ROTARY LIMIT SWITCHES 

Allow for user definable preset stops for the "Full Close" and "Full Open" pre-set positions. 

MAGNETIC CONTROL 

Provides Start/Stop/Reverse control of the machine. Compatible with most automation systems. LVCS Low Voltage Control 24 VAC standard. 

DISCONNECT SWITCH 

Toggle switch which removes power to machine’s internal circuitry. 

GROOVED CABLE DRUM 

Assures positive drive without cable slippage. Coated wire-center cable must be used. Drum must be at least 14' from track live-end pulley, or last pulley in system to allow cable to wind properly on drum. 

CABLE TENSION DEVICE 

Automatically helps eliminate cable slack. Also helps retain cable within grooves of drum. 

EMERGENCY HAND CRANK 

Facilitates hand operation of curtain in case of mechanical or power failure. 

CONTROL SWITCHES 

Three-button type and marked Open, Close and Stop. No limit to number of control stations that can be used. Two supplied with each machine, one built on the machine and one to use as a remote control station. 

OVERLOAD PROTECTIVE BREAKER 

Automatic type helps protect machine, track and curtain against effects of accidental overload. Must be manually reset. 

THERMAL OVERLOAD 

Built into some motors to help prevent possible damage to the motor due to overheating (furnished on some single phase motors only). 

SAFETY RELAY 

Prevents single phase motor from continuing to run in the same direction when a push-button is pressed at the same instant the limit switch is tripped.