The Siemens 5SU1356-6KV32 is a combined residual-current circuit breaker with overcurrent protection (RCBO) — a Type A FI/LS-protector in the 5SU6 series. It packs a 30 mA residual-current trip, a 6 kA short-circuit breaking capacity, and a B-curve 32 A overcurrent release into a single 1+N-pole module, 70 mm deep. Type A detection means it catches sinusoidal AC faults plus pulsating DC fault currents up to 6 mA smooth DC — the standard for socket-outlet circuits feeding electronics, switched-mode power supplies, or single-phase drives where pure sine-wave RCDs would blind to half-wave rectified faults.

Siemens 5SU1356-6KV32 RCBO Type A, 30mA, 6kA, B 32A
Siemens 5SU1356-6KV32 FI/LS-protector Type A (PSE/SSF), D=70mm, IΔN 30mA, 6kA, 1+N-pole B 32A.
Product details
Frequently asked questions
What is the closest alternative to 5SU1356-6KV32?
Within the same 5SU6 family, a sibling with a different trip characteristic (C-curve instead of B-curve) or a different rated current would be the nearest parametric match. No pin-compatible direct replacement is listed; the B-curve 32 A Type A 30 mA combination is specific to this order code.
Where can I buy 5SU1356-6KV32?
This RCBO is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock figures are published here.