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Siemens 5SM1312-0FD — Residual Current Breakers (RCCB/RCBO)

Siemens 5SM1312-0FD FI-Protector, 25A 2-Pole 30mA Type AC, 2

MPN5SM1312-0FD

Siemens FI-Protector, Type AC (WS), 25A, 2-pole, 30mA, 230V, 55mm width, 2TE.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Product details

Type AC residual current protection, 25 A, 2-pole

The Siemens 5SM1312-0FD is a Type AC FI-Protector (residual current device / RCD) rated 25 A, 2-pole, with a 30 mA trip sensitivity at 230 V. The 30 mA sensitivity covers personnel protection (shock hazard) per IEC/EN 61008; 25 A ampacity suits it for final sub-circuits feeding socket outlets, lighting, or small equipment in residential and commercial panels.

DIN-rail mounting, 2 TE width

Width is 55 mm (2 module spaces / 2 TE on a standard DIN-rail enclosure). The 2-pole form factor (L + N) occupies two positions in the distribution board. Terminal capacity and wire range follow the standard Siemens FI-Protector footprint for retrofit into existing SENTRON or other DIN-rail panels.

Frequently asked questions

Where can I buy 5SM1312-0FD and get a price?

We source this part to order against an RFQ. Current pricing and availability are confirmed at quote time — submit an RFQ through the storefront for a firm quote.

What is the difference between Type AC and Type A RCDs for this part?

Type AC (as on this 5SM1312-0FD) detects sinusoidal AC residual currents only. Type A also detects pulsating DC residual currents (e.g. from rectifiers, VFDs, or switching power supplies). For circuits with electronics, a Type A or Type F device is typically required; Type AC is the baseline for purely sinusoidal AC loads.

MPN
5SM1312-0FD