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Siemens QT2-4040 40A 2-Pole 240 V Circuit Breaker

★★★★★
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Manufacturer :
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $510.00
Sale price $510.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Siemens QT2-4040 40A 2-Pole 240 V Circuit Breaker - Circuit Breaker

Siemens QT2-4040 40A 2-Pole 240 V Circuit Breaker

Regular price $510.00
Sale price $510.00 Regular price
Unit price
Product description
Shipping

Siemens QT2-4040 40A 2-Pole 240 V Circuit Breaker protects your 240V circuits with precision and reliability.

With a 40 A current rating, a 2-pole design, and a 240 V rating, this Siemens circuit breaker is built to interrupt both hot lines for safe, effective fault clearance in residential or light commercial panels that support QT series breakers.

  • Current rating: 40 A
  • Poles: 2
  • Voltage rating: 240 V
  • Part number: QT2-4040
  • Ideal for protecting 240V branch circuits such as electric dryers, water heaters, space heaters, and central air conditioning
  • Two-pole design ensures both hot conductors disconnect in the event of a fault, reducing shock risk and preventing backfeed to other circuits
  • Designed for straightforward replacement in compatible Siemens panels that accept QT-series breakers

Whether you’re upgrading an older panel or wiring a new 240V circuit, the QT2-4040 delivers dependable protection and clears faults quickly, backed by Siemens engineering and compatibility with QT-series installations.

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Exactly what we needed for a shutdown replacement. No surprises.

Plant · Shutdown

Verified

Good communication and clear updates while the order was processed.

Project · Coordination

Verified

Looks and feels like a proper industrial-grade part. Works as expected.

Service · Field install

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