Belimo LRQ24A-SZ - rotary actuator for ball valves

Belimo LRQ24A-SZ rotary actuator

LRQ24A-SZ is a modulating actuator for ball valves, designed for stationary heating, ventilation and air conditioning installations. The Y control signal determines the valve position, while voltage U is used to electrically indicate the position and can serve as a control signal for other actuators.

Key features and specifications

• Torque: 4 Nm; travel time: 9 s / 90°.
• Rated voltage: AC/DC 24 V; rated voltage frequency: 50/60 Hz.
• Operating range of control signal Y: 0.5...10 V; position feedback signal U: 0.5...10 V.
• Power consumption during operation: 13 W; in the resting position: 2 W; power for wire sizing: 23 VA.
• Power and control connection: 1 m cable, 4x 0.75 mm².
• Manual push-button override with locking option; mechanical, removable position indicator.
• Adjustable rotation angle with mechanical stops; manual or automatic adaptation on initial power-up.
• IEC/EN protection rating: IP54; NEMA/UL protection rating: NEMA 2.
• Ambient temperature: -30...40°C [-22...104°F].

The actuator is mounted directly on the ball valve using a single central screw. The mounting position relative to the valve can be selected in 90° increments. The actuator has overload protection and stops automatically when it reaches the stop.