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Product Description
The Honeywell M644B1056 is a Modutrol IV™ actuator designed for precise control in HVAC applications. Operating at 120V AC, it provides a torque output of 20 lb·ft (approximately 27.1 Nm) and features a 90° adjustable stroke. This actuator is suitable for applications requiring accurate positioning and reliable performance.
Technical Specifications
- Manufacturer: Honeywell
- Model: M644B1056
- Type: Modutrol IV™ Actuator
- Voltage: 120V AC
- Torque Output: 20 lb·ft (approximately 27.1 Nm)
- Stroke: Adjustable 90°
- Control Signal: Floating
- Auxiliary Switches: Not specified
- Mounting: Foot-mounted
- Housing: NEMA 3
- Weight: Approximately 4.6 kg
- Dimensions: 17.15 x 29.21 x 20.32 cm
- Certifications: Not specified
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Warranty Information
All Products Come With PLG Automation's 1-Year Warranty.

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