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Siemens 5SU9356-1CS20 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU9356-1CS20 SENTRON RCBO, 20 A, C-curve, 6 kA

MPN5SU9356-1CS20

Siemens SENTRON 5SU9356-1CS20, RCBO, 2-pole 1P+N, 20 A, C tripping characteristic, 6 kA (EN 60898) / 10 kA (IEC 60947-2), 50 Hz, AC fault current, halogen-free, 2 MW wide.

Siemens 5SU9356-1CS20 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

5SU9356-1CS20 — Electrical Ratings
ParameterValue
Number of poles2
Overvoltage categoryIII
5SU9356-1CS20 — Identification
ParameterValue
Product designationRCD-operated circuit breaker
Product design / constructionInstantaneous
5SU9356-1CS20 — Mechanical
ParameterValue
Mounting positionany
Maximum1.5 W
Width36 mm
Height90 mm
Depth77 mm
Installation depth70 mm
5SU9356-1CS20 — Environmental
ParameterValue
IP degree of protectionIP20, if the distribution board is installed, with connected conductors
5SU9356-1CS20 — Electrical
ParameterValue
Tripping Characteristic ClassC

Product details

The Siemens SENTRON 5SU9356-1CS20 is a 2-pole (1P+N) RCD-operated circuit breaker — a combined residual-current device and miniature circuit breaker in one 36 mm wide (2 MW) package.

Current rating is temperature-dependent: 20 A at 30 °C ambient, derated to 18.8 A at 40 °C, 18.2 A at 45 °C, 17.4 A at 50 °C, and 16.2 A at 55 °C. The operating ambient range is -25 to +45 °C. Rated frequency is 50 Hz.

Installation and wiring

Supply can enter from top or bottom. Touch protection is built in. IP20 rating applies when the distribution board is installed and conductors are connected.

Frequently asked questions

What is the 5SU9356-1CS20's depth and wiring capacity?

Depth is 77 mm (installation depth 70 mm). Solid and stranded conductors from 0.75 to 35 mm² are accepted.

Will the 5SU9356-1CS20 drop into a panel designed for 5SL6563-7BB?

Both are 2 MW wide (36 mm) RCBOs with similar form factor, but the 5SU9356-1CS20 is a 20 A C-curve AC type, while the 5SL6563-7BB is a different rating and characteristic — verify the specific rating and curve before substituting.

Where can I buy the 5SU9356-1CS20?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What compliance documentation is available for the 5SU9356-1CS20?

RoHS, REACH, and IEC/EN test certificates are available from the manufacturer on request.

MPN
5SU9356-1CS20