Leviton Mfg Co 028-07090-00M Turn Knob Lamp Socket 250W

Product Description

The LEVITON MFG CO 028-07090-00M is an interior turn knob lamp socket designed for electroiler-style 2-circuit, 2-filament lamp applications, commonly referred to as 3-way bulb setups. The socket provides four switching positions: low, medium, high, and off. Screw terminals are backed out for easy wiring, and the mandrel is insulated from the mechanism with a 4-36 threaded knob mount. The knob is furnished with the socket. Rated at 250 watts and 250 volts, this socket is UL listed for safe, compliant use in residential and commercial interior lighting assemblies. Electricians and lighting fixture technicians are the typical installers.

This socket fits a 1-13/16 inch diameter socket cup and is intended for interior lighting applications where turn knob control of a 3-way lamp is required. Typical scenarios include table lamps, floor lamps, and decorative lighting fixtures that use 2-filament 3-way bulbs. The electroiler 2-circuit design allows stepped brightness control without a dimmer switch. Sold in packages of 25 units, making it practical for stocking by electrical contractors or fixture repair shops.

Key Features

• Turn knob control with four positions: low, medium, high, and off
• Electroiler 2-circuit design supports 2-filament 3-way lamps
• Screw terminals backed out for straightforward wire connection
• Mandrel insulated from mechanism, threaded 4-36 for knob mounting
• Knob included — no additional hardware required
• UL listed at 250 watts and 250 volts

Compatibility

Fits a 1-13/16 inch diameter socket cup. Designed for interior lighting fixtures that accept 2-filament 3-way lamps in an electroiler 2-circuit configuration.

Installation Notes

Installation is typically performed by a licensed electrician or qualified lighting fixture technician. Always de-energize the circuit at the breaker before removing or installing a lamp socket, and verify with a non-contact voltage tester before handling wiring. Follow NEC requirements for fixture wiring methods and conductor connections at screw terminals. Do not exceed the rated 250 watt and 250 volt limits for the socket.