Siemens 5SL4414-8CC Miniature Circuit Breaker – 400V 10kA, D-Curve, 0.3A
The Siemens 5SL4414-8CC is a 4-pole miniature circuit breaker rated at 400 V with a 10 kA breaking capacity, D-trip characteristic, and a 0.3 A current rating.
Compliance Documentation
The 5SL4414-8CC has been RoHS-compliant since June 1, 2013. Under REACH Article 33, the part contains lead (CAS 7439-92-1) above the 0.1% threshold in the candidate list, which is standard for electrical components with lead-bearing solder joints or terminal coatings. This means the manufacturer is required to disclose the presence of lead upon request; the part itself remains legal to sell and install under current EU regulations.
Integration Note
The 4-pole form factor occupies four standard DIN-rail module widths (each pole roughly 18 mm). The D-curve at 0.3 A is an uncommon low-current rating — verify that the downstream load's inrush characteristic stays within the 10-20x In magnetic trip band to avoid unwanted trips. For panel builders, the spring-loaded terminal clamps accept up to 25 mm² conductor; torque to the manufacturer's specification for the connection type.