The 4-pole design occupies 4 modular width units — 72 mm wide, 90 mm tall, 76 mm deep with a 70 mm installation depth. Combined terminals top and bottom simplify daisy-chaining busbars. Sealable for lockout/tagout compliance. Halogen-free and silicon-free — relevant if the panel sits in a clean room or oxygen-rich environment where silicone outgassing can foul contacts.
Electrical ratings and derating
Rated for AC operation at 50/60 Hz. The DC rating tops out at 72 V — useful for control circuits but not for high-voltage DC bus work. Power loss is 3.2 W per pole at rated current in hot operating state, so a 4-pole unit dissipates about 12.8 W total; factor that into enclosure thermal calculations if the panel is densely packed. Ambient temperature range is -40 to 75 °C, with humidity derating: max 95% RH up to 55 °C, 55% RH up to 70 °C, 35% RH up to 75 °C.