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Siemens 5SU9353-7CR32 — Residual Current Breakers (RCCB/RCBO)

Siemens 5SU9353-7CR32 RCBO, 32 A, 30 mA, Type A, C-Char

MPN5SU9353-7CR32

Siemens 5SU9353-7CR32 RCBO, 1P+N, Type A, 30 mA, C-Char, In: 32 A, Un AC: 230 V, Icn: 4.5 kA.

Siemens 5SU9353-7CR32 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Product details

The Siemens 5SU9353-7CR32 is a 1P+N RCBO (residual current circuit breaker with overcurrent protection) rated 32 A, 30 mA trip sensitivity, Type A, C-characteristic, on a 230 V AC supply. Type A detection handles pulsating DC fault currents from electronics (SMPS, LED drivers, EV chargers), so it's the right choice for circuits with downstream rectification.

The 1-module width (roughly 18 mm per pole) keeps panel density tight — a 12-way board fits 12 of these RCBOs in a single row. Cable entry from bottom or top depending on busbar arrangement; the neutral terminal on the left side is common for Siemens RCBOs in this range.

The 30 mA residual sensitivity meets the standard for socket-outlet and general-purpose circuit protection in most IEC 60364 installations.

Frequently asked questions

What does the 4.5 kA breaking capacity mean for my installation?

The 4.5 kA Icn rating means the RCBO can safely interrupt a fault current up to 4.5 kA at 230 V AC. This covers most domestic and light commercial distribution boards where the prospective short-circuit current is below that level. For industrial panels with higher fault capacity, you'd need a device rated 10 kA or higher.

Where can I buy the 5SU9353-7CR32?

We source this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send an RFQ and we'll get back with a firm price and lead time.

What is the difference between Type A and Type AC for this RCBO?

Type A detects both sinusoidal AC fault currents and pulsating DC fault currents (rectified half-waves from electronics). Type AC only detects sinusoidal AC. The 5SU9353-7CR32 is Type A, so it's the correct choice for circuits with electronic loads like computers, LED drivers, or EV chargers.

MPN
5SU9353-7CR32