Factory Direct Supply 4-Pole ACB Air Circuit Breaker with ISO9001/CE/CCC Certification

We're looking at a 4-pole air circuit breaker here, rated from 200A up to 6300A depending on your load requirment, and it's built for low-voltge distribution panels where you need serious fault protection — breaking capacity runs 50 to 150kA, which covers most industrial setups. It's got overcurrent, short circuit, overvoltage, and RCCB protection built in, so you don't need to stack separate modules for each function.

Operating tempearture is -5°C to +40°C, and it'll work at altitudes up to 2000m standard — if you're higher than that, our company can look at custom options but lead time stretches (usually 2-4 weeks). We ship with a COA and the unit has ISO9001, CE, and CCC certs, so compliance paperwork is handled. It's not suited for DC systems or high-frequency switching, just AC mains.

You've got manual and electric operation options — most buyers go with electric for remote tripping, but manual handle is fine for smaller panels. The arc-extinguishing medium is air, so no SF6 gas to worry about, and installation can be fixed or withdrawable (insert type) depending on your cabinet layout. Dimensions vary by model but something like 105×161×86mm for the smaller frames.

Basically, if you're putting together a switchboard for a factory or a commerical building, this handles the main incomer or large feeder duty. We usually have stock on common ratings like 1600A and 3200A, but confirm lead time for the 6300A or 4000A versions — those are made to order, about 20 days or so. The 4-pole configuration means you're covering three phases plus neutral, which is pretty much standerd now for most installations.

Also, one thing buyers don't always ask about: the insert version lets you rack the breaker out for maintenance without killing power to the whole bus — saves downtime if you're swapping units. The fixed version is cheaper and simpler though, so it's a trade-off.