Time delay relays

OFF-Delay Safety relays are used for de-energization of Frequency inverters/VSD’s prior to de-energization of redundant contactors/valves.

ON-Delays are used in applications where power must be maintained for a fixed duration after an input signal is received.

For example, driving a switch to maintain a guard door in the locked position for a fixed duration after a stop button is pressed.

Treotham offers a range of Wieland and Pilz Time delay relays. All safety relays are suitable for Safety Category 4/Pl e as per EN ISO 13849

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