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DC Miniature Circuit Breaker, 2 Pole 1000V 40 Amp Isolator for Solar PV System, Thermal Magnetic Trip, DIN Rail Mount, Chtaixi DC Disconnect Switch C40

  • Based on 911 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Nov 24
Order within 19 hours and 10 seconds
Available payment plans shown during checkout

Size: 40A


Features

  • FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.
  • FAST TRIP: The electromagnetic trip system can trip immediately when the circuit is short-circuited to protect the safety of the circuit.
  • ARC EXTINGUISHING: DC arc extinguishing is more difficult than AC. This DC mini circuit breaker has a magnetic system to assist arc extinguishing.
  • APPLICATION: Used in DC power system, ship electric power system, solar photovoltaic system, or other DC system.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.

Brand: CHTAIXI


Current Rating: 40 Amps


Voltage: 1000 Volts


Product Dimensions: 1.42"D x 2.95"W x 31.5"H


Circuit Breaker Type: Standard


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1.42 x 2.95 x 3.15 inches; 6.35 ounces


Item model number ‏ : ‎ DZ47Z-63


Date First Available ‏ : ‎ August 8, 2021


Manufacturer ‏ : ‎ CHTAIXI


Best Sellers Rank: #7,705 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #3 in Miniature Circuit Breakers


#3 in Miniature Circuit Breakers:


Customer Reviews: 4.7 4.7 out of 5 stars 911 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Super Unit to Make a Safer Solar Setup
Size: 63A
i'm using these between a set of solar panels wired in series-parallel and what has quickly become my most favorite compact Victron Solar Charge Controller, especially at its more recent favorable price (this one: https://amzn.to/3JhCLgR). I have found these miniature circuit breakers do the job perfectly: they are easy to install using the provided DIN rail and screws, easy to slide on/off or clip on/off to the rail while working with the cabling, and while a few other reviewers have mentioned cable grip, I have been fortunate, and have found the breaker to grip the cables well. It is important when purchasing breakers like these to consider size matching to ensure that the gauge of cable being used is an appropriate size for not only the electrical requirements of the system, but also for the cable slots in both the charge controller and the circuit breaker. PRO TIP: it is also important to carefully strip the wire ends to a proper length. The goal is adequate exposure to the terminals and terminal clamps, but not more than that. With both these breakers and the Victron charge controller, I was able to use 6AWG cable, stripped back about one-half inch, and the cables seated cleanly and firmly. Overall, not only is it a best-practice to safeguard your solar setup with proper breakers and/or fuses, it also makes it more convenient, safer, and provides some peace-of-mind when you need to work with it. Enjoy! ... show more
Reviewed in the United States on April 13, 2024 by J

  • Nice product!
Size: 20A
Timely shipping and great product, thank you!
Reviewed in the United States on May 25, 2024 by JDA

  • Quality disconnect
Size: 40A
Item is very well constructed and functions properly
Reviewed in the United States on March 29, 2024 by mgtd2000

  • Still working on my project. Waiting to install
Size: 63A
Shipping was fast and disconnected was as ordered
Reviewed in the United States on June 3, 2024 by Joe Key

  • Great for Solar
Size: 32A
Great addition for a safety disconnect on my solar panels on my RV. Installs easily into fuse box found on Amazon.
Reviewed in the United States on March 27, 2024 by David Artinian David Artinian

  • Works Great!!
Size: 32A
Works Great!!
Reviewed in the United States on April 10, 2024 by Fuzzymug

  • Electrical fixture
Size: 63A
What's out this? How? I had no electricity
Reviewed in the United States on April 7, 2024 by Vincent Miranda

  • Shuts off and on easily
Size: 63A
it is the perfect little breaker for a solar power system so here’s another product I give thumbs up to, and say you should try it on your system
Reviewed in the United States on March 2, 2024 by monte

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