MCB 32 A, B curve, 7.5 kA — panel fit and protection logic
The Siemens SENTRON 5SL6332-6RC is a 3-pole miniature circuit breaker rated 32 A at 415 V AC, with a B tripping characteristic and a 7.5 kA breaking capacity certified to EN 60898. At 32 A per pole, it handles a typical 3-phase distribution submain or a large fixed load like a water heater or air-handling unit. The housing is IP20 with conductors connected — normal for a distribution board interior. It accepts any mounting position, which simplifies layout in crowded enclosures.
Environmental range and construction
It is sealable, so a lock or tag can be applied to prevent unauthorized reset.
Voltage and DC capability
Rated 415 V AC for multi-phase operation, with a maximum of 440 V AC. Single-phase operation is rated at 250 V AC. For DC circuits, the maximum rated voltage is 72 V — this is not a primary DC breaker but can be used on low-voltage DC control circuits within that limit.