Relay expansion module ESM

• Emergency stop button input • Dual channel volt free contact • LED and Volt Free Contact Indication • 35mm DIN Rail Mounting • 17.5 mm wide The ESM module gives the option to add additional emergency stop buttons to the EM1 control unit and maintain CAT4 SIL3 PLe performance. The ESM connects via a built in 6-way strap to the adjacent EM1/ESM module. The ESM accepts 2 closed contact inputs from either an emergency stop button or mechanical safety switch (locking or non-locking) Indicator LED’s on the ESM provide diagnostic information along with volt free contact status indicator.