Branch circuit protection for three-phase panels
The 5SJ4313-7HG41: Rated for 400 V AC with an insulation voltage of 440 V AC, and up to 60 V DC for signal or battery circuits. The 3-pole design switches three phases simultaneously; neutral switching is not included, so a separate fused neutral or isolator is required for TN-S systems.
Mounting and dimensional fit
Occupies 3 modular width units (54 mm) on a standard DIN rail, with a depth of 70 mm and height of 110 mm. Fits most distribution boards and sub-panels without re-drilling. Mounting position is any, simplifying enclosure layout. Combined terminals top and bottom accept Cu conductors with a tightening torque of 3.5 Nm. IP20 with conductors connected; IP40 in handle area. Ambient temperature range -40 °C to 75 °C, with up to 95% humidity. Suitable for environment B per EMC immunity (immunity not applicable). Vibration resistance to 50 m/s² at 25–150 Hz and 60 m/s² at 35 Hz for 4 seconds.
Lifecycle and sourcing
Halogen-free and silicon-free construction meets clean environment requirements. Sealable design allows lock-out for safety lockout/tagout procedures. Pollution degree 3 and overvoltage category 3 suitable for industrial environments.