HERZ Electric Rotary Actuator for 2-Way Ball Valve, 2/3-Point or 0–10 V, 24 V AC/DC, 8 Nm, 1771235

The HERZ 1 7712 35 is a high-quality electric rotary actuator designed for automatic control of HERZ regulating ball valves in heating, cooling and HVAC systems. It provides precise flow and temperature control together with reliable and quiet operation.

This model is designed for 24V power supply and supports both 2-point and 3-point control. The built-in synchronous motor with electronic protection ensures reliable operation and automatic end-position shut-off. Manual override is also available using the integrated lever.

Main Advantages

• 24V power supply
• 2-point and 3-point control
• Precise flow regulation
• Manual override function
• Quiet operation
• Maintenance-free mechanism
• Easy installation on HERZ valves
• Suitable for HVAC systems

Technical Information

• Model: 1 7712 35
• Type: Rotary actuator for ball valves
• Compatible with: HERZ 1 2117 series valves
• Voltage: AC/DC 24 V ±15%
• Frequency: 50–60 Hz
• Control: 2-point / 3-point
• Torque: 8 Nm
• Rotation angle: 90°
• Response time: min. 200 ms
• Running time: 120 s
• Power rating: 5 VA
• Power consumption: 2.5 W
• Cable length: 1.2 m
• Protection rating: IP54
• Protection class: III
• Ambient temperature: -10°C to +55°C
• Max. medium temperature: +100°C
• Humidity: 5–95% RH non-condensing
• Weight: 0.7 kg
• Manual override: yes
• Mounting position: vertical or horizontal