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!
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Product Description
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
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Polarity MarkedThis 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 TerminalThe 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 ContactsContacts 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
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DIN RailInstall the 35mm DIN rail horizontally in a stable environment. |
Installation
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Dismounting
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| DC Miniature Circuit Breaker 12V-110V | DC Miniature Circuit Breaker 12V-110V | DC Miniature Circuit Breaker 500V | DC Miniature Circuit Breaker 500V | DC Miniature Circuit Breaker 1000V | |
| Customer Reviews |
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| Price | $9.47 | $14.29 | $14.89 | $18.57 | $15.98 |
| Amperage | 6A / 10A / 15A / 20A / 25A / 32A / 40A / 50A/ 60A | 6A / 10A / 15A / 20A / 25A / 32A / 40A / 50A/ 60A | 10A/ 16A/ 20A/ 25A/ 32A/ 40A/ 50A/ 63A | 80A / 100A / 125A | 10A/ 16A/ 20A/ 25A/ 32A/ 40A/ 50A/ 63A |
| Curve code | B | B | C | C | C |
| Poles | 1P | 2P | 2P | 2P | 2P |
| Dimensions (inches) | 2.96 x 0.71 x 3.26 | 2.96 x 1.42 x 3.26 | 2.95 x 1.42 x 3.15 | 3 x 2.13 x 3.15 | 2.95 x 1.42 x 3.15 |
| Main uses | Battery protection, battery disconnect. | Battery protection, battery disconnect. | Solar panel disconnect. | Solar panel disconnect, main bus control. | Solar panel disconnect. |
Videos
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FULL REVIEW - DC Solar Disconnect Circuit Breaker (CHTAIXI)
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Honest Review of 25 Amp Mini DC Circuit Breaker
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Looking at the DC Miniature Circuit Breaker
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Reviews with images
Great for Solar
Great addition for a safety disconnect on my solar panels on my RV. Installs easily into fuse box found on Amazon.
Top reviews from the United States
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Reviewed in the United States on March 27, 2024
Size: 32AVerified Purchase
Great addition for a safety disconnect on my solar panels on my RV. Installs easily into fuse box found on Amazon.
Images in this review
Top reviews from other countries
TLD
Missing part
Reviewed in Canada on June 1, 2023Size: 63AVerified Purchase
TLD
Reviewed in Canada on June 1, 2023
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