This reliable interface unit allows integration of non-dimmable loads into a DALI lighting control system, offering flexible switching control for loads such as heaters, fans, or power circuits.

The Helvar 494 Relay Unit is part of the Helvar Imagine DALI system and is designed for DIN rail mounting, making it ideal for installation in control cabinets and professional lighting systems.

Lighting Control Solution: Imagine
Lighting Control Protocol: DALI lighting control
Device Mounting Method: DIN rail
Relays: 4 independent, volt-free, normally open
Maximum Load (per relay): 10 A (resistive)
Internal Isolation: Separate phases can be switched within the same unit
Manual Override & Indicators: Includes a physical selection switch and individual relay state LEDs

Dimensions: 88 × 58 × 90 mm
Weight: 300 g
Power Supply: 220–240 VAC, 50/60 Hz
DALI Consumption: 2 mA
Protection / Rating: IP30, Class II
Compliance: DALI-2 certified, CE, RoHS