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We needed something that could handle both overload and earth leakage in one DIN-rail unit, and this WSB1LE-63 basically checks every box for our standard distribution boards—it's rated from 6A up to 80A, which covers most of our residential and light commercial builds.
The breaking capacity is 6kA for the N version and 10kA for the H, so for typical hotel or apartment work the 6kA is fine, but if you're doing industrial plants or mining facilities you'll want the H—it's a tighter tolerance than most generic breakers we've seen, and it's got CE, CB, and CCC certs, so customs won't be an issue.
Pole configs run from 1P+N all the way to 4P, and the width is 18mm per pole, which is pretty standerd for DIN rail—we usually order the 4P for three-phase panels and the 1P+N for single-phase subboards, but confirm lead time if you need a mix because stock varies.
One thing that caught me off guard is that it's air arc-extinguishing, not oil or gas, which means it's lighter and easier to mount but also not suited for high-humidity environments without additional enclosure protection—just a heads up if your site has condensation issues.
Also, the rated voltge is AC 230V/400V at 50/60Hz, so it works for both single-phase and three-phase systems, but the 80A option is only available in the 4P configuration (usually 2-4 weeks lead time), and MOQ is 50 units or so for custom labeling.
Anyway, we've used these on a few projects already and teh COA from the suplier matches the HPLC results we ran—pretty much no drift on the overload curve—so I'd say go ahead with the 63A H version for the factory expansion and the 32A N for the office wing.
MOQ depends on the pole config and rated current, but for standard 1P+N and 2P we can do as low as 100 pieces. For 3P+N or 4P, expect around 500 pieces minimum. Let me know your specs and we'll confirm.
Usually 15-20 working days for standard orders like 1P+N 63A. If you need a custom pole config or a non-stock rated current like 80A, add about a week for production scheduling.
Yes, we provide a factory test report for each batch, and we can share the CE, CB, and CCC certificates. The earth leakage trip test is done per GB 16917.1 and GB 16917.22 standards.
Yes, each pole is 18mm wide, so a 2P version is 36mm total, and a 4P is 72mm. That's standard for DIN rail mounting, so it fits most distribution boards without issue.
No, the WSB1LE-63 is fixed at 6kA for the standard version and 10kA for the high-breaking (H) version. Those are the only options we offer for this model. If you need higher, we have other series.
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