Motorized Actuators DC 24V (Excluding Valve) - AD24-3TC (3-wire(Auto Return))

Product Overview

The AD12-3TC operates on DC12V (2A), while the AD24-3TC operates on DC24V (2A). Both models utilize a 3-wire DC contact control method, allowing the actuator to operate via switch-based control.

• Max. Output Torque: 200 kgf·cm

• Operating Time (90° rotation, no-load):

  • AD12-3TC: approx. 15 seconds

  • AD24-3TC: approx. 10 seconds

• Mechanical Life: Approx. 40,000 cycles (may vary depending on usage environment)

• Weight: Approx. 950 g

• Power Consumption (No-load):

  • AD12-3TC: approx. 3.5W

  • AD24-3TC: approx. 4.5W

• Standby Power: approx. 0.5W

The actuator closes clockwise and opens counter-clockwise (top view orientation). It is designed for indoor environments without condensation and operates within a temperature range of -15°C to 50°C (35–85% relative humidity).

Compatible Valves & Operating Conditions

The actuator can be assembled with:

• Ball Valves: 32A, 40A, 50A

• Butterfly Valve: 50A wafer type

Valve Operating Specifications

Ball Valve

• Operating Temperature: 0°C to 120°C

• Application Fluid: Non-corrosive liquids and gases

Butterfly Valve

• Operating Temperature: 0°C to 90°C

• Application Fluid: Non-corrosive water and liquids

Maximum Operating Pressure: 10 kgf/cm² (142 PSI)

These specifications ensure stable performance in standard fluid control applications involving non-corrosive media.

3-Wire DC Contact Control System

The actuator uses a 3-wire DC power configuration:

• Red: DC positive (+)

• Black: DC negative (–)

• White: Switch signal

Operating logic:

• Switch ON → Valve Opens (○)

• Switch OFF → Valve Closes (×)

• Power Failure → Valve Closes automatically (fail-safe close)

This configuration allows easy integration with external switches, relay panels, or PLC-based control systems.

Open/Close Status Indication

The actuator is equipped with a mechanical display window and a green indicator lamp for visual confirmation of valve position:

• Open Position: Circle (○) displayed and green lamp ON

• Closed Position: Cross (×) displayed and lamp OFF

This dual indication system ensures quick and intuitive monitoring in field installations.

Manual Override Function

For maintenance or emergency situations, a manual override lever is provided:

1. Pull the manual lever upward.

2. Rotate the actuator body clockwise (Open → Close) or counter-clockwise (Close → Open).

Important notes:

• During manual operation, the display window and indicator lamp do not change position or status.

• After manual operation, the fixing pin attached to the manual lever must be returned to its original position.

Installation Guidelines

• Install the actuator vertically on a valve already secured in the pipeline.

• Follow the wiring diagram to ensure proper electrical connection.

• For DC12V models, ensure a power supply of DC12V/3A or higher when integrating with compatible systems.

• Install a disconnecting device or switch for emergency power-off.

• Use an overcurrent protection device to safeguard the circuit.

When powering on for the first time after installation or after long inactivity, allow approximately 3 minutes for charging before operation. After performing an opening operation, wait at least 2 minutes before executing a closing operation to maintain stable performance and extend service life.

Maintenance & Safety Precautions

• Do not submerge the actuator in water, as this may cause malfunction or electric shock.

• Avoid impact damage and exposure to fire or explosion hazards.

• Do not operate the actuator in the opposite direction before the previous operation has fully completed, as this may shorten its service life.

• Storage and transportation temperature range: -25°C to 55°C.

• Avoid operating in environments exceeding 65°C.

Key Advantages

• Strong 200 kgf·cm torque output

• Stable 3-wire contact control system

• Fail-safe automatic closing during power loss

• Compact, lightweight structure

• Low power consumption and low standby power

• Clear mechanical and visual position indication

• Manual override capability

• Approx. 40,000 cycle durability