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Siemens 5SU1154-6KK10 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1154-6KK10 SENTRON RCBO, 1P+N, B-10A, 10mA, 10kA

MPN5SU1154-6KK10
Active

Siemens SENTRON RCBO, 1P+N, B-curve 10 A, 10 mA residual current, 10 kA breaking capacity, 2 MW, IP20, 77 x 36 x 90 mm.

Siemens 5SU1154-6KK10 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

5SU1154-6KK10 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1154-6KK10 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1154-6KK10 — Mechanical
ParameterValue
Mounting positionany
Width in modular units2
Maximum75 °C
Minimum-40 °C
Width36 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SU1154-6KK10 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1154-6KK10 — Electrical
ParameterValue
Tripping Characteristic ClassB

Product details

The Siemens 5SU1154-6KK10 is a SENTRON RCBO — a combined overcurrent and residual-current device in a single 2-module-wide (36 mm) package. It protects a 1P+N circuit with a B-curve thermal-magnetic trip at 10 A and a 10 mA Type A residual-current trip, all with a 10 kA breaking capacity per EN 60898.

At 40 °C it derates to 9.5 A, at 50 °C to 9 A, and at 70 °C to 8 A. If your panel runs warm — say 50 °C inside the enclosure — you're effectively working with a 9 A device, not 10 A.

Supply can enter from top or bottom. IP20 with connected conductors in an installed board — so it's panel-internal, not for wet locations. Degree of pollution 2 and overvoltage category III are standard for fixed-installation final circuits.

Frequently asked questions

What is the difference between 5SU1154-6KK10 and a standard MCB like 5SY4310-7CV?

The 5SU1154-6KK10 is an RCBO — it combines overcurrent protection (B-curve 10 A) with a 10 mA residual-current trip. A standard MCB like 5SY4310-7CV provides only overcurrent protection; it has no ground-fault sensing. If your circuit requires personal protection against direct-contact faults, the RCBO is the correct choice.

Will 5SU1154-6KK10 drop into a panel that was specified around 5SY4310-7CV without rewiring?

Both are 2-module-wide (36 mm) DIN-rail devices, so the physical footprint is the same. However, the RCBO requires a neutral connection for the residual-current electronics, while a standard MCB does not. Check that your panel wiring includes a neutral bar and that the circuit is configured for 1P+N, not just phase-only.

Where can I buy 5SU1154-6KK10 and how is it quoted?

This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — no stock figures are published here, but we confirm both at quote time.

MPN
5SU1154-6KK10