Field Instruments

General

Modulating rotary actuator with fail-safe for ball valves and butterfly valves

• Torque motor 20 Nm
• Nominal voltage AC/DC 24 V
• Control modulating 2...10 V
• Position feedback 2...10 V
• Deenergised closed (NC)
• with 2 integrated auxiliary switches

Specifications

• Make : Belimo  
• Model: SRF24A-SR-S2-5
• Voltage AC/DC: AC/DC 24 V
• Auxilary Switch:2x SPDT
• Connection Supply Control: Cable 1 m, 4 x 0.75 mm²
• Connection Auxilary Switch: Cable 1 m, 6 x 0.75 mm²
• Torque: 20 Nm
• Control type:DC 2…10 V
• Direction of Motion Motor:Y = 0 (0 V = A – AB = 0%)
• Direction of rotation (fail-safe): Deenergised NC, valve closed (A – AB = 0%)
• Manual override: By means of hand crank and locking switch
• Running time (motor): 90 s / 90°
• Running time (fail-safe):<20 s
• Protection category: IP54
• Degree Of Protection NEMA: NEMA 2
• Enclosure Type:UL Enclosure Type  2
• Ambient Temperature: -30...50°C [-22...122°F]