Lamar X61-0031 CONTACTOR, INTERMITTANT, 24V N/O

The **Lamar X61-0031 Starter Contactor** (P/N **X61-0031**) is a 24V intermittent-duty electrical solenoid designed for high-current switching in applicable aircraft engine starting systems. Featuring a normally open (N/O) contact configuration, the X61-0031 controls electrical power delivery to the starter motor when the aircraft starting circuit is activated. Its intermittent-duty design supports the high electrical loads required during engine starting while limiting operation to short periods. The contactor features silver alloy stationary contacts and copper alloy movable contacts, with a maximum inrush current rating of 900A DC and maximum breaking current of 250A DC. It is designed for compatible general aviation electrical systems and can accommodate selected single-terminal and double-terminal switching arrangements. --- ## Applications Suitable for applicable: - **Aircraft Engine Starting Systems** – High-current electrical switching between the aircraft power supply and starter motor - **24V Aircraft Electrical Systems** – Intermittent-duty switching in compatible 24V circuits - **General Aviation Aircraft** – Selected current-production and legacy aircraft electrical installations - **Aircraft Electrical Maintenance** – Replacement of compatible intermittent-duty starter contactors - **Starter Circuit Troubleshooting** – Inspection and servicing of aircraft starter relay systems **Note:** Aircraft compatibility and installation approval must be verified for the specific aircraft. --- ## Why CJ Aerospace? CJ Aerospace supplies aircraft electrical components, starter contactors, master relays and replacement electrical system parts for a range of aviation applications. Our team can assist with product information, availability and part-number identification. - 🇦🇺 **Australian-owned and operated** - 📦 **Aircraft electrical components and replacement parts** - 🔧 **Technical assistance with part identification and compatibility** - ✈️ **Support for aircraft owners, operators and aviation professionals** > ✉️ [Contact us at sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need help identifying the correct aircraft starter contactor? Contact our team for assistance.

- **24V Electrical System Compatibility** – Designed for applicable 24V DC aircraft electrical systems - **Intermittent-Duty Operation** – Heavy-duty intermittent operation with a 25% duty cycle - **High-Current Switching** – Rated for maximum 900A DC inrush current and 250A DC breaking current - **Normally Open Contacts** – N/O configuration for controlled starter circuit engagement - **Contact Materials** – Silver alloy stationary contacts and copper alloy movable contacts - **Electrical Service Life** – Rated for 50,000 electrical cycles at the specified load - **Maximum Energised Time** – 5-minute maximum on-time - **Flexible Switching Applications** – Described as a replacement option for selected single-terminal and double-terminal switched contactors - **Functional Testing** – Units undergo quality inspections and performance testing