Size S0 frame, so it mates with S0 contactors in the SIRIUS family. Rated for main circuit voltages up to 690 V AC-3, with screw-type terminals accepting 1x (16…12) or 1x (14…8) AWG for the power connections. The auxiliary contact block is separate — this relay ships with zero auxiliary contacts built in, so you add a block if you need a signal back to the PLC.
Trip class 10 is the key selection parameter: it means the relay will not nuisance-trip on normal motor inrush (which typically decays in a few seconds) but will protect the motor winding from sustained overload. If your motor starts against a heavy load or has a long acceleration time (centrifuge, crusher), you may need Class 20 or 30 — this is not that relay. The S0 frame size dictates the physical envelope: 45 mm wide, 97 mm tall, 96 mm deep. That 96 mm depth is the dimension you need to clear inside the enclosure — it projects forward from the mounting surface. Stand-alone installation, mountable on a vertical surface with ±135° rotation and ±45° tilt front/back, so panel layout is flexible. Power dissipation is 6.6 W total at hot operating state (2.2 W per pole). Surge voltage resistance rated at 6 kV, which aligns with IEC 60947-1 overvoltage category III for industrial control panels.
Thermal overload relays of this class are the standard motor protection component in motor control centers (MCCs) and individual starter enclosures. They protect three-phase induction motors in conveyors, pumps, fans, compressors, and machine tools. The ATEX approval (DMT 98 ATEX G 001) means it can be used in potentially explosive atmospheres — typically Zone 2 gas or Zone 22 dust, when paired with an appropriate contactor and enclosure. The 100 % relative humidity rating means it can operate in condensing environments (e.g., unheated warehouses, washdown areas if the enclosure is rated), though the IP20 front limits where it can be mounted exposed.
If you are sourcing for a new design, the S0 frame and Class 10 curve are widely used, so supply depth is good. Submit an RFQ for current pricing and lead time.