Schneider Electric ZBV-G4 (also listed as ZBVG4) is a red 22 mm Harmony indicator light module with an integral LED designed for use with Harmony XB4/XB5 22 mm push-button heads. It operates from 110–120 VAC and uses screw-clamp terminals for straightforward wiring. The built-in LED provides a clear red status indication directly from the push-button head, eliminating the need for an external lamp. As the red LED light module for 22 mm heads in the Harmony family, the ZBV-G4 is the 110–120 VAC option compatible with standard screw-terminal wiring.
