The Siemens 5SJ6125-6RC is a 1-pole miniature circuit breaker from the 5SJ6 Retail line, rated 25 A with a B tripping characteristic and a 6 kA breaking capacity. This is the rating that decides fit in a distribution board: 25 A feeds a lighting submain or a small appliance circuit; 6 kA breaking capacity handles typical domestic or light commercial fault levels.
Siemens 5SJ6125-6RC MCB 1P 6kA 25A B Curve
MPN5SJ6125-6RC
Siemens 5SJ6 Retail line, MCB 1-pole 6kA 25A B Characteristic, order code 5SJ6125-6RC.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
Where can I buy 5SJ6125-6RC and get a price?
The 5SJ6125-6RC is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is the 5SJ6125-6RC's rated breaking capacity and characteristic?
It is a 1-pole MCB with a 6 kA breaking capacity, 25 A rated current, and a B tripping characteristic (trips at 3–5× In).
MPN
5SJ6125-6RC