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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 1,460 reviews
Condition: New
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Availability: In Stock.
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Arrives Sunday, Mar 8
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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: #10,908 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 1,460 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Mar 8

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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Leasing options through Acima may also be available during checkout.

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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

  • work well for me
Size: 63A
The brand has plenty of option and good quality. i have no complants. Have bought several for my Solar systems.
Reviewed in the United States on October 29, 2025 by Projects

  • 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

  • Encantada
Size: 63A
Útil para instalacion
Reviewed in the United States on November 19, 2025 by Yurima

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

  • Excelente
Size: 25A
Buenísimo
Reviewed in the United States on November 2, 2025 by CAKES BODY de baja calidad

  • Exelente
Size: 50A
Super bueno
Reviewed in the United States on October 27, 2025 by Daylin Bosque Reina

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