1. V8DADHHC-EHH00-000 Substitution Conclusion The V8DADHHC-EHH00-000 can fully replace the original model V8D1WHHB-CHB00-000, as both share identical key electrical specifications: SPDT circuit, momentary switching function, 20A DC current and 12V voltage ratings, illumination type and voltage, wiring configuration, IP66/IP68 protection rating, panel cutout dimensions, and mechanical/electrical endurance. The only difference lies in the actuator color—black for the original and gray for the new model. This color variation is purely cosmetic and does not affect electrical performance or installation compatibility. Therefore, in applications where color matching is not required, the new model can serve as a direct drop-in replacement without any change in functionality or reliability.