Weidmüller WRS 24V SIL3 safety relay

Weidmüller’s WRS 24V SIL3 safety relay is designed to be used in areas where a functionally safe switch-off is required.

Created specifically for use in the emergency shutdown of plants and plant components in the process industry, the device meets the requirements of EN61508 as well as the safety demands of Safety Integrity Level 3.

The device’s safety and monitoring circuits each have a yellow LED to indicate the functioning of the relay and ensure faultless operation of the relay. In the output of the safety circuit there is a redundant connection of three relays to guarantee reliable isolation within the output circuit.

The safety relay is fitted with gold-plated contacts and has a switching current range of from 6 mA up to 5 A. In addition, the time span between relay on and response is 4.5 ms at 230 VAC and 5.7 ms at 120 VAC.

For added flexibility and user convenience, the SIL 3 safety relay offers a rated operational voltage of 120/230 VAC at the input of the monitoring circuit. A wide temperature range of -25 up to +50ºC makes it suitable for use in numerous environments including harsh surrounds.

Highly compact, it is 92.4 (l) x 22.5 (w) x 112.4 (h) mm in size and is designed to be DIN rail mounted.