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Review on Siemens Q21540CT 40 Amp Circuit Breaker by Chris Shepherd

Revainrating 5 out of 5

Incredibly fast delivery

I ordered yesterday (Saturday) during this pandemic crisis and I have Prime so it should have been delivered on Monday. To my surprise, it was delivered in less than 24 hours on Sunday. The product is exactly what I ordered and works great.

Pros
  • For Canadian use of the non-CTL version, use the Siemens part number with the suffix "NC". Check the panel wiring diagram to confirm.
Cons
  • weak