The Siemens 5SU1654-0KV20 is a combined residual current device and miniature circuit breaker (RCBO) — a single module that packs RCD and MCB protection into one 70 mm wide unit. It is a Type AC (wave shape) device, meaning it detects sinusoidal AC residual currents only. The 300 mA trip threshold suits it for fire protection or circuits where nuisance tripping from leakage is a concern, rather than direct personal shock protection (which typically demands 30 mA or lower). The overcurrent side is a 1+N-pole B-curve 20 A breaker, rated for 10 kA breaking capacity. DIN-rail mounted; the 70 mm width occupies four standard 17.5 mm modular spaces.
Siemens 5SU1654-0KV20 RCBO, Type AC 300mA, B 20A, 10kA, 1+N
MPN5SU1654-0KV20
Siemens 5SU1654-0KV20 FI/LS-protector, Type AC (WS), D=70mm, IΔn 300mA, 10kA, 1+N-pole B 20A.
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Product details
Frequently asked questions
What is the 5SU1654-0KV20's listed description and key ratings?
The 5SU1654-0KV20 is described as an FI/LS-protector Type AC (WS), 70 mm wide, with a rated residual current IΔn of 300 mA, a breaking capacity of 10 kA, 1+N poles, and a B-curve thermal-magnetic trip at 20 A.
Where can I buy the 5SU1654-0KV20?
The 5SU1654-0KV20 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
5SU1654-0KV20