We've been getting a lot of queries from solar farm integrators lately, especially those dealing with large 1500V arrays where standdard breakers just don't cut it, and the 20kA breaking capasity at that voltage is what usually brings them to this model.
mechanical life is rated at 10,000 operations, but honestly, what most people care about is the 2,000 electrical cycles under full load — that's where the arc extinguishing system gets a real workout, and the pressurized air blowing solution keeps it form welding shut.

So you're looking at a 4-pole unit that handles 250A to 500A, and it's not for small residential setups — this is strictly for utility-scale photovoltaic systems where a fault could cascade through the whole string if the breaker doesn't trip fast enough.

It basically comes with overload and short circuit protection built in, and the energy-storage operation means it snaps open rather than slowly separating, which matters when you've got DC arcs that don't naturally extinguish like AC ones do.
We usually have stock on these, but the CCC certification process adds about 3 weeks to delivrey (check lead time for your region), and the packaging is a single unit per carton with foam inserts — that 198 by 257 by 147mm box isn't light, so factor that into your logistics.
Our MOQ for the ARM6DC-500A is typically 10 units, but we can discuss smaller orders depending on stock availability.
Standard lead time is around 15-20 working days after order confirmation, subject to current production volume.
Yes, we include copies of both ISO9001 and CCC certifications with every order, and we can also email them in advance if needed.
The ARM6DC-500A model is adjustable within the 250A to 500A range, but you need to specify the exact rated current when ordering so we set it accordingly at the factory.
It's designed for indoor or sheltered use in PV systems. For storage, keep it in a dry, clean environment with temperatures between -25°C and 55°C, away from direct sunlight and moisture.