Singi SWM-100 1P Miniature Circuit Breaker - High Breaking Capacity MCB for Home & Industrial Use

Most circuit breakers on teh market claim compliance, but getting one that actually holds up under an overload—especially when you're pushing 100A through a line—is a different story, we've had buyers come back to us specifically because the Singi SWM-100 1P doesn't trip prematurely on transient surges like some cheaper units do.

At 10kA breaking capacity, it'll handle serious faults down to that -5°C threshold without failing, while the flame-retardant PA66 housing won't crack or soften under sustained heat (we usually have stock on 63A, 80A, or 100A ratings, but the 125A variant might need a lead time check for orders over 50 units or so).

What it does is fit onto a standerd DIN rail faster than most—firm click on the first try, no bending clips—and the terminal capacity goes up to 50mm² cable, which is better than typical 35mm² you'll see on similar-priced breakers from other suppliers.

Mechanicla life is rated at 20,000 operations, but basically a lot of buyers go with the 80A model for mixed loads because you get that extra headroom over a 63A without jumping to the full 100A frame.

For OEM batches, we offer blank housing or custom labels if you order above 500 pieces (just note tolerances aren't ISO-sorted, so don't use this for hypersensitive tripping applicaion like lab equipment), and CE and ISO9001 paperwork is standard with every pallet.

7-10 days from warehouse for stock items, shipped stacked horizontally with terminal protectors on each unit's screws, and the 10-pack cartons weigh about 2.8kg each—so keep that in mind when estimating freight cost.