FR-3
3 Stage Relay Control for HVAC systems
The FR-3 is used to convert an analogue 0-10V control signal to 3 stages of relay switching output. FR-3 offers two selectable control options:-
Option 1: Heat/Cool used to sequence control 3 functions such as FAN/COOL/HEAT
Option 2: Step control used to operate 3 stages of plant such as Boilers, Chillers, Electric Heating and particularly used for switching 3 speed fans.
Order Code
FR-3: 3 Stage Relay Control

Specification
- Power Supply: 24V AC/DC +/-10%
- Input (Signal): 0-10V DC (load 0.5mA max)
- Output Contacts: 3 x Volt free 5A at 240V AC (inductive)
- Power Consumption: 90mA max
- Selectable Options: - Heat/Cool or Off/Man/Auto
- Compatible With: HVAC-1 controller
Need more information?
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