Manual Speed Control (MSC-4)

An inexpensive variable speed fan or motor control

The Manual Speed Control (MSC-4) is a simple and effective way to control fan motors. The MSC-4 allows you to manually adjust the speed of ventilation and heat exchanger equipment.

The MSC-4 can also be used as a light dimmer for brooder heat lamps and can power up to five 250-watt lamps.

The MSC-4 is ideal for poultry, livestock, greenhouse, or light-industrial buildings.

Features

One variable speed output
ON/OFF switch
Adjustable HIGH/LOW settings
Overload protection fuse
Rugged enclosure (corrosion resistant, water resistant, and fire retardant)
CSA approval
Two-year limited warranty

Electrical ratings

Input:
Variable stage:

Variable stage fuse:

120/230 VAC, 60 Hz
12.5 A at 120/230 VAC, general-purpose (resistive)
9 FLA at 120/230 VAC, PSC motor
1/2 HP at 120 VAC, 1 HP at 230 VAC, PSC motor
1500 W tungsten at 120 VAC
15 A, 250 VAC ABC-type ceramic

Additional information

MSC-4 user manual (PDF - 106K)
MSC-4 feature sheet (PDF - 118K)
Ventilation control overview (PDF - 35K)

Last modified: