Motorized Actuators DC 12V (Excluding Ball Valve) - AT12-50P (5-wire(6 N.M))

Product Overview

The AT12-50P operates on DC12V / 1.2A, while the AT24-50P operates on DC24V / 1A. Both models use DC contact point control and a 5-wire power configuration.

• Max. Output Torque: 60 kgf·cm

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

  • AT12-50P: approx. 4 seconds

  • AT24-50P: approx. 3 seconds

• Power Consumption (No-load): approx. 1.5W

• Mechanical Life: Approx. 100,000 cycles

• Weight: Approx. 260 g

• Rotation Direction: Closes clockwise / Opens counter-clockwise (top view)

The actuator is designed for indoor environments without condensation and operates within an ambient temperature range of -15°C to 50°C and humidity range of 35–85% RH.

Compatible Ball Valves

Applicable to ball valve sizes:

• 15A (1/2")

• 20A (3/4")

• 25A (1")

Valve Operating Conditions

Maximum Operating Temperature

• Brass Valve: 0°C to 90°C

• Stainless Steel (SUS) Valve: 0°C to 120°C

Maximum Operating Pressure: 10 kgf/cm² (142 PSI)
Application Fluid: Non-corrosive liquids and gases

5-Wire DC Control with Position Feedback

The actuator uses a 5-wire DC configuration:

• Red: DC 12V/24V (+)

• Black: DC 0V (–)

• White: Switch signal

• Yellow: Open signal output (DC 12/24V (+), 50 mA)

• Green: Close signal output (DC 12/24V (+), 50 mA)

Control Logic:

• Switch ON → Valve Opens

• Switch OFF → Valve Closes

The yellow and green signal lines allow external systems to verify whether the opening or closing operation has been completed. This feature enables system interlocking, remote monitoring, and operational safety checks.

Open/Close Indication

Valve position can be visually confirmed by the direction of the manual handle:

• Valve Open: Handle aligns with the piping direction.

• Valve Closed: Handle is perpendicular to the piping direction.

This intuitive mechanical indication provides immediate confirmation of valve status.

Manual Operation

For maintenance or emergency situations, manual override is available:

• Press the manual button.

• Turn the manual handle simultaneously to open or close the valve.

This ensures safe manual operation while protecting internal drive components.

Installation Guidelines

1. Install the actuator vertically onto a valve already fixed in the pipeline.

2. Refer to the electrical wiring diagram and connect correctly.

3. Use the yellow (open signal output) and green (close signal output) wires when configuring systems that require confirmation of operation completion.

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

5. Attach an overcurrent protection device to safeguard the circuit.

Maintenance & Safety Precautions

• Do not submerge the actuator in water. Submersion may cause malfunction or electric shock.

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

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

• Insulate unused wires properly to prevent short circuits.

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

Key Advantages

• Compact and lightweight (approx. 260 g)

• Fast operating speed (3–4 seconds)

• Long mechanical life (approx. 100,000 cycles)

• Low power consumption

• 5-wire system with open/close signal output

• Clear mechanical open/close indication

• Manual override functionality