In-Line RCD 16A Kaper (With Plug) Essential Electrical Safety for Lay-Z-Spa, CleverSpa, MSpa & Intex Hot Tub Pumps

The In-Line RCD 16A Kaper (With Plug) is a professional-grade residual current device engineered to provide essential electrical safety protection for inflatable and portable hot tub pump systems. Supplied complete with a 0.25m moulded 13A plug, this unit offers a ready-to-use solution for Lay-Z-Spa, CleverSpa, MSpa and Intex hot tub owners who require a plug-and-play RCD installation.

An RCD is one of the most critical safety components in any hot tub electrical setup. It continuously monitors the electrical current flowing through your pump system and instantly disconnects the power supply the moment a fault or leakage current is detected. For outdoor spa environments where water and electricity operate in close proximity, a dependable and correctly rated RCD is an absolute necessity.

Rated at 16 amps, the Kaper RCD is fully suited to the electrical demands of standard inflatable hot tub pumps. The inclusion of a pre-fitted 0.25m moulded 13A plug makes this unit particularly convenient for direct connection to a standard UK wall socket, eliminating the need for additional wiring work in most standard setups.

Key Features

• In-line RCD rated at 16A for hot tub pump systems
• Supplied with a 0.25m moulded 13A plug for direct connection
• Compatible with Lay-Z-Spa, CleverSpa, MSpa and Intex pumps
• Kaper-rated for reliable residual current protection
• Instantly disconnects power upon detection of electrical fault
• Compact and lightweight design — Weight: 0.41kg | Dimensions: 32 x 16 x 7 cm
• Ideal plug-and-play replacement for faulty or outdated RCD units

Compatibility

The In-Line RCD 16A Kaper (With Plug) is designed to integrate seamlessly with the pump systems of the most widely used inflatable hot tub brands available today. The pre-fitted moulded 13A plug makes it directly compatible with standard UK electrical outlets, requiring no additional wiring for most standard installations.

Compatible with:

• Lay-Z-Spa hot tub pump systems
• CleverSpa inflatable spa pumps
• MSpa portable hot tub pumps
• Intex PureSpa and compatible pump units

Lay-Z-Spa hot tubs are manufactured by Bestway. For more information on their spa systems, visit the Bestway official website. Always verify your pump’s amperage rating before installation. For a full range of compatible hot tub parts and accessories, visit 365 Hot Tubs.

Installation Guide

The In-Line RCD 16A Kaper (With Plug) is designed for straightforward installation. If you are unsure about any step, always consult a qualified electrician before proceeding.

1. Disconnect your hot tub pump from the mains power supply before starting.
2. Identify the correct inline position within the pump’s power cable.
3. Connect the RCD inline according to the wiring instructions provided.
4. Ensure the moulded 13A plug is securely connected to your mains socket.
5. Power on the system and press the RCD test button to confirm correct operation.
6. If the RCD fails to trip during testing or does not reset, discontinue use and consult a qualified technician immediately.

Why Replace Your Old or Faulty RCD?

Prolonged outdoor use exposes RCD units to moisture, heat and general wear — all of which gradually degrade performance and reliability. A failing or outdated RCD that no longer trips correctly during an electrical fault provides zero protection for your hot tub pump or its users, making timely replacement a critical safety priority.

Many existing hot tub setups still rely on older RCD units that no longer meet current safety standards. Upgrading to the In-Line RCD 16A Kaper (With Plug) ensures your spa system benefits from dependable, modern residual current protection with every use — without the need for complex installation or additional components.

Replacing a worn RCD is one of the most straightforward and cost-effective safety investments you can make for your hot tub. For a complete range of hot tub replacement parts and safety accessories, visit 365 Hot Tubs.