The Caleffi NA10343 is a 40 va transformer z-one controls for Caleffi Z-one zone control relays. It is supplied as a service component and is not a complete valve.
Best for service replacement where the parent assembly is sound.
Specifications sourced from Caleffi North America technical literature. Last reviewed July 2026.
Key Features
Dedicated Control Power
Supplies low-voltage control power for Caleffi Z-one zone controls, sized so actuators can be added without oversizing an existing transformer.
Technical Specifications
| Product Type | Control Transformer |
| Compatibility | Caleffi Z-one zone control relays |
| Electric supply | 120 V (AC) |
| Series | Z-one Valve Control |
Documentation
Frequently Asked Questions
What is Caleffi NA10343 used for?
It supplies low-voltage control power for Caleffi Z-one zone controls, sized so actuators can be added without oversizing an existing transformer.
What supply voltage does Caleffi NA10343 require?
Electric supply is 120 V (AC).
What is the warranty on Caleffi NA10343?
Caleffi covers this product under its standard two-year limited warranty against defects in material and workmanship from the date of shipment. ZOT Supply is an authorized Caleffi distributor.
- Product Type:
- Control Transformer
- Product Family:
- Z-one Zone Controls
- Series:
- Z-one Valve Control
- Compatibility:
- Caleffi Z-one zone control relays
- Electric Supply:
- 120 V (AC)