What is the Operating Voltage?

What is the Operating Voltage?

We differ basically between DC and AC solenoids. As alternating voltage is more frequently available, it would seem obvious to give preference to the AC solenoids. However, from a certain size the latter have definite disadvantages in comparison to the DC solenoids in terms of lifetime and magnetic force, so that DC solenoids with intermediate rectifiers are preferred.

This voltage rectifier is integrated in the electrical connector or within the solenoid. The main advantage of the DC solenoid is its constant current consumption, which leads to smooth switching and a coil that can cope with mechanical obstructions.  

Voltage surges (inductive peaks) can be avoided by connecting a varistor, diode or RC-network in parallel. 

The voltage tolerances permitted are ±10 %. If AC solenoids designed for 50 Hz have to be used with 60 Hz, this entails a reduction in performance. In such cases our technical services should be consulted beforehand. DC coils supplied via rectifiers can be operated between 40 and 60 Hz.