Zelio SSLM solid state relays are ready to use modular relays with SCR/MOSFET outputs for greater switching density. The unique IP20 housing design and integrated heat sink with no exposed metal surface offers compactness and enhances operating conditions of the relay. SM relays are DIN rail mounted and available with zero voltage switching for resistive load and random switching for inductive load applications. This output module is turned on with the application of of voltage. This module will accept from 4 VDC to 28 VDC. This module will switch 3A from 4 VDC to 60 VDC. Output module has a red housing. Output module is 3.15 inches tall, 0.3 inches wide and 2.48 inches deep. The module weighs 0.07 lbs. Output module is UL component recognized and CSA certified.