Product Description
Honeywell M7284C1000 is a Modutrol IV proportional modulating damper actuator, non-spring return type. It accepts 4-20mA analog control signal and converts electrical signal into shaft rotation to continuously adjust dampers or control valves. Built-in power transformer and oil-immersed gear train ensure high reliability. It features dual-ended square output shaft, foot mounting design and 2 adjustable internal auxiliary microswitches. Stroke is field adjustable from 90° to 160°, factory preset at 90°, nominal stroke time 30~60 seconds. NEMA 3 enclosure. It is widely used for gas and air damper ratio control in industrial combustion systems and serves as common spare parts for boiler combustion control.
Specifications
- Brand: Honeywell
- Model: M7284C1000
- Type: Modutrol IV Proportional Damper Actuator (Non-Spring Return, NSR)
- Power Supply: 120V AC, 50/60Hz, integral transformer
- Control Signal: 4-20mA (2-10VDC compatible)
- Torque: 150 lb-in (17 Nm)
- Shaft: Dual-ended 10mm (3/8 in) square shaft
- Stroke: 90°~160° field adjustable, factory preset 90°
- Stroke Time: ~30s for 90°, ~60s for 160°
- Rotation: Clockwise (viewed from power end) with rising control signal
- Auxiliary Switches: 2 adjustable internal SPDT switches
- Ambient Temperature: -40℃ ~ +66℃
- Enclosure Rating: NEMA 3
- Mounting: Foot-mounted
- Lifecycle Status: Active spare part; new, refurbished and used units available
Application
Mainly applied to industrial boilers, burners, hot blast stoves and HVAC systems. It drives gas dampers, air louvers and proportional control valves to continuously regulate gas-air ratio for stable combustion and fuel saving. Widely used in thermal power plants, petrochemical plants, printing & dyeing factories, food processing plants for combustion system maintenance and retrofit.
Similar Series Models
- M7284A1004: Modutrol IV, 120V, 4-20mA, 150lb-in torque
- M7284A1012: Modutrol IV,120V,4-20mA,different auxiliary switch configuration
- M7284A1038: Modutrol IV,120V, shorter stroke time,75lb-in torque
- M7294A1001: Modutrol IV higher torque version
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