TCP PC3UNDBU Nema 3 Pin Photo Control

Dusk-to-Dawn Twist-Lock Photocontrol by TCP

The PC3UNDBU from TCP is a 3-pin twist-lock photocontrol designed to switch outdoor lighting on at dusk and off at dawn. It is suitable for fixtures with a matching twist-lock receptacle. Key features include a 120-277V input range and a 750VA load rating.

Key Features and Benefits of This Photocontrol

The photocell turns lights on at 10 to 20 lux and off at 60 to 80 lux, so lighting runs automatically after dark. An 8 to 15 second off delay prevents false switching from car headlights. The wide 120-277V range suits both residential and commercial circuits.

Where to Use the PC3UNDBU Photocontrol

This photocontrol suits area, street, and wall-pack luminaires that have a 3-pin twist-lock receptacle and need automatic dusk-to-dawn operation. It saves manual switching and helps keep lights from running during the day. It is rated for ambient temperatures from -40 to 80 degrees Celsius.

Installation and Compatibility Checks

Confirm your luminaire has a compatible twist-lock receptacle, and keep the total load within 750VA, or 750 watts on/off. The control fails off if it stops working. Disconnect power before installation, and have it installed by a qualified person following local code.

Additional Buying Context

The control is cULus Listed and the manufacturer lists a 5-year limited warranty against manufacturing defects. It uses a sealed relay rated for over 5,000 cycles. Check that the 3-pin base suits your receptacle before ordering.