Fail PositionNormally Closed
Warranty2-Year Limited
The Caleffi 656504 is a thermo-electric actuator, 24V.
Best for adding or replacing actuation on an installed Caleffi zone valve body.
Specifications transcribed from Caleffi North America published technical literature. Last verified August 2026.
Warranty
Caleffi 2-Year Limited Warranty. Caleffi North America warrants this product free from defects in material and workmanship for two years from the date of transfer of ownership - the point Caleffi hands the goods to the first carrier - subject to correct installation and use. Coverage runs to the purchaser identified as "Ship To" on Caleffi's order confirmation and is subject to the eligibility conditions, exclusions and remedies set out in Caleffi North America's published Limited Warranty and Terms and Conditions of Sale. This summary is provided for convenience and does not replace those documents.
Key Features
Thermo-Electric Actuation
A heated element drives the valve open or closed on a low-voltage signal, silently and without a motor.
Technical Specifications
| Product Type | Thermo-Electric Actuator |
| Fail Position | Normally Closed |
| Ambient temperature range | 32 to 140 °F (0 to 60 °C) |
| Control signal | ON/OFF |
| Power consumption at full capacity | 1 W |
| Protection class | IP 54 |
| Supply cable length | 1 m |
Documentation
Related Products
- Caleffi 656344 : TwisTop Actuator 24V
- Caleffi 656354 : TwisTop Actuator 24V + Microswitch
- Caleffi 656524 : Actuator 24V
Frequently Asked Questions
What does Caleffi 656504 do?
It is a thermo-electric actuator. A heated element opens or closes the valve on a low-voltage signal, silently and without a motor, and it mounts directly to a Caleffi zone valve body.
Caleffi 2-Year Limited Warranty. Caleffi North America warrants this product to be free from defects in material and workmanship for two years from the date of transfer of ownership (when the goods are handed to the first carrier), when installed and operated in accordance with published instructions. Coverage runs to the purchaser identified as "Ship To" on Caleffi's order confirmation and is subject to the eligibility conditions, exclusions and remedies set out in Caleffi North America's published Limited Warranty and Terms and Conditions of Sale. This summary is provided for convenience and does not replace those documents. ZOT Supply is an authorized Caleffi distributor.
- Product Type:
- Thermo-Electric Actuator
- Product Family:
- Pressure Independent Control Valves (PICV)
- Fail Position:
- Normally Closed
- Control Signal:
- On/Off
