The relay dissipates 7 W per pole under load, so the enclosure's internal temperature rise needs to account for that heat — especially when grouping multiple relays in a compact panel. Auxiliary contact ratings are given for multiple control voltages: 1 A at 24 V, 3 A at 120 V, 2 A at 230 V, and 1 A at 400 V. These are the switching capacities for the built-in N/C and N/O contacts that signal the contactor coil or PLC input. The 400 V / 1 A rating confirms it can switch a 400 VAC control circuit directly. Surge voltage resistance is rated at 8 kV, which aligns with IEC 60947-1 overvoltage category III for industrial environments — meaning it withstands switching transients on a 400 V supply without flashover. The relay itself is not intended for washdown areas; it lives inside a panel.
Mounting is stand-alone, not DIN-rail snap-on. Clearance distances are specified: 0 mm upwards, forwards, backwards, and downwards, but 6 mm to the side — so side-by-side mounting is possible with a 6 mm gap. Dimensions are 120 mm high, 70 mm wide, and 140 mm deep. That depth includes the screw-type main terminals and the cage-clamp auxiliary terminals. The main circuit accepts solid or stranded conductors: 2× (0.5…2.5 mm²) for the auxiliary circuit, and 2× (10…50 mm²) or single 10…70 mm² for the main circuit. AWG equivalents for the auxiliary contacts are 2× (20…14).
Coordination and fusing
For Type 1 coordination (no damage to the relay under fault, but may need replacement), a gG fuse of 250 A is required upstream. For Type 2 coordination (relay remains functional after a fault), the fuse drops to 160 A gG. These values guide the upstream protection selection in the motor branch circuit.
Environmental limits
Relative humidity tolerance is 100%, so condensation inside a non-condensing enclosure is acceptable. Shock resistance is 8g for 10 ms, typical for industrial panel-mounted gear.