Can I connect any size of the snow melting mat/cable directly to the SCV-DUAL or do I need a relay panel?

The SCV-DUAL can switch loads under 16 amps in 120V and in 240V. A relay is not required for jobs this size. In jobs using less than 16 amps, the heaters can be wired directly to the control. For jobs over 16 amps, a relay panel is required, and the heaters would be connected to the panel/s instead of directly to the control.

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