---
product_id: 23213011
title: "40 Amp Double-Pole and (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker"
brand: "siemens"
price: "$2273"
currency: MXN
in_stock: true
url: https://www.desertcart.mx/products/23213011-40-amp-double-pole-and-2-15-amp-single-pole
store_origin: MX
region: Mexico
---

# 10k AIC interrupt rating Compatible with Siemens EQ & Ultimate panels Plug-in mount for easy installation 40 Amp Double-Pole and (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker

**Brand:** siemens
**Price:** $2273
**Availability:** ✅ In Stock

## Summary

> ⚡ Break limits, not circuits — Siemens Triplex for the savvy pro!

## Quick Answers

- **What is this?** 40 Amp Double-Pole and (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker by siemens
- **How much does it cost?** $2273 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/23213011-40-amp-double-pole-and-2-15-amp-single-pole)

## Best For

- siemens enthusiasts

## Why This Product

- Trusted siemens brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug-In Convenience:** Quick, tool-free installation for busy pros 🔌
- • **Certified Reliability:** UL Listed, CSA Certified, HACR rated for peace of mind ✅
- • **Powerful 10k AIC Rating:** Handles high fault currents with confidence ⚡
- • **Versatile Compatibility:** Fits Siemens EQ, Ultimate, ITE & Gould load centers 🏢
- • **Space-Saving Triplex Design:** One double pole + two single poles in just 2 panel spaces 🔲

## Overview

The Siemens Q21540CT Triplex Circuit Breaker combines a 40 Amp double pole and two 15 Amp single poles in a compact, plug-in design. Rated for 10,000 AIC and compatible with multiple Siemens load centers, it offers certified safety and space-saving efficiency for residential and commercial electrical systems.

## Description

SIEMENS

## Features

- Siemens space saving, plug in circuit breakers are intended for use in Siemens EQ, Siemens Ultimate, ITE, and Gould load centers and meter combinations that are rated to accept type QT breakers
- For Canadian applications Non-CTL version, use Siemens catalog number with “NC” suffix. Check panel wiring diagram to confirm.
- Triplex 1/2 in. frame
- Triplex circuit breaker features one 40 Amp double pole and two 15 Amp single pole circuit breakers
- Requires 2-panel spaces
- 10k AIC series rating
- HACR rated
- CSA Certified
- UL Listed
- Designed for residential/commercial applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SIEMENS |
| Current Rating | 15 Amps |
| Circuit Breaker Type | Standard |
| Mounting Type | Plug-In Mount |
| Number Of Poles | 1 |
| UPC | 783643194977 |
| Manufacturer | Siemens |
| Global Trade Identification Number | 00783643194977 |
| Part Number | Q21540CT |
| Item Weight | 8 ounces |
| Item model number | Q21540CT |
| Is Discontinued By Manufacturer | No |
| Color | Black |
| Material | Copper |
| Voltage | 240 Volts |
| Item Package Quantity | 1 |
| Included Components | SIEQ21540CT |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Siemens strongly recommends against the use of "used" breakers. The installation of used breakers in a Siemens panel will void the warranty on the panel. Siemens does not sell used breakers and has not approved any 3rd party sellers to do so. |

## Product Details

- **Brand:** SIEMENS
- **Current Rating:** 15 Amps
- **Circuit Breaker Type:** Standard
- **Mounting Type:** Plug-In Mount
- **Number Of Poles:** 1

## Images

![40 Amp Double-Pole and (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker - Image 1](https://m.media-amazon.com/images/I/81Lt4yJ0MBL.jpg)

## Frequently Bought Together

- Siemens 40 Amp Double-Pole and (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker
- Siemens Q24040CT2 Two 40-Amp Double Pole Circuit Breaker
- Siemens Q22020CT2 Two 20-Amp Double Pole Circuit Breaker

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**Shop now:** [https://www.desertcart.mx/products/23213011-40-amp-double-pole-and-2-15-amp-single-pole](https://www.desertcart.mx/products/23213011-40-amp-double-pole-and-2-15-amp-single-pole)

---

*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-02-04*