STS-A12 CONTACTOR 12V AUX

The **STS‑A12 Contactor** is a **continuous‑duty 12 V auxiliary contactor/solenoid** designed for **auxiliary and battery‑master switching** in 12 V aircraft electrical systems. It features **rugged all-metal construction and silver contact elements** for reliable high-current operation in demanding environments. This unit is **FAA‑PMA approved** as a replacement for legacy auxiliary or battery master contactors and is suitable for **ground support, avionics, and auxiliary circuit applications**. --- ## Applications - Control of **12 V auxiliary and battery master circuits** in aircraft - Auxiliary electrical switching for **ground support or avionics power** - Replacement contactor for **certified aircraft electrical systems** - OEM installation and maintenance replacements --- ## Why CJ Aerospace? CJ Aerospace supplies trusted aviation electrical components. We offer fast local delivery, expert technical support, and industry‑proven products that keep operations moving. - 🇦🇺 **Australian‑owned & operated** - 📦 **Stocked locally in Australia for fast dispatch** - 🔍 **Specialist knowledge of aircraft electrical systems** - 🧰 **Used by leading MROs & maintenance professionals** > ✉️ [Contact us sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need installation guidance or technical documentation? Contact CJ Aerospace for expert support.

- **Silver contacts** provide 300 A in‑rush & 150 A continuous‑duty capability - **Light spring and low-current coil** for excellent engagement and holding - **Dual coil terminals** for easy wiring - **All-metal case construction** for durability - **OE terminal layout** for simple installation - **Upgraded to perform with modern lightweight, high-torque starters** - **FAA‑PMA approved** for certified aircraft - **Continuous-duty auxiliary solenoid**