Helvar Signal Relay Unit (493)

Helvar Signal Relay Unit (493)

The 493 is a single-channel relay unit, designed to allow interfacing with other building control and management systems.

The 493 signal relay unit is in a plastic enclosure, so it can be installed within a third-party equipment enclosure, electrical cabinet, or used as an in line unit.

The relay is a solid-state, normally open signal relay, with a contact rating of 60 VAC or VDC, at a maximum of 0.5 A.

  • For integration of outputs with third-party systems
  • Provides a low-voltage, low-current, volt-free contact output (60 V, 0.5 A)
  • Signalling relay for integration with other systems
  • DALI network powered
  • Convenient wire through package with cable grip

Additional information

Weight 0.038 kg
Dimensions 110 × 40 × 21.2 mm





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