FitsCaleffi Z-one zone control relays
Electric Supply120 V (AC)
Warranty2-Year Limited
The Caleffi NA10343 is an expansion transformer 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 transcribed from Caleffi North America published technical literature. Last verified August 2026.
Warranty
Caleffi 2-Year Limited Warranty. Caleffi North America warrants this product free from defects in material and workmanship for two years from the date of transfer of ownership - the point Caleffi hands the goods to the first carrier - subject to correct installation and use. Coverage runs to the purchaser identified as "Ship To" on Caleffi's order confirmation and is subject to the eligibility conditions, exclusions and remedies set out in Caleffi North America's published Limited Warranty and Terms and Conditions of Sale. This summary is provided for convenience and does not replace those documents.
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).
Caleffi 2-Year Limited Warranty. Caleffi North America warrants this product to be free from defects in material and workmanship for two years from the date of transfer of ownership (when the goods are handed to the first carrier), when installed and operated in accordance with published instructions. Coverage runs to the purchaser identified as "Ship To" on Caleffi's order confirmation and is subject to the eligibility conditions, exclusions and remedies set out in Caleffi North America's published Limited Warranty and Terms and Conditions of Sale. This summary is provided for convenience and does not replace those documents. 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)
