Dwyer Instruments DDC42 | Damper actuator | 8 Nm | 230 VAC
Genuine Dwyer Instruments DDC42 Non-Spring Return Direct Coupled Actuator, in stock at General Tech Services LLC, UAE. It delivers 70 in-lb (8 N·m) of torque from a 230 VAC supply and accepts 0-10 VDC or 4-20 mA modulating control signals for positioning dampers and valves in HVAC systems. Free UAE-wide shipping.
Request a quote in under a minute - call +971 6 5436933.
Part No. DDC42
The Dwyer DDC42 is a non-spring return direct coupled actuator designed for positioning dampers and valves in HVAC systems requiring modulating control. It provides 70 in-lb (8 N·m) of torque and operates from a 230 VAC, ±10%, 50/60 Hz, single-phase supply.
The actuator accepts 0-10 VDC or 4-20 mA modulating control signals and provides 0-10 VDC position feedback. Its mechanically adjustable 95° rotation, visual position indicator and push-button manual override support straightforward setup and operation.
The DDC42 also incorporates magnetic clutch overload protection and a compact straight-mount design. It is rated for approximately 60,000 full cycles and accommodates 0.4" (10 mm) or 0.5" (13 mm) damper shafts. An optional internal auxiliary switch is available for the actuator family.
Key Benefits
- 70 in-lb (8 N·m) torque for damper and valve positioning
- 230 VAC power supply, ±10%, 50/60 Hz, single phase
- Modulating control using 0-10 VDC or 4-20 mA signals
- 0-10 VDC position feedback for control-system monitoring
- Mechanically adjustable 95° rotation for flexible installation
- Visual position indicator for quick operating-status checks
- Push-button manual override for convenient manual positioning
- Magnetic clutch overload protection to protect the actuator during operation
- Compact direct-coupled design for HVAC dampers and valves
- Approximately 60,000 full-cycle operating life
- Genuine Dwyer stock with free UAE-wide shipping
Who This Product Is Best For
The Dwyer DDC42 is suitable for:
- HVAC contractors requiring a compact direct-coupled actuator for dampers or valves
- Applications using 230 VAC control panels with modulating operation
- HVAC systems requiring 0-10 VDC or 4-20 mA control
- Retrofit projects involving existing small dampers or valves
- Applications requiring 0-10 VDC position feedback
- Installations where direct coupling and adjustable 95° rotation are required
How to Specify & Commission It
- Confirm the torque requirement — Verify that the DDC42's 70 in-lb (8 N·m) torque rating is suitable for the damper or valve.
- Check the shaft size — Confirm compatibility with the available 0.4" (10 mm) or 0.5" (13 mm) shaft.
- Direct-couple the actuator — Mount the actuator to the damper or valve shaft using the actuator body setscrew.
- Connect the power and control wiring — Wire the terminal block to the control system using the specified 230 VAC supply and appropriate 0-10 VDC or 4-20 mA control signal.
- Connect position feedback — Where required, connect the 0-10 VDC feedback signal to the control system.
- Set the rotation range — Adjust the mechanical rotation stop within the 95° operating range.
- Test operation — Command the actuator through its operating range and verify movement, feedback and the visual position indicator.
Frequently Asked Questions
What torque does the Dwyer DDC42 provide?
The DDC42 provides 70 in-lb (8 N·m) of torque.
What power supply does the DDC42 require?
It requires 230 VAC, ±10%, 50/60 Hz, single phase.
What control signals does the DDC42 accept?
It accepts 0-10 VDC or 4-20 mA modulating control signals.
Does the DDC42 provide position feedback?
Yes. The actuator provides 0-10 VDC position feedback.
What is the rotation angle?
The DDC42 has a mechanically adjustable 95° angle of rotation.
Does it have a manual override?
Yes. A push-button manual override is provided.
How is the actuator protected against overload?
The DDC42 uses magnetic clutch overload protection.
What shaft sizes are supported?
The actuator accommodates 0.4" (10 mm) or 0.5" (13 mm) shaft diameters.
What is the expected operating life?
The DDC42 is rated for approximately 60,000 full cycles.
Is genuine Dwyer stock available in the UAE?
Yes. Genuine Dwyer stock is available through General Tech Services LLC, with free UAE-wide shipping. Call +971 6 5436933 for current pricing and availability.
Request a Quote Today
For pricing, stock availability or ordering assistance, contact General Tech Services LLC, UAE.
Call +971 6 5436933
Free UAE-wide shipping on genuine Dwyer stock.
