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Siemens 5SU1654-1KK40 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1654-1KK40 SENTRON RCBO, 40A, 300mA, C-Curve, 2-P

MPN5SU1654-1KK40

Siemens SENTRON 5SU1654-1KK40 RCBO, 2-pole (1P+N), 40 A rated, 300 mA AC residual current, C characteristic, 10 kA / 15 kA breaking capacity, IP20, halogen-free.

Siemens 5SU1654-1KK40 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

5SU1654-1KK40 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1654-1KK40 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1654-1KK40 — Mechanical
ParameterValue
Mounting positionany
Width in modular units2
Maximum75 °C
Minimum-40 °C
Width36 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SU1654-1KK40 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1654-1KK40 — Electrical
ParameterValue
Tripping Characteristic ClassC
Operational current / at AC / rated value40 A

Product details

What this RCBO does on the line

The Siemens 5SU1654-1KK40 is a 2-pole (1P+N) SENTRON RCBO — residual current breaker with overcurrent protection — rated for 40 A at 230/240 V AC, 50 Hz.

Feed from either top or bottom — no preferred orientation. IP20 with conductors connected and distribution board installed, so it's for enclosed panels only, not washdown areas. Touch protection is built in.

The 300 mA residual current trip level is deliberately high; it's for circuits where nuisance tripping on a 30 mA device would be a problem (e.g., industrial ovens, large pumps with long feeder cables). The C-curve magnetic trip (5–10x In) handles motor start surges without dropping out. The 1 kA surge withstand (8/20 μs) means it survives lightning-induced transients on the line side without damage.

Frequently asked questions

What is the breaking capacity of 5SU1654-1KK40?

10 kA per EN 60898 for domestic-style distribution boards, and 15 kA per IEC 60947-2 for industrial panel duty. The IEC 60947-2 rating is the one that governs fit in a plant-floor sub-distribution board.

Where can I buy 5SU1654-1KK40?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures on the public listing.

What compliance documentation does Siemens provide for 5SU1654-1KK40?

The part carries EN 60898 and IEC 60947-2 ratings, and is halogen-free and silicon-free. Standard Siemens declarations of conformity (CE, UKCA) and material compliance (RoHS, REACH) are available on request with the order documentation.

MPN
5SU1654-1KK40