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Caleffi Z126000 120V zone valve actuator normally closed 6-inch wire

Caleffi

Caleffi Z126000 120V Normally Closed Zone Valve Actuator

SKU CH-4KVR-Y674B

A 120V normally closed zone valve actuator without a microswitch and with a 6-inch wire lead

  • 120 V normally closed actuator controls zone flow reliably
  • 6-inch wire leads simplify wiring in tight spaces
  • Caleffi brand ensures proven HVAC component quality
  • New condition guarantees full factory performance
  • Designed for hydronic zone valve applications

HVAC Zone Valve Actuator

The Caleffi Z126000 is a 120V normally closed zone valve actuator designed for hydronic heating and cooling systems. It operates without a microswitch and includes a six-inch wire lead for direct wiring. This component suits residential or light-commercial installations that require individual zone flow control.

Sustained Operation Behaviour

Under continuous power the actuator holds the valve closed until energised, then opens smoothly to allow fluid passage through the zone. The motor is rated for extended duty cycles typical of seasonal heating schedules. No microswitch means end-of-travel feedback must be handled by the external controller rather than the actuator itself.

Upgrade Context

This unit replaces a failed or outdated normally closed actuator on an existing Caleffi zone valve body. The jump is worth it when the original actuator no longer responds to thermostat calls or when wiring length demands the supplied six-inch lead. It does not fit valve bodies from other manufacturers or normally open configurations.

Highlights

  • 120 V normally closed actuator controls zone flow reliably
  • 6-inch wire leads simplify wiring in tight spaces
  • Caleffi brand ensures proven HVAC component quality
  • New condition guarantees full factory performance
  • Designed for hydronic zone valve applications

Specifications

BrandCALEFFI

Questions about this item

How much power does the 120 V actuator draw when it runs continuously?

The actuator operates on a standard 120 V supply; its continuous power draw is low because the motor only energises while the valve is opening or closing.

Which valve body must I already have for the Z126000 to fit?

The actuator is designed for Caleffi zone-valve bodies that accept a normally-closed, six-inch-wire head; confirm your valve model matches that pattern before buying.

Will the 120 V normally-closed actuator work with my existing two-wire thermostat wiring?

Yes — it uses a simple two-wire connection, so it can replace an older normally-closed head on the same thermostat circuit without rewiring.

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