RCBO rating and fit
The Siemens 5SU9353-1KK25 is a combined residual-current circuit breaker with overcurrent protection (RCBO) in a single 1P+N module. Rated In 25 A with a C-trip characteristic, it handles motor-start and moderate inrush loads common in lighting and small-motor circuits. The integrated 30 mA Type AC residual-current element detects sinusoidal AC earth faults — the standard for general-purpose socket outlets and lighting circuits in residential and commercial panels. Icn 4.5 kA at 230 V AC covers the typical prospective fault level at the distribution board in most TN systems.
Lifecycle and compliance
Listed as Active. RoHS compliant since 27-04-20. REACH Art. 33 applies — lead (CAS 7439-92-1) present above 0.1% w/w in the product. No UL or IEC certification numbers are on record for this order code; the RCBO class is designed to EN 61009-1. Export control: AL N / ECCN N.
Sourcing
As an active Siemens RCBO, the 5SU9353-1KK25 is available to order. Sourced and quoted against an RFQ; current pricing and availability confirmed at quote time. Product class B means return is restricted — verify quantity and order code before committing the BOM line.