Description
Zodiac complete cell power supply cable R0740300
The Zodiac complete cell power supply cable R0740300 is the original replacement lead that carries low voltage power from the salt chlorinator control box
to the electrolytic cell. It is supplied fully assembled with molded connectors on both ends, so you can restore a safe and reliable connection without
any cutting or rewiring.
Main features of the Zodiac cell power supply cable
- Original Zodiac complete power cable for connecting the control unit to the salt chlorinator cell.
- Supplied with factory fitted connectors on both ends for quick, error free installation.
- Designed for continuous operation in chlorinated and saltwater pool environments.
- Ensures correct voltage delivery to the cell so chlorine production remains stable and efficient.
- Direct replacement for worn, damaged or corroded original cables on compatible systems.
Compatibility and typical applications
The R0740300 power cable is used on several Zodiac salt chlorinator families. It appears in the spare part diagrams as the complete cell power cable
and is designed to match the original plugs and sockets on both the control box and the transparent cell housing.
- Compatible with Zodiac Ei salt chlorinators (for example Ei 10, Ei 18 and Ei 25 models).
- Used on Zodiac Tri salt chlorinators in multiple production versions.
- Suitable for Zodiac Tri Expert and Tri Expert LS models.
- Used on Zodiac Hydroxinator and Hydroxinator systems for mineral pool applications.
- Also found on selected Zodiac Ei², Ei² Expert and GenSalt units depending on model version.
Before ordering, always confirm the reference R0740300 in the parts list for your specific chlorinator model and check that the connectors and cable
length match the existing part.
Technical details
- Brand: Zodiac
- Product type: Complete cell power supply cable with connectors
- Manufacturer reference: R0740300
- Former reference: Often replaces earlier Zodiac cable reference codes on the same models
- Typical application: Low voltage power connection between control unit and electrolytic cell
- Connectors: Factory molded plugs matched to Zodiac Ei, Tri, Tri Expert and Hydroxinator cells and control boxes
- Cable design: Multi core insulated cable suitable for humid technical rooms and saltwater atmospheres
- Installation location: Pool technical room, between the mounted control unit and the cell installed in the pipework
When to replace the Zodiac cell power cable
Because the power cable works in a warm, humid environment and is often bent during installation or servicing, it is exposed to mechanical and chemical
stress over time. Visible or hidden damage can lead to poor contact, overheating or error messages on the chlorinator.
- Replace the cable if the external sheath is cracked, cut or shows signs of crushing.
- Replace if connectors are discoloured, burnt or loose on either the control box or cell side.
- Consider replacement if the chlorinator shows intermittent cell power faults that are not linked to the cell itself.
- Install a new cable whenever the original lead has been extended or repaired with non original connectors.
Installation guidelines
Fitting the Zodiac complete cell power supply cable R0740300 is straightforward and can usually be done during a planned service or cell replacement.
Always follow basic safety rules when working on electrical pool equipment.
- Disconnect the power supply to the chlorinator and ensure the control box is fully de energised before starting work.
- Note or photograph the routing of the existing cable so you can reproduce a tidy path with the new one.
- Unplug the old cable from the control unit and from the cell, taking care not to twist or stress the connectors.
- Remove any cable clips or ties that hold the old lead in place and dispose of the damaged cable safely.
- Route the new R0740300 cable along the same path, avoiding sharp bends, hot surfaces and moving parts.
- Plug the molded connector into the control box and the matching connector into the cell until they are fully seated.
- Secure the cable with suitable clips or ties to relieve strain on the connectors and keep the technical room tidy.
After installation, restore power to the chlorinator and verify that the control unit detects the cell correctly and that chlorine production
starts without error messages.
Care and good practice
Good cable management and regular visual checks help extend the life of the new Zodiac cell power supply cable and reduce the risk of future faults.
- Keep the cable away from sharp edges and do not trap it behind heavy equipment or doors.
- Avoid pulling on the cable when handling the cell; always support the housing itself.
- Inspect the lead and connectors at the start of each season and after any major work in the technical room.
- Ensure that the technical area is dry and well ventilated to limit corrosion at the connectors.
With a correctly installed Zodiac complete cell power supply cable R0740300, the salt chlorinator cell receives stable power, helping to maintain
reliable chlorine production and safe operation of the system.
