TCW Smartstart Module

The TCW SmartStart SS-12V is an electronic control module for aircraft engine starter systems. It is designed to control a standard aviation starter contactor and support integration with a control-stick start switch or panel-mounted start switch.

The module provides interlocked, time-limited starter operation to help reduce unintended starter activation. An arming input and optional interlock input support configured start-system logic, while the integrated one-minute timer limits the starter-enable period after arming.

• Manufacturer part number: SS-12V
• Controls a standard aviation starter contactor
• Suitable for control-stick or panel-mounted start-switch integration
• Inputs for arming and interlock functions
• One-minute starter-enable timer
• Solid-state output with flyback-diode protection
• 9-pin D-sub male connector on the controller
• Maximum rated voltage: 16 V DC
• Peak output-switch current: 10 A
• Approximate enclosure dimensions: 3.8 × 3.2 × 2.0 cm
• Approximate unit weight: 57 g

Approval status: The manufacturer documentation states that the SS-12V is not TSO approved and is intended only for aircraft in the Experimental category. No EASA approval is stated. Installation suitability remains the responsibility of the installer or aircraft builder.

Relevant documentation: TCW SmartStart SS-12V Installation Instructions.