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Siemens 5SU1656-1KK16 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1656-1KK16 SENTRON RCBO, 16 A, 6 kA, Type C, 1P+N

MPN5SU1656-1KK16

Siemens SENTRON RCBO, 5SU1656-1KK16, 1P+N, 16 A at 30 °C, Type C, 6 kA per EN 60898, 15 kA per IEC 60947-2, 2 MW, IP20.

$34.29Ref. price · indicative, final on quote
Siemens 5SU1656-1KK16 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

5SU1656-1KK16 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU1656-1KK16 — Identification
ParameterValue
Product designationRCBO
Product design / constructionInstantaneous
5SU1656-1KK16 — Mechanical
ParameterValue
Mounting positionany
Width in modular units2
Maximum75 °C
Minimum-40 °C
Width36 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SU1656-1KK16 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU1656-1KK16 — Electrical
ParameterValue
Tripping Characteristic ClassC

Product details

The Siemens 5SU1656-1KK16 is a SENTRON RCBO (residual current operated circuit breaker with integral overcurrent protection) in a 1P+N configuration, meaning it switches and protects the live conductor and switches the neutral. Supply can enter from either top or bottom, simplifying panel layout. The IP20 rating applies once installed in a distribution board with conductors connected — not for exposed outdoor use.

Temperature derating and real-world current

At 40 °C the continuous current drops to 15.2 A, at 50 °C to 14.4 A, and at 70 °C to 12.32 A.

Frequently asked questions

What is the breaking capacity of the 5SU1656-1KK16?

It carries a 6 kA rating according to EN 60898 and a 15 kA rating according to IEC 60947-2. The higher figure applies when the RCBO is used in an industrial coordination context per the standard.

Does the 5SU1656-1KK16 fit a standard DIN-rail panel?

Yes, it snaps onto a 35 mm DIN rail, occupies 2 modular width units (36 mm), and can be mounted in any position. Supply wiring can enter from top or bottom.

Where can I buy the 5SU1656-1KK16 and how is it quoted?

It is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer.

MPN
5SU1656-1KK16