Schneider Electric 9998LH44U Push Button Switch

Schneider Electric's Square D 9998LH44U is a replacement coil for Type L multipole lighting contactors, designed to energize 110/120 VAC control circuits at 50/60 Hz. It supports Type L lighting contactors with 8 to 12 poles, enabling direct coil replacement to switch multiple lighting loads from a single coil in industrial control panels. This coil is intended for commercial and industrial lighting installations, integrating with Square D's Type L lineup to maintain existing control circuits without swapping the entire contactor assembly. The 9998LH44U designation identifies a 120 V coil variant used in 8–12 pole applications within the Square D relays and contactors ecosystem, providing a practical solution for upkeep and modernization of lighting control hardware. Typical installation involves mounting the coil on the existing contactor frame and wiring it to the control circuit, following standard electrical practices and the contactor's coil terminal layout.