SC65-63 High Performance 3P Miniature Circuit Breaker 6-63A for Electrical Protection

our company can do custom vial sizes and labeling if your order volume is there, and concentration adjustments are pretty straightforward too — the 63A version tends to be our most common request for bulk synthesis anyway.

It's a 3-pole unit with a 10kA breaking capacty, which basically means it handles short circuits better than a lot of standdard breakers we've seen come through, and the C-curve or D-curve tripping characteristics give you flexibility depending on whether it's for general lighting or motor protection.

The housing is flame-retardant PA66 with a UL94 V-0 rating, so it doesn't melt into a mess under fault conditions, and we've found the terminal capacity up to 25mm² is usually enough for most installations without needing adapters.

What it does is protect circuits form overloads and short circuits at 230/400V AC, 50/60Hz, and the mechanical life is about 20,000 operations or so — though in most cases you'll replace it long before that for other reasons.

It's not ideal for outdoor panels without extra enclosure though, since the IP20 rating means it's basically dust-protected but not water-resistant, and operating temperature range is -30°C to +55°C which covers most indoor environments.

Also, we usually have stock on the 6A, 16A, and 32A ratings, but confirm lead time for the 50A or 63A variants — they're roughly 20 days out when demand spikes.