Siemens 5SL6340-6BB — SENTRON 3-pole MCB, B-curve 40 A
Sealable design allows tamper-proofing after commissioning.
Electrical ratings and duty
Three-pole switching, no neutral pole. Rated for 400 V AC phase-to-phase, with a maximum of 440 V in multi-phase operation. DC rating is 60 V maximum — not a primary DC breaker, but usable on low-voltage DC control circuits within that limit. Overvoltage category 3, energy limiting class 3. Ambient temperature influence noted: periodically up to +55 °C with 95% humidity; the unit is halogen-free and silicon-free.