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Chtaixi DC Miniature Circuit Breaker
Warm Tips:
- Pay attention to polarity.
- Select wire size according to rated current.
Magnetic Arc Extinguishing
AC has a zero-crossing point, but DC does not, so DC arc is more difficult to extinguish than AC arc, which is why AC circuit breakers can not be used for DC power, and DC circuit breakers can be used for AC power. This DC mini circuit breaker is equipped with a magnetic field system under the breaking contacts, which can pull the arc to the arc extinguishing chamber to assist arc extinguishing.
Quality Products to Protect Your Electricity Safety
Polarity Marked
This DC MCB has no polarity requirement in use, and the positive and negative poles can be inverted. However, the installation, use, and maintenance of DC circuits are based on polarity requirements. So, in order to provide reliable indication and reference for the distribution, we highly recommend that you connect the wires according to the marked polarity.
Tunnel Terminal
The clamping design of the terminal block is designed to connect firmly, and the tightening torque is 2.5 N.m. ( Soft silicone wire needs to crimp fixed the wire end with copper crimp before wiring. ) Make sure that the wires are tightly connected when connecting to prevent loosening and heating. The surface of the terminal is tin-plated, and the plating layer can improve conductivity, corrosion resistance, and durability.
Silver Alloy Contacts
Contacts are very important to circuit breakers, especially for DC distribution with high arc extinguishing requirements. Good contacts can reduce the heat generated by arcing during disconnection and reduce the wear of the contacts. This DC circuit breaker uses silver alloy contacts, which improves electrical durability, and protects your electricity safety for a long time.
Installation
DIN Rail
Install the 35mm DIN rail horizontally in a stable environment.
Installation
- Hang the circuit breaker slot on the DIN rail
- Push the lower end of the circuit breaker into the DIN rail
Dismounting
- Push the circuit breaker upward
- Turn the upper end of the circuit breaker out of the DIN rail
Mark S
2025-07-20 16:32:02
I used this with my off-grid solar array, and it works great. It arrived quickly and undamaged, installed easily, and so far works flawlessly (over a year so far). A little pricey, but worth it.
spockmckoy
2025-07-07 13:34:00
I bought these for the primary reason to be able to isolate my solar panels from my system. Turn them on/off. The mini breaker does that fine. Will they trip in a fault? I have no idea since I haven't had a fault yet. I've bought several to cover my panel strings. So far so good.
David Nixon
2025-06-18 11:16:33
So the screw terminals have some mild laser etched pattern with no real bite to retain wire. While using 10awg THHN, I’d torque the retention screw as far as possible (why use a Phillips, I don’t know. So many better options) to the point that the unit is flexing and the plastic shell wants to separate. Only to find when mounting the unit, the cable will fall out. After some testing, I found that if you “crimped†the wire a bit by using pliers to pre-flatten the cable before inserting and screwing the retention screw, it performed reasonably well at retaining the wire. I will buy again as the price is right, but I’ll also keep a spare on hand.
Robert C. (Sanjisdad)
2025-05-07 21:43:45
I bought this for a solar disconnect for my off grid setup. I have two strings of panels coming in to my Signature Solar setup. With just a flip of the switch I can disconnect the incoming 24V power and make any modifications I want or install any other in line equipment safely. Took ten minutes to install.
Orlando
2025-03-29 18:54:21
Grade quality breake
Boomerweps
2025-02-24 12:27:42
Mounted in my RV as a solar panel disconnect.
Old ET
2025-02-04 12:28:57
Hopefully never need these, but will be glad I used them, if something happens. Seems excellent quality. The terminals are large enough to accommodate larger gauges of wire.
Jay Rutherford
2025-01-16 09:35:45
I got one of these double pole breakers to disconnect the solar panels from the controller and to protect the whole system. Although I doubt two 100 watt solar panels could cause the breakers to trip, the protection is there if something does go wrong. The DIN mounting system is excellent: just screw the plate where you want it and the breaker snaps in place. The two poles means one can disconnect both positive and negative leads with one ganged switch. I mounted mine in a enclosed location and I just lift a cover if I need to disconnect the panels. Controller manufacturers recommend disconnecting the solar panels before disconnecting the battery connection to the controller, so something like these breakers are needed to do that.
david garcia
2024-12-30 12:10:51
FACILMONTAJE
Miguel Angel Colin Sánchez
2024-11-25 15:36:11
Relación precio - servicio que brinda, es excelente.
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