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DC Miniature Circuit Breaker, 2 Pole 1000V 20 Amp Isolator for Solar PV System, Thermal Magnetic Trip, DIN Rail Mount, Chtaixi DC Disconnect Switch C20

  • Based on 1,194 reviews
Condition: New
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$14.97 Why this price?
4th of July Sale · 32% off was $21.99

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Availability: In Stock.
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Arrives Monday, Jul 6
Order within 10 hours and 29 minutes
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Size: 20A


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: 20 Amps


Product Dimensions: 2.95"D x 1.42"W x 3.15"H


Circuit Breaker Type: Standard


Mounting Type: DIN Rail Mount


Brand Name: CHTAIXI


Model: DZ47Z-63


Part Number: 47Z63-2P1000


Manufacturer: CHTAIXI


Item Weight: 6.35 Ounces


Current Rating: 20 Amps


Circuit Breaker Type: Standard


Mounting Type: DIN Rail Mount


Number of Poles: 2


Voltage: 1000 Volts


Item Dimensions D x W x H: 2.95"D x 1.42"W x 3.15"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 6

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.

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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

  • The best DC breaker I've had so far.
Size: 20A
These heavy-duty DC breakers cost slightly more than their competitors but seem less prone to arcing at high voltages. Previous DC breakers have not been rated for voltages as high as these and most of them have eventually failed, usually just the negative pole. I'm really pleased with these!
Reviewed in the United States on April 20, 2026 by Robert A.

  • No issues
Size: 20A
I have one installed and working for several years in a shed, for a DIY solar system as a PV input breaker switch, with no issues. Just bought another one.
Reviewed in the United States on April 28, 2026 by Nick

  • A little bit flimsy
Size: 20A
When tightening the wires down the breaker housing starts to open slightly along the plastic assembly line.
Reviewed in the United States on August 28, 2022 by Mel R.

  • Amazon mi mejor opción
Size: 20A
Son exactamente los que necesitan para conectar los ecoflo para mi fue muy útil los recomiendo
Reviewed in the United States on March 30, 2026 by Hilda Espinosa consuegra

  • Protect those panels. Protect those panels.
Size: 20A
Used this on a portable power station build to protect my solar panels. Everything working as it should.
Reviewed in the United States on April 30, 2025 Reviewed in the United States on April 30, 2025 by Krater

  • Very inexpensive Very inexpensive
Size: 20A
These breakers were perfect for my solar install. Nice that the DIN rail was included. They seem to work well so far.
Reviewed in the United States on February 2, 2024 Reviewed in the United States on February 2, 2024 by C. Baldwin

  • Just what I needed Just what I needed
Size: 20A
Used this as a breaker off of my battery solar bank. Connected it directly to on of the 12 VDC batteries using #4 battery cable. Then ran cable to my radio bench. This provides direct DC to power my HAM radio. Direct DC is much more efficient than DC to AC then back to DC via a power supply. Well made and easy to use. ... show more
Reviewed in the United States on March 27, 2022 Reviewed in the United States on March 27, 2022 by Ron M.

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