Overview
The Belimo SY4-230MFT is a non-fail-safe electric valve actuator designed for high-torque rotary valve operation in commercial and industrial HVAC systems. It provides flexible, programmable control for quarter-turn butterfly and ball valves.
Features
- Multi-Function Technology (MFT) for programmable control parameters
- Two built-in SPDT auxiliary switches for end-position indication
- IP66/IP67 and NEMA 4X weatherproof enclosure for demanding environments
- Terminal connection block for straightforward electrical wiring
Specifications
- Actuator Type: Non fail-safe
- Control Type: MFT / Programmable
- Nominal Voltage: AC 230 V
- Running Time: 22 s
- Auxiliary Switches: 2 x SPDT
- Degree of Protection: IP66/67, NEMA 4X
Applications
- Control of quarter-turn butterfly valves and ball valves in HVAC installations
- Commercial central cooling, heating, and fluid control loops


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