The Siemens 5SU1656-0KV32 is an FI/LS combination unit — an RCD and MCB in one 1+N-pole module — rated Type AC, 300 mA residual sensitivity, 6 kA breaking capacity, B-curve at 32 A. The 70 mm depth fits standard DIN-rail enclosures; the B-curve characteristic trips on short-circuit between 3 and 5 times rated current, matching general-purpose lighting and socket-outlet circuits where inrush is moderate.

Siemens 5SU1656-0KV32 FI/LS Protector, Type AC, 300mA, 6kA,
MPN5SU1656-0KV32
Siemens 5SU1656-0KV32, FI/LS protector Type AC (WS), D=70mm, IΔn 300mA, 6kA, 1+N-pole B 32A.
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026
Product details
Frequently asked questions
Where can I buy 5SU1656-0KV32 and how is it quoted?
Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.
What is the description of 5SU1656-0KV32?
FI/LS-PROTECTOR TYPE AC (WS), D=70MM IFN 300MA, 6KA, 1+N-POLE B 32A.
MPN
5SU1656-0KV32