Balboa VS510Z Expansion Board – External Relay Module

Expand the capabilities of your Balboa control system with the Balboa VS510Z External Relay Expansion Board, designed to provide additional power handling for pumps, blowers, lights, or auxiliary spa features. This relay module installs alongside your existing VS510Z spa pack, allowing it to safely operate higher-load or extra components that exceed the built-in relay capacity.

If you’re upgrading spa equipment, adding accessories, or replacing a faulty relay board, this expansion module restores reliable switching performance and ensures safe communication with the main control system. Built with Balboa’s high-quality components, it’s engineered to withstand heat, moisture, and continuous use in demanding spa environments.

Perfect for technicians and spa owners needing dependable relay support for added or upgraded spa features.

Features:
✔️ Expansion relay module for Balboa VS510Z systems
✔️ Provides additional power handling for pumps, blowers, lights & accessories
✔️ Restores proper relay switching in systems with high electrical load
✔️ OEM-grade construction for long-lasting reliability
✔️ Simple installation alongside the main control pack
✔️ Ideal for equipment upgrades or replacing failed relays

Upgrade your Balboa control system with the VS510Z External Relay Expansion Board - available at Splash Pool & Spa, Peterborough’s trusted source for Balboa electronics, spa control parts, and expert troubleshooting support.