The Siemens 5SL7432-3RC is a 4-pole miniature circuit breaker (MCB) rated at 32 A with a K characteristic and a 15 kA breaking capacity.
The K characteristic magnetic trip threshold is 8x to 14x In. The 15 kA breaking capacity at 400/415 V AC means it can safely interrupt a short-circuit fault up to 15 kA without welding contacts or cascading upstream — adequate for most sub-distribution boards in commercial and light industrial installations.
Deployment context
Snap-on DIN rail mounting for standard 35 mm rail; 4-pole width occupies 4 module spaces (72 mm).