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Universal compatibility with the 14004878-910/U specification simplifies inventory and procurement for contractors
This setup allows for simultaneous status signaling (NO) and electrical interlocking (NC) to prevent short circuits or to provide "run/fault" status feedback to a head-end controller
Key Benefits for the Contractor: High-Pressure Durability: Optimized for 125 PSI seat differential pressure
Wide Operating Range: Performance-tested for temperatures ranging from -40°F to 250°F to handle extreme environmental conditions
Siemens Building Technology SFA71U/25G Actuator 319825-402 Universal compatibility with the 14004878-910/UThe Siemens SFA71U 25G Actuator is a professional grade 2 position zone valve actuator designed for reliable control in hydronic systems. Engineered for seamless integration with the Siemens 599 Series zone valves, this 24V normally closed actuator provides a robust 105 N force to ensure tight shut off in high demand HVAC applications. This spring return valve actuator facilitates a mechanical fail safe in the event of power loss, making it a critical
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