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Siemens Q21540CT - 15/40A Triplex Miniature Circuit Breaker

Brand Siemens
SKU Q21540CT

Siemens Q21540CT - 15/40A Triplex Miniature Circuit Breaker

Brand Siemens
SKU Q21540CT
Select Item Condition
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Siemens Q21540CT - 15/40A Triplex Miniature Circuit Breaker

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$42.92 In stock

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Description
Part of the QT series, the Siemens Q21540CT is a residential triplex breaker designed to maximize panel density. It provides two 15A single-pole circuits and one 40A double-pole common-trip circuit in a two-space footprint. This plug-on unit installs into Siemens EQ, PL, ES, and Ultimate load centers. Featuring a CTL rejection clip, it serves as an exact replacement for the MP21540CT. Rated for 10kAIC at 120/240V, it utilizes thermal-magnetic technology for reliable protection.

Specifications

Brand Siemens
Series QT
Part Number Q21540CT
Amperage 15/40A
Voltage 120/240VAC
Poles 4
Phase 1
AIC Rating 10kA @ 120/240VAC
Special Classification Triplex
Mounting Style Plug-On
Terminal Type Lugs
For Use With Siemens Load Centers (Type EQ, PL, ES, Ultimate)
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Wire Gauge 15A Poles: 14-6 AWG (Cu), 12-6 AWG (Al); 40A Poles: 8-6 AWG (Cu), 8-4 AWG (Al)
Max Wire 6 AWG (Cu), 4 AWG (Al)
Min Wire 14 AWG
Available Options Padlock Attachment
Standards HACR, SWD (15A Poles), UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Insta-Wire, CTL Rejection

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