Siemens Q21530CT 15/30A Triplex Miniature Circuit Breaker
- 15/30A
- 2 Pole
- Plug-On
Quantity
Siemens Q21530CT - 15/30A Triplex Miniature Circuit Breaker
Re-Certified
Quantity
Quantity
Siemens Q21530CT - 15/30A Triplex Miniature Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q21530CT |
| Series | QT |
| Amperage | 15/30A |
| 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 (Type EQ, PL, ES, Ultimate) |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (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 |
| Special Classification | Triplex |
|---|---|
| Available Options | Padlock Attachment |
| Standards | HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Quantity
Siemens Q21530CT - 15/30A Triplex Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q21530CT-R |
| Series | QT |
| Amperage | 15/30A |
| 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 (Type EQ, PL, ES, Ultimate) |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (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 |
| Special Classification | Triplex |
|---|---|
| Available Options | Padlock Attachment |
| Standards | HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Description
Part of the QT series, this 15/30A triplex breaker is engineered for residential applications requiring maximum circuit density. It combines two 15A single-pole and one 30A double-pole circuit into a two-pole footprint. The plug-on design installs into Siemens EQ, PL, ES, and Ultimate load centers. It serves as a replacement for the older MP21530CT. Rated for 10kAIC at 120/240VAC, the unit features a common trip on the center 30A pair. It is HACR rated and SWD rated on the 15A poles.Specifications
| Brand | Siemens |
|---|---|
| Part Number | Q21530CT-R |
| Series | QT |
| Amperage | 15/30A |
| 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 (Type EQ, PL, ES, Ultimate) |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (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 |
| Special Classification | Triplex |
|---|---|
| Available Options | Padlock Attachment |
| Standards | HACR, SWD, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
6 answersWhich load centers are approved for the Siemens Q21530CT triplex breaker?
This type QT breaker is approved for Siemens EQ, PL, ES, and Ultimate series load centers designed to accept half-inch frame breakers. It is also backward compatible with legacy ITE and Gould panels that list type QT breakers on their wiring diagram.
How many panel spaces are required to install the Q21530CT?
This space-saving triplex breaker requires two standard 1-inch panel spaces. It combines two independent 15A single-pole circuits and one 30A double-pole circuit into a compact two-pole footprint.
Is the Q21530CT a CTL or non-CTL type breaker?
The Q21530CT is a CTL (Circuit Total Limiting) type QT breaker. It is designed for installation in load centers with notched bus bars that are specifically rated to accept tandem or triplex breakers.
Are the circuits on this breaker HACR and SWD rated?
Yes, the entire breaker is HACR rated for use with heating, air conditioning, and refrigeration equipment. Additionally, the outer 15A single-pole breakers are SWD rated for switching 120V fluorescent lighting loads.
Does the 30A double-pole section feature a common trip mechanism?
Yes, the inner 30A double-pole breaker utilizes a common trip. If one leg of the 240V circuit experiences an overload or short circuit, both poles will trip simultaneously to safely disconnect the load.
Can the Siemens Q21530CT be used to replace older Murray breakers?
Yes, this Siemens QT breaker is the direct manufacturer replacement for the obsolete Murray MP21530CT triplex breaker.
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