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Look, it's a molded case breaker so it's not built for endless switching — mechanicla life is 8,500 cycles and electrcial life is only 1,500, but for protection duty in a fixed instalation that's pretty much the norm anyway.
We run every batch through three-stage testing before release — short-circuit, thermal, and dielectric — and we've got CCC certs on file for teh whole ARM3-125 range, so you're covered for Chinese market compliance (check your local acceptance though).
It covers 16A up to 125A with four break levels form 35kA to 100kA at 400V, and we've found the 50kA models sell most for building feeders — about 70% of our orders go with L or M because the H tier gets pricey fast.
One thing we don't advertise is the undervoltage trip (usually a separate accessory), but standard unit handles overload and short circuit without extra parts — just manual operation, fixed mounting, air arc-extinguishing.
Lead time is roughly 20 working days or so for a 3P unit, and we'll retest samples gratis if you want to verify consistency before committing to a full batch — just ask for a pre-ship sample and COA.
Our MOQ for the ARM3-125 is 50 units per order, but we can discuss smaller quantities for first-time buyers.
Standard lead time is 20–25 working days from order confirmation; stock orders can ship within a week.
Yes, every ARM3-125 comes with valid CCC certification papers; we can share copies before shipment.
The C level offers 35kA breaking capacity, L is 50kA, M is 70kA, and H is 100kA — higher levels suit systems with larger fault currents.
Yes, we can adjust the undervoltage trip threshold on request, but standard setting is fixed per order; please specify your requirement when placing it.
