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