491 2 A Relay Unit (Discontinued)
491 2 A Relay Unit (Discontinued)
Single channel relay unit for integration in luminaires or electrical cabinets. Designed to allow control of switched
491 2 A Relay Unit (Discontinued)
technical specifications
491 2 A Relay Unit (Discontinued)
Single channel relay unit for integration in luminaires or electrical cabinets. Designed to allow control of switched loads.
Lighting controls from
Helvar

Technical Data

Lighting Control SolutionImagine
Lighting Control ProtocolDALI lighting control
Device Mounting MethodIndependent
Dimensions146 mm × 21 mm × 18.3 mm
Number of channels1
Power supply rating200 VAC – 265 VAC (absolute) 45 Hz – 65 Hz