The EZ ZONE ST integrates temperature control, power control, safety shutdown, and power disconnect in a single package. It features a PID temperature controller already connected to a high amperage solid-state relay with the option of adding a properly sized heat sink, current measurement, and over/under temperature limit, a definite purpose mechanical contactor, and digital communication. It is both modular and scalable, allowing the user to pay only for what is needed. The unit can be stacked into multiple configurations, giving users the flexibility to standardize on the product’s platform to solve a wide range of application needs. The device answers the need for reduced termination and wiring complexity, a reduction in the number of components taking up panel space, and intelligent power control.