Overview
The Belimo SY5-110 is a heavy-duty non-fail-safe electric valve actuator built for floating or 3-point control of quarter-turn valves in HVAC networks.
Features
- Floating / 3-point control setup for reliable open-close and step modulation
- Dual SPDT auxiliary switches for signaling and auxiliary interlocks
- IP66/67 and NEMA 4X enclosure for ultimate environmental protection
- Direct terminal connection layout
Specifications
- Actuator Type: Non fail-safe
- Control Type: Floating / 3-point
- Nominal Voltage: AC 120 V
- Running Time: 26 s
- Auxiliary Switches: 2 x SPDT
- Degree of Protection: IP66/67, NEMA 4X
Applications
- Operation of high-torque butterfly valves in central HVAC systems
- On/off or 3-point position control in commercial hydronic circuits


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