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Siemens 5SU9356-8CN40 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU9356-8CN40 RCBO 1+N 6 kA D char. Type A, 40 A

MPN5SU9356-8CN40

Siemens 5SU9356-8CN40, RCBO 1+N 6 kA CN D char. type A Construction line, 40 A.

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

Product details

It belongs to the Construction line series, designed for final subcircuit protection in commercial and residential panels where both overcurrent and earth leakage protection are required in a single module.

Snap-on DIN rail mounting for standard 1+N modular width. D-curve magnetic trip (10–20× In) suits loads with high starting currents — think small refrigeration compressors, pumps, or fluorescent banks with electronic ballasts — where a C-curve would nuisance-trip on energisation.

Frequently asked questions

What is the RCBO rating and breaking capacity of 5SU9356-8CN40?

It is a 40 A, 1+N pole RCBO with a 6 kA breaking capacity, D characteristic, Type A residual current protection, from the Siemens Construction line.

Where can I buy 5SU9356-8CN40 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What does the D characteristic mean on this RCBO?

The D characteristic (magnetic trip 10–20× In) is designed for loads with high inrush currents such as motors, transformers, or discharge lighting, reducing the risk of nuisance tripping during start-up.

MPN
5SU9356-8CN40