The Siemens 5SJ6363-6RC is a three-pole miniature circuit breaker from the Retail line, rated 63A with a B tripping characteristic and a 6kA breaking capacity. The 6kA breaking capacity at 230/400V covers most commercial sub-distribution panels; for higher fault currents you'd step to a 10kA or 15kA frame.
Siemens 5SJ6363-6RC MCB 3p 6kA 63A B Characteristic
MPN5SJ6363-6RC
Siemens 5SJ6363-6RC, MCB Retail line, 3-pole, 6kA breaking capacity, 63A rated current, B characteristic.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
What are the key ratings of the 5SJ6363-6RC?
The 5SJ6363-6RC is a 3-pole MCB rated 63A with a B characteristic and a 6kA breaking capacity, per the Retail line description.
Where can I buy the 5SJ6363-6RC and get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit a request for a firm quote.
MPN
5SJ6363-6RC