SL220M single-phase fan speed controller can independently adjust the speed of outdoor fans (phase-shifted pressure regulation), and automatically adjusts the fan speed by detecting temperature, pressure or 010V (5V) input, so that the system tends to be stable and controlled, reduce noise and save energy and environmental protection.

SL220M single-phase fan speed controller summed up many years of experience and has excellent performance in anti-interference. All ports of the complete controller have passed stricter EMC tests: electric fast pulse 4kV, surge 4kV, conduction Anti-interference 150K80M.