It mounts directly onto a contactor and uses screw-type terminals. The relay is rated for a thermal current of 1.25 A at up to 690 V, with a Trip Class of 20E.
The 1.25 A thermal current sets the upper limit of the motor FLA this relay can protect — it is sized for small motors, not large drives. The Class 20E trip curve is the standard for general-purpose induction motors; it allows normal starting inrush without nuisance trips. The signaling contact is rated 2 A at 24 V, 4 A at 120 V, and 3 A at 230 V — enough to drive a PLC input or a small contactor coil directly. The auxiliary switch is integrated, saving panel space.
At 45 mm wide, 87 mm tall, and 84 mm deep, this relay fits the S0 footprint common across the SIRIUS contactor range. It mounts in any position, which simplifies panel layout. The screw terminals accept 1x (0.5…4 mm²) solid or 2x (0.5…2.5 mm²) stranded, and the main circuit terminals take up to 2x 10 mm² stranded — typical for the current class. A Pozidriv PZ2 screwdriver tip is specified for the terminal screws.