Thermal Overload Relay for Motor Protection
It is a standalone-mount unit with screw-type terminals for the main circuit, accepting 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid or stranded wire. Rated voltage is 690 V, with corresponding motor power ratings of 7.5 kW at 400 V, 11 kW at 500 V, and 15 kW at 690 V. At 480 V and 600 V the current rating is 20 A. The auxiliary switch is integrated and carries the following contact ratings: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, and 0.75 A at 690 V — these are the values you'd use for the trip-indication circuit back to the PLC or annunciator.
The relay measures 97 mm high, 45 mm wide, and 95 mm deep — the S0 footprint that drops into a standard motor starter assembly or stands alone on a panel plate. Main circuit terminals accept M4 screws; the screwdriver spec is Pozidriv PZ2 with a 5–6 mm shaft diameter.