Replacement Motor, 24V AC

This replacement actuator is designed for Caleffi Z151000 motorized zone valve applications and compatible with Z2 and Z3 valve bodies. The unit operates on 24V AC with simple on/off control, making it ideal for HVAC zoning systems in commercial and residential installations. The actuator features a normally closed, spring-return design that automatically returns to the closed position upon power loss, providing fail-safe operation for critical applications. An integrated SPST auxiliary microswitch (0.0 A minimum, 0.4 A maximum at 24V AC) enables feedback signaling and interlock capabilities for enhanced system control and diagnostics. Construction includes a polycarbonate base and cover with aluminum base plate for durability in demanding environments. Simplified wiring is accommodated through a terminal block connection system, while a 7/8 inch knockout accepts a standard 1/2 inch conduit connector. The manual lever allows for manual operation when needed for maintenance or system testing. This actuator carries UL873 and cULus certifications and meets UL 1995 section 18 requirements for installation in air plenums and ducts. The NEMA 4X rated enclosure provides robust protection in various environmental conditions. The two-position design delivers reliable performance in zone control applications, offering straightforward integration into existing HVAC systems.