The Most Versatile Control Series in the Industry

The C5 Series electronic controls now feature our fifth generation electronic power board, the B8 power board. The new B8 board feature 'zero-crossing' technology. This means that the relays are now only engaged at the optimal zero crossing of AC power, which is easier on the relays, and easier on the components in the spa. Every trace on these boards have been carefully engineered, with low voltage circuitry separated from high-voltage circuitry, and utilizing solid brass bars instead of printed copper traces for high voltage power. This unique design ensures the safety and longevity of our control systems.

C5 control boxes ship with our dual-voltage transformers. The days of swapping out transformers to switch between 240V and 120V power hook-up are over! With the C5, incoming power voltage can be switch by moving the transformer's 2-pin power selector plug between the control board's 120V and 240V receptacles.

The C5 control series of controls come out of the box ready to operate at 120V or 240V (3-wire or 4-wire), at 50Hz or 60Hz, and configurable to 40 different hardware configurations. That makes any C5 capable of operating almost any spa, anywhere in the world, right out of the box!


C5 Models

There are 7 different models in the C5 Series, all feature the same electronics, but offer different heater configurations. The most common units are the C5-B (Bottom Heater) and C5-T (Top Heater), which feature 15" long 2" flo-thru style heaters mounted either inside the bottom of the box (C5-B) or to the top back of the box (C5-T). There is a model with a 'remote' heater, the C5-R, which features the same 15" long 2" flo-thru style heater on a 4' cable for tight installations. There is the C5-G which is designed for use with external gas heaters, and the C5-L which is designed with a special low-flow heater for use on spas with small circulation pumps. Finally, we also have the C5-V and the C5-H systems which feature our low flow heater on a 4' cable and mounting brackets that allow the heater to be mounted vertically (C5-V) or horizontally (C5-H).

Each C5 control model is available with either the entry-level T7 Command Center, the T8-S Command Center, or the T8-X Command Center.

Learn More About the T7-S Command Center »

Learn More About the T8-S Command Center »


Technical Specifications