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Siemens 5SU1156-0KV16 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU1156-0KV16 FI/LS, Type AC 10mA, B16A, 6kA, 1+N

MPN5SU1156-0KV16

Siemens 5SU1156-0KV16, FI/LS-protector type AC, D=70mm, IΔn 10mA, 6kA, 1+N-pole, B-characteristic 16A.

$120.99Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

5SU1156-0KV16 — Specifications
ParameterValue
Weight0.23 kgs

Product details

It integrates a 10 mA residual-current trip (type AC, sensitive to sinusoidal AC fault currents) with a B-curve 16 A thermal-magnetic overcurrent element, all in a 1+N-pole, 70 mm wide DIN-rail housing rated for 6 kA breaking capacity.

The 10 mA IΔn is the key differentiator — this is a high-sensitivity residual-current trip, typically specified for circuits where a 30 mA device would not provide adequate personnel protection (e.g., wet locations, medical rooms, or circuits feeding hand-held equipment in a panel shop). The B-curve 16 A overcurrent characteristic means the magnetic trip operates between 3× and 5× In (48–80 A), suited for resistive or lightly inductive loads like lighting, small control transformers, or general-purpose socket outlets.

Deployment context

Snap-on DIN-rail mount for a standard 70 mm wide enclosure cutout. The 1+N pole arrangement switches the phase only; the neutral is switched internally for isolation but does not carry an overcurrent trip. In a panel, this unit occupies the same footprint as a standard 2-module MCB but requires neutral busbar routing through the device.

Frequently asked questions

How do I get current pricing and availability for 5SU1156-0KV16?

Submit an RFQ through the storefront; the part is sourced to order through independent distribution, with pricing and lead time confirmed at quote time.

What is 5SU1156-0KV16's listed part number?

The order code is 5SU1156-0KV16, also listed as 5SU1-156-0KV16 on the component line.

Will 5SU1156-0KV16 drop into a panel specified around 6ED1053-1BB00-0BA2 without rewiring?

No — 6ED1053-1BB00-0BA2 is a PLC expansion module (PLCs & HMIs category), not a circuit breaker. The 5SU1156-0KV16 is a DIN-rail RCBO; it cannot substitute a PLC module and requires a different panel location and wiring scheme.

MPN
5SU1156-0KV16