SPI 60A809 Tecmark TBS454 Internal Air Switch | Pump Professionals

Description

The SPI 60A809 is a Tecmark TBS454 internal air switch designed for reliable, air-pressure-activated switching in aerobic septic treatment systems. Unlike external switch configurations, this unit mounts directly inside the control panel, providing a clean, protected installation that keeps critical switching components away from the elements and reduces the risk of accidental damage or tampering.

As a Tecmark internal pressure switch, the TBS454 operates by responding to changes in air pressure transmitted through a dedicated air line, triggering an on/off switching action without any direct electrical contact at the activation point. This makes the Tecmark TBS454 air switch internal design inherently safer and more durable in wet or humid environments. The SPI 60A809 is built to handle the demands of continuous-duty cycling, with robust internal contacts rated for dependable long-term performance across repeated switching events common in aerobic treatment applications.

The internal air switch septic applications for this unit are broad. It is well-suited for use in aerobic treatment unit (ATU) control panels where the switch must respond to pump operation, float activation, or timed air pressure signals. As an aerobic treatment air switch, the TBS454 integrates smoothly with standard control panel wiring and is compatible with a wide range of Norweco, Jet, and similar ATU systems that rely on internal panel-mounted switching. It is also a practical direct replacement for aging or failed internal switches in existing panels, making it a go-to component for service technicians maintaining residential and light commercial aerobic septic systems.