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โก Break limits, not circuits โ power up with confidence!
The CHTAIXI 40 Amp 2 Pole Miniature Circuit Breaker offers robust overload and short circuit protection for 120V/240V AC systems. Featuring a Curve C magnetic trip range, silver alloy contacts, and a flame-retardant shell, itโs engineered for durability and safety. Ideal for solar, RV, and home circuits, it mounts easily on a 35mm DIN rail with screw clamp wiring. Trusted by professionals, it ranks #1 in miniature circuit breakers with a 4.7-star customer rating.

| ASIN | B09TVT4CW1 |
| Best Sellers Rank | #4,467 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Miniature Circuit Breakers |
| Brand | CHTAIXI |
| Brand Name | CHTAIXI |
| Circuit Breaker Type | Standard |
| Current Rating | 40 A |
| Customer Reviews | 4.7 out of 5 stars 348 Reviews |
| Item Dimensions D x W x H | 2.95"D x 1.42"W x 3.15"H |
| Item Highlight | DIN Rail Mount, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C40 |
| Item Weight | 6.31 ounces |
| Manufacturer | CHTAIXI |
| Model | DZ47N-63 |
| Mounting Type | DIN Rail Mount |
| Number Of Poles | 2 |
| Number of Items | 1 |
| Number of Poles | 2 |
| Part Number | 47N63-2PC |
| Product Dimensions | 2.95"D x 1.42"W x 3.15"H |
| Unit Count | 1 Count |
| Voltage | 240 volts |
A**Z
CHTAIXI Mini Circuit Breaker
โThis circuit breaker looks well made and feels solid. It was straightforward to install and works as expected. The compact design is convenient, and the construction gives me confidence in its quality. Good product for the price.โ
L**J
Great product
โญโญโญโญโญ This 40A circuit breaker feels solid and well made. It installs easily, the terminals provide a secure connection, and the switch operates smoothly with a firm click. Iโve been using it in my electrical system, and it has performed reliably without any issues. Excellent quality, dependable protection, and a great value for the price. I would definitely buy it again.
S**.
Been working good
These are good
E**L
Very excellent good explanation on how to install
Very easy to install all instructions are very explicit even a teenager could understand highly recommend
J**.
Fixed My Exterior AC Disconnect
I was doing some upgrades to our AC system and the 40+ year old outside disconnect failed. I used this breaker to replace the original disconnect and it's working perfectly.
O**.
Good quality
Perfect for my home lab that includes a 19โ networking rack, this is mounted on a DIN rail inside the lockable rack , this one is a double disconnect and Iโm only using one side of it in case I need the second one in the future. Nice crisp click for on/off
K**N
Chtaixi AC breaker
Great product so far. I noticed there are no signs on the breaker indicating neutral or live. It seems like you can just install the wire in any slot in any section of it.
B**S
This is used in our system
We try to buy from the Ma and Pa places on here. Being disabled . We need to be price conscious. At "The Mother In Laws Place" It is an off-grid cabin, we run DC on a lot of things . We see no need to use the inverter 24/7. just so you can turn on a light when you come home . We use LED bulbs in ceiling mount fixtures that are marked 12-volt DC only. These are controlled by controller with a FOB remote. The controller is board mounted on our PV control center . We use a few of the controllers for different rooms to control each ceiling light . We also run the kitchen stove exhaust fan with DC . The fresh air intake system for combustion is DC . These are fused in our DC only fuse center . This fuse center is controlled by a service disconnect at the DC master box . We also run two AC fuse boxes on our PV board . One protects various AC 110 volt circuits in the cabin , garage and sauna . The other protects 220 volt circuits from the aux gen set and to the split ac/heat pump and the aux battery charger for when the PV and hopefully soon to be wind generated power are not enough to keep up. We run 8 - 6volt Rolls batteries tied by Buss bars . They are temperature and voltage monitored on the PV board and by the inverter unit. The power is inverted by a Renogy 3000 . It also has a multi stage charger built it with flow through capability . These are almost all protected by Breakers purchased here . We have a remote shallow well system that we use a soft start unit on . It lessens the instant draw on the system . It is all about power management. This is a semi detailed , general description of some of the off grid power systems we use . I am going to add this review to each one of the parts bought on here .
S**S
Well made Quality !!!
.... As Advertized ... Good Quality ... Fast Delivery ... Easy to Install in the purpose made cover/box also purshased ... Thank You .... SH
Trustpilot
2 weeks ago
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