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When one of your installers is wiring up a 48V battery bank for a telecom site and needs to isolate a string that's pulling 40 amps under load, this is the little box that sits between the panels and the inverter, handling the switch-off cleanly without arcing or welding contacts shut.
We've been shippng these MDB1Z-63 units for about three years now, mostly into off-grid solar and indutrial battery racks, and what it does is provide relaible 6kA breaking capacity at up to 1000V DC—which is better than some generic breakers we've seen that only manage 440V or so before they start degrading.
The 2-pole construction means you're isolating both the positive and negative lines simultaneously, which matters a lot in high-voltage DC setups where a single-pole break just isn't safe; we usually stock the 32A and 63A versions, but the 6A to 63A range covers most small-to-mid scale battery systems pretty well.
It's not really meant for AC mains or anything with inductive loads like motors—the arc-extinguishing is air-based and optimized for DC, so if you try it on a compressor circuit you'll get nuisance tripping or contact wear within a few cycles (we learned that the hard way on a test bench).
Lead time is typically 15 to 20 working days, give or take a few depending on the quantty, and our company can do mixed pallets of different amp ratings in the same carton packing—just specify on PO and we'll include the COA and CE/CCC documentation with the shipment.
Our MOQ is typically 100 pieces per order, but we can negotiate smaller quantities for first-time buyers or sample requests.
Standard orders ship within 15-20 working days after payment confirmation. Rush orders may be possible with prior arrangement.
Yes, we can supply copies of the test reports and certificates for CE, CB, and CCC upon request—just ask your sales rep.
The 1000V DC rating is the total operational voltage across both poles in series. For a 600V DC system, you can use it on a single pole.
Each unit comes in a standard carton packaging, which is fine for dry storage. For humid or harsh environments, we recommend adding desiccant or using sealed bags.
