PILZ-840405 Pilz Voltage Relays

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Pilz PILZ-840405 is a protection unit designed for thermistor monitoring relay applications, featuring DIN rail mounting for easy installation. It operates within an ambient air temperature range of -10 to +55 °C and has a net height of 87 mm. This unit offers fixed screw terminal connections and requires a supply voltage of 93.5-121Vac (110Vac nominal) within the S1MN sub-range. With dimensions of W22.5mm x D121mm and a net width of 22.5 mm, it is encased in a PPO housing that provides an IP40 degree of protection. The PILZ-840405 consumes 3.5 VA of power and supports both automatic and manual reset operating modes in a normally energized configuration. It is designed for storage in environments with ambient air temperatures ranging from -40 to +85 °C. The unit includes 2 x auxiliary outputs (2CO changeover / 2xSPDT-NO/NC contacts) and 2 x analog inputs (T1-T2 measuring circuits) for comprehensive monitoring. Its protection functions are specifically aimed at overheating protection through thermistor monitoring. Additionally, it features 2 x reset circuit inputs (X2-X1) and boasts a mechanical durability of 10 million operations at no load.