Caleffi 656414 Thermo-Electric Actuator 24V with Auxiliary Microswitch

The Caleffi 656414 is a thermo-electric actuator designed to mount on zone valves or manifolds, providing automatic shut-off control of the heating medium through a room thermostat or electrical switch. This actuator works with Caleffi PEX heating manifolds, allowing you to control each port individually and create separate zones wired to thermostats. It's ideal for radiant heating applications, hydronic radiators, and hydronic fan convectors.

Key Features:

• Low current draw design, ideal during the start-up phase
• 250 mA starting current, 125 mA holding current
• Equipped with valve opening/closing indicator
• Quick-coupling system with retainer clip adapter for easy installation
• NEMA 5 protection rating allowing upside-down installation
• Auxiliary microswitch for enhanced control
• 31.5-inch wire lead included

Technical Specifications:

• Voltage: 24V AC
• Power Consumption: 3 watts
• Opening Time: 300 seconds at 80%, 600 seconds at 100%
• Closing Time: 240 seconds
• Operating Temperature: 40°F to 170°F
• Ambient Temperature: 32°F to 120°F
• Dimensions: 2-3/4" H x 2-3/8" diameter
• Body Material: Self-extinguishing polycarbonate, gray

This actuator replaces the discontinued Caleffi model 656114. The compact design and low power consumption make it an efficient choice for residential and light commercial hydronic heating zone control applications.