Siemens 5SU1356-1KV40, FI/LS-protector Type AC (WS), D=70mm, IΔn 30mA, 6kA, 1+N-pole, C 40A.
The Siemens 5SU1356-1KV40 is a combined residual-current device and miniature circuit breaker (RCBO) in a single 1+N-pole module. The 30 mA sensitivity provides personal protection against direct contact.
The 70 mm depth fits standard flush-mount consumer units and small distribution boards without protruding past the enclosure lid.
It is rated for 6 kA breaking capacity with a 30 mA residual-current trip (Type AC) and a C-curve overcurrent characteristic at 40 A, in a 1+N-pole configuration.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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