Siemens Q22040CT 20/40A Triplex Miniature Circuit Breaker
- 20/40A
- 2 Pole
- Plug-On
Quantity
Siemens Q22040CT - 20/40A Triplex Miniature Circuit Breaker
New
Quantity
Quantity
Siemens Q22040CT - 20/40A Triplex Miniature Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q22040CT |
| Series | QT |
| Amperage | 20/40A |
| 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) [20A]; 8-6 AWG (Cu), 8-4 AWG (Al) [40A] |
| Max Wire | 4 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 | CSA C22.2 No. 5, HACR Rated, SWD Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Quantity
Siemens Q22040CT - 20/40A Triplex Miniature Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | Q22040CT-R |
| Series | QT |
| Amperage | 20/40A |
| 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) [20A]; 8-6 AWG (Cu), 8-4 AWG (Al) [40A] |
| Max Wire | 4 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 | CSA C22.2 No. 5, HACR Rated, SWD Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Description
Part of the QP family, this 20/40A triplex breaker adds multiple circuits without requiring a larger enclosure. It features two 20A outer poles and a 40A inner double-pole. Engineered for plug-on installation, it fits into Siemens CTL and Murray load centers. It also replaces the older MP22040CT model for maintenance applications. Delivering 10 kAIC at 120/240VAC, the unit includes SWD-rated 20A poles for switching fluorescent lighting loads. It utilizes thermal-magnetic protection.Specifications
| Brand | Siemens |
|---|---|
| Part Number | Q22040CT |
| Series | QT |
| Amperage | 20/40A |
| 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) [20A]; 8-6 AWG (Cu), 8-4 AWG (Al) [40A] |
| Max Wire | 4 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 | CSA C22.2 No. 5, HACR Rated, SWD Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
Product FAQs
7 answersWhat load centers are compatible with the Siemens Q22040CT?
The Q22040CT is a Type QT breaker designed for use in Siemens CTL load centers and Murray load centers that accept half-inch frame breakers. It is not compatible with non-CTL panels.
Can the Siemens Q22040CT replace older Murray breakers?
Yes, this breaker is a direct replacement for the obsolete Murray MP22040CT triplex breaker. Siemens has cross-listed Type QT breakers for use in compatible Murray load centers.
How many panel spaces does the Q22040CT require?
This triplex breaker requires two standard 1-inch panel spaces to provide two 120V 20A single-pole circuits and one 240V 40A double-pole circuit.
How are the circuits arranged on the Q22040CT breaker?
The breaker features two 20A single-pole circuits on the outer positions for 120V loads, and one 40A double-pole circuit in the center for 240V loads.
What wire sizes are accepted by the terminals on the Q22040CT?
The 20A single-pole terminals accept 14-8 AWG copper or 12-8 AWG aluminum wire. The 40A double-pole terminals accept 8-6 AWG copper or 8-4 AWG aluminum wire.
Are the 20A single-pole circuits on the Q22040CT SWD rated?
Yes, the 20A outer poles are SWD (Switching Duty) rated, which allows them to be used for switching 120V fluorescent lighting loads.
Does the 40A double-pole circuit feature a common trip?
Yes, the inner 40A double-pole circuit has an internal common trip mechanism. If an overload or short circuit occurs on either leg of the 240V circuit, both legs will trip simultaneously.
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