Extremely Economical for Snow Melting Applications. Nema 1 UL listed Panel Box (Indoor Rating). 50 AMP Capacity (One 50 AMP Contactor). Aerial Mounted Automatic Snow Switch. Pre-Wired and Numbered Terminal Connections. Wired Remote Operation & LED Status Panel. Wiring Diagram. "Heat On" Pilot Light. 90 Minute Hold Time. 4 Hour Manual Override Timer.