The ETI SC-40C 277 Volt 1-Phase Satellite Contactors are designed to be used along with the ETI APS-4C snow and ice melting control to allow for a modular snow melting system design. There is no limit to the number of SC-40 contactors that can be interfaced into a single snow and ice melting system.
Modular power control of automatic snow melting systems
No limit to the number of SC-40 contactors that can be interfaced into a single system
Staged heater operation for high power quality
Energy management computer (EMC) interface
Accommodates MI, constant wattage and self limiting heaters
Advanced patented and patent pending Ground Fault Equipment Protection (GFEP) as required by the USA and Canadian National Electric codes
10 hour adjustable heater hold-on timer to ensure complete melting
The SC-40C satellite contactors do not directly use snow and ice sensors but rather the contactors are notified of snow conditions by the master ETI APS snow and ice melting controller.
ETI SC-40C 277 Volt 3-Phase Satellite Contactor Installation Instructions
ETI SC-40C 277 Volt 3-Phase Satellite Contactor Data Sheet