The S800S family uses a modular 4-pole width of 72 mm (4 x 18 mm per pole), so plan for that footprint in the enclosure layout. The rated voltage of 230 V AC is the phase-to-neutral value; in a 400/230 V three-phase system, each pole sees 230 V to ground, which matches the rating. No separate neutral bar is needed since the 4th pole switches the neutral — verify local code acceptance for switched-neutral configurations in your jurisdiction.
ABB S804S-C125 S800S MCB, 4P C 125A, 50 kA
MPNS804S-C125
ABB S800S series, S804S-C125, 4-pole MCB, Trip Curve C, 125 A, 230 V AC, 50 kA interrupting capacity, DIN rail mount.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Amps | 125 |
| Type | Trip Curve C |
| Poles | 4 |
| Mounting | DIN Rail |
| Volts AC | 230 |
| Breaking capacity | 50 kA |
Product details
Frequently asked questions
What is the interrupting capacity of this breaker?
The S804S-C125 carries a 50 kA interrupting rating at 230 V AC, which is the maximum fault current it can safely clear. This is a high-interrupting-capacity (HIC) device suitable for installation in high-fault-current industrial distribution panels.
Where can I buy the ABB S804S-C125?
This part is sourced and quoted to order through independent industrial-automation distribution. Submit an RFQ for current pricing and availability confirmation; stock levels and lead times are confirmed at quote time.
MPN
S804S-C125