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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 1,413 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Nov 17
Order within 8 hours and 19 minutes
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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


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


Circuit Breaker Type: Standard


Mounting Type: DIN Rail Mount


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: #8,816 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2 in Miniature Circuit Breakers


#2 in Miniature Circuit Breakers:


Customer Reviews: 4.6 4.6 out of 5 stars 1,413 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 17

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good quality, fair pricing
Size: 20A
I have 4 of these breakers (varying amps) incorporated into my solar setup in ny camper. They work well for disconnecting solar panels from charge controllers etc. I have load tested 3 of the 4 I have in use and found they broke circuit within 5-12% of the rated amps. They work well for me
Reviewed in the United States on August 29, 2025 by riorust

  • Easy to install
Size: 63A
We installed these to be a quick disconnect for our solar panels. It's doing It's job and was easy to install.
Reviewed in the United States on September 24, 2025 by Holly Brown Holly Brown

  • Good quality
Size: 63A
Use for my solar system, they have worked great for a year now.
Reviewed in the United States on August 23, 2025 by Scott

  • Works as it should
Size: 63A
I bought this as a part of my solar generator. It was very easy to set up and works well. Overall it is a good product it just feels cheaply made. The housing separated a little when I tightened the screws.
Reviewed in the United States on June 29, 2025 by Thomas Gapinski

  • Decent breaker
Size: 32A
It's my first high voltage DC breaker and very happy to report it works well.
Reviewed in the United States on September 7, 2025 by Timmayyy

  • My opinion
Size: 63A
Works perfectly
Reviewed in the United States on October 6, 2025 by Maikel Gonzalez Brito Maikel Gonzalez Brito

  • Excellent
Size: 63A
Perfecto
Reviewed in the United States on October 8, 2025 by Yoslayne Nunez

  • Better than the janky vevor breaker.
Size: 63A
I replaced another brands circuit breaker that failed at 450 volts and less than 15 amps that was rated for 1000 volts and 30 amps with this one and so far it seems to be fine, the extra amp rating is hopefully good enough to not melt another breaker.
Reviewed in the United States on August 13, 2025 by Review lord

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