The Schneider Electric CAE31M5 is an Easy TeSys control relay with a 3 NO + 1 NC contact configuration, designed for switching control circuits in industrial panels. Its 220 V AC 50 Hz coil pulls in the armature to switch the contacts, rated for operational voltages up to 690 V. The utilisation categories AC-14 and AC-15 tell you it's built for electromagnetic loads like contactor coils and solenoid valves — not resistive heaters — so match it to the inductive kick of the control transformer or PLC output it's driving.
The TH protective treatment per IEC 60068 handles humid, tropical environments without corrosion, which is useful for plants without climate-controlled electrical rooms.
Mechanical endurance for the line
It withstands 7 Gn shocks when open and 10 Gn when closed, plus vibration up to 3 Gn at 5–300 Hz in the closed state. That means it stays latched through the jolts of a nearby press or conveyor start, without dropping out the control circuit. The operating range is -20 to 70 °C, storage from -60 to 80 °C, and it runs at altitudes up to 3000 m without derating — no need to oversize for high-altitude plants.