Description
The Caleffi Z151000 is a premium 24 V AC normally closed valve actuator engineered for precision control in residential and commercial hydronic heating and cooling systems. Designed to work seamlessly with Caleffi motorized zone valves (such as Z2 and Z3 series), this actuator delivers dependable on/off operation and automatic spring return for safety and efficiency.
Built to meet rigorous industry standards, the Z151000 comes with a built-in SPST auxiliary microswitch for feedback or control logic integration, and a terminal block connection that simplifies installation and wiring. Whether you’re upgrading an existing system or building a new hydronic zone, this actuator provides the reliability HVAC professionals trust.
Key Features:
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Normally Closed Spring-Return Design — Automatically returns to a closed position when power is removed for fail-safe performance.
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24 V AC Operation — Optimized for standard low-voltage HVAC control circuits.
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Auxiliary Microswitch — Integrated SPST switch (0.4 A @ 24 V) enables control feedback or interlock signals.
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Terminal Block & Conduit Ready — Easy screw terminal wiring with 7/8″ knockout for 1/2″ conduit connector.
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Compact & Durable — Rugged polycarbonate body and reliable internal mechanism for long-term use
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Certified & Approved — UL873, cULus Listed, and CE certified for safety and performance.
