Royce Cross Group |
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KB's 21 Wall Mount, AC Motor Fan Speed Controls.
They are designed for mounting into a 2" X 4" electrical wall box. They operate from 115/230/277VAC, 50/60 Hz and have a maximum rating from 2.5 - 15 Amps at ambient from 25° to 40ºC.
They provide infinitely variable speed motor control for Shaded Pole, Permanent Split Capacitor and Universal (AC/DC) motors.
The variable speed motor control contains an on/off line switch, a high gain RFI noise suppression filter, an adjustable trimpot to set the minimum speed and a flame retardant ABS enclosure.
Applications include Ceiling Fans, Commercial Vent Hoods, Industrial Blowers, Laminar Flow Hoods, Heat Tunnels, and Magnetic Stirrers.