Description

The ECM INDUSTRIES LLC GSW-39 is a brass-plated pull chain switch designed for variable speed fan control in residential lighting and ventilation fixtures. Rated at 6 amps and 125 volts AC with a double-pole, 3-throw (DP3T) configuration, it provides four switching positions: Off, On A, On B, and On A+B. This switching logic supports multi-speed fan motor control by selectively engaging one or both motor windings. The switch ships with 6-inch wire lead connections for straightforward in-fixture wiring. It is typically installed by electricians or HVAC technicians performing ceiling fan, exhaust fan, or light kit repairs.

The GSW-39 is suited for residential ceiling fans, bathroom exhaust fans, and similar single-phase 125-volt AC motor applications requiring a 3-speed pull chain control. The recommended mounting hole diameter is 13/32 inches, which is a standard dimension for most consumer and light commercial fan housings. Wire lead length of 6 inches provides adequate slack for connection inside a standard fan canopy or fixture housing. Package quantity is 5 units per pack, making it practical for service contractors stocking replacement hardware.

Key Features

Brass-plated construction for corrosion resistance in fixture environments
DP3T switching logic: Off, On A, On B, On A+B for variable speed motor control
Rated 6 amps at 125 volts AC
6-inch wire lead connections included for in-fixture wiring
Mounts in standard 13/32-inch diameter hole
Packaged 5 units per pack for service stock

Compatibility

Designed as an OEM-style replacement pull chain switch for residential ceiling fans and exhaust fans utilizing a 3-speed, 125-volt AC single-phase motor with a standard 13/32-inch mounting hole.

Installation Notes

Installation is typically performed by a licensed electrician or qualified HVAC technician. Always disconnect power at the circuit breaker before opening the fan canopy or fixture housing. Verify that the replacement switch rating matches the existing motor load before wiring. Follow applicable NEC guidelines for fixture wiring and ensure all wire lead connections are fully seated and insulated before restoring power.