Solid-state overload relay for motor protection
The trip class is adjustable across CLASS 5E, 10E, 20E, and 30E, letting you match the tripping characteristic to the motor's starting profile — a 5E setting trips fast for short-start loads like pumps, while 30E accommodates high-inertia fans or centrifuges that need a longer acceleration ramp. The electronic overload release provides accurate, drift-free protection compared to bimetal relays, and the integrated auxiliary switch signals the tripped state via the note 'for message "tripped"'.
This relay mounts directly onto a contactor or as a standalone unit, using M10 bolts for the main current circuit and busbar connections. The dimensions are 120 mm wide, 119 mm high, and 155 mm deep — sized for the S10 and S12 overload relay frame. It accepts solid or stranded conductors of 2x (0.25... 1.5 mm²) for the control circuit.
Auxiliary contact ratings and environmental withstand
The integrated auxiliary switch is rated for 2 A at 24 V, 4 A at 120 V, and 3 A at 230 V, among other voltage points — these are the make/break capacities for the signaling contact that reports the tripped state. The relay withstands shock at 15g / 11 ms per IEC 60068-2-27, and vibration at 1-6 Hz with 15 mm amplitude and 6-500 Hz at 20 m/s² over 10 cycles. Storage and transport temperature range is -40 to +80 °C.