21515 breaker HACR and SWD rated?
Yes, this breaker is HACR rated for use with heating, air conditioning, and refrigeration equipment, and SWD rated for switching fluorescent lighting loads.
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