ASCO AH4E212A4 120V Three-Position Electrohydraulic Hydramotor Actuator
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The ASCO AH4E212A4 is a three-position push-type, self-contained electrohydraulic linear Hydramotor actuator engineered for reliable main line gas control in boilers, furnaces, ovens, and various industrial or commercial burners. Featuring dual internal control valves for highly repeatable positioning, this actuator travels to an adjustable low-fire position when powered, and proceeds to high-fire when an external controller circuit is completed. For maximum safety, any power interruption fully closes the valve in one second or less from any position. When combined with a V710(B) gas valve, it provides a highly robust combustion control solution. Please note: This product was discontinued by the manufacturer on November 20, 2025.
- Manufacturer: ASCO
- Part Number: AH4E212A4
- Product Status: Discontinued by manufacturer (as of November 20, 2025)
- Product Type: Three-Position Electrohydraulic Linear Actuator (Push-Type)
- Electrical Specifications: 120V / 60 Hz
- Power Requirements: 220 VA maximum
- Stroke Positioning: Low-fire position factory set at stroke midpoint (field adjustable between 15% and 100% of stroke)
- Opening Time: Fast Opening: 14 seconds maximum / Slow Opening: 26 seconds maximum (Opening time doubles between -30°F and -40°F; increases 20% on 50Hz)
- Closing Time: 1 second maximum upon power interruption
- Ambient Operating Temperature: -40°F to 150°F
- Applications: Boilers, furnaces, ovens, and all types of industrial and commercial burners
- SKU ASCOAH4E212A4
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