30W Cresnet power supply module is capable of operating at 277Vac. It is designed to snap onto standard DIN rail for installation in wall mount enclosure. DIN rail mounting enables modular installation alongside Crestron DIN Rail lighting and automation control modules and other third-party DIN rail mountable devices. All wiring connections are made using screw terminals positioned along the top and bottom, clearly accessible from the front for easy installation and servicing.