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Siemens 5SU1454-1KK25 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1454-1KK25 SENTRON RCBO, 25A, 100mA, Type AC, 10k

MPN5SU1454-1KK25

Siemens SENTRON 5SU1454-1KK25, RCBO, 2-pole, 1P+N, 25 A, 100 mA residual, Type AC, tripping characteristic C, 10 kA / 20 kA, 230/240 V AC, 50 Hz.

Siemens 5SU1454-1KK25 datasheet (PDF)
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

Specifications

5SU1454-1KK25 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1454-1KK25 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1454-1KK25 — Mechanical
ParameterValue
Mounting positionany
Width in modular units2
Maximum75 °C
Minimum-40 °C
Width36 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SU1454-1KK25 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1454-1KK25 — Electrical
ParameterValue
Tripping Characteristic ClassC
Operational current / at AC / rated value25 A

Product details

The Siemens 5SU1454-1KK25 is a 2-pole RCBO from the SENTRON series, combining overcurrent protection (characteristic C) with residual current protection (Type AC, 100 mA) in a single 36 mm wide module. Rated at 25 A and 230/240 V AC, 50 Hz, it delivers a breaking capacity of 10 kA per EN 60898 and 20 kA per IEC 60947-2, giving headroom for fault currents in standard commercial and industrial distribution boards. The 1P+N configuration switches the phase and switches the neutral, with the neutral conductor switching function confirmed.

Panel Integration & Mounting

Breaking capacity of 10 kA (EN 60898) and 20 kA (IEC 60947-2) covers most building and industrial distribution scenarios; the higher IEC rating applies when the RCBO is used as a circuit breaker per IEC 60947-2, giving additional fault-current headroom.

Touch protection is integrated, and the design is instantaneous (no intentional time delay on the residual side).

Frequently asked questions

What is 5SU1454-1KK25's listed depth (77 mm) on this component line?

The depth is 77 mm, with an installation depth of 70 mm — both figures are from the Siemens specification.

What is 5SU1454-1KK25's listed width (36 mm) on this component line?

The width is 36 mm, which corresponds to 2 modular width units on a standard DIN-rail grid.

MPN
5SU1454-1KK25