Siemens 5SU1656-1KV25 FI/LS-PROTECTOR, Type AC (WS), D=70mm, IΔn 300mA, 6kA, 1+N-pole, C 25A.
The Siemens 5SU1656-1KV25 is a combined residual current device and miniature circuit breaker (RCBO) in a single 1+N-pole module, Type AC sensitivity, rated at 25 A C-curve overcurrent protection and 300 mA residual trip threshold.
The 70 mm depth (D=70mm per the description) fits standard DIN-rail enclosures; the 1+N-pole format occupies a single module width on the rail, leaving room for adjacent MCBs or contactors in a crowded consumer unit or sub-distribution board.
It carries a 6 kA breaking capacity, 300 mA residual trip current (Type AC), and a 25 A C-curve overcurrent characteristic in a 1+N-pole format.
The part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
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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