STS-A12

Lamar STS-A12 CONTACTOR 12V AUX

PN: STS-A12


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DESCRIPTION | FEATURES | SPECIFICATIONS | DOCUMENTS | VIDEO | ASK A QUESTION

DESCRIPTION

The **Lamar STS-A12 Auxiliary Contactor** (P/N **STS-A12**) is a 12V continuous-duty electrical contactor designed for battery master and auxiliary power switching in applicable aircraft electrical systems. The contactor features silver electrical contacts and an all-metal case construction. Its continuous-duty design supports electrical switching applications where the contactor must remain energised during operation. The STS-A12 is listed as an FAA PMA replacement for selected original equipment contactors installed in Beechcraft, Cessna, Commander, Mooney and Piper aircraft. --- ## Applications Suitable for applicable: - **Beechcraft Aircraft** – Battery master and auxiliary electrical switching - **Cessna Aircraft** – Battery master and auxiliary power contactor applications - **Commander Aircraft** – Battery master and auxiliary electrical switching - **Mooney Aircraft** – Battery master and auxiliary contactor applications - **Piper Aircraft** – Battery master and auxiliary electrical switching - **12V Aircraft Electrical Systems** – Continuous-duty contactor applications --- ## Why CJ Aerospace? CJ Aerospace supplies aircraft electrical components, master relays, contactors 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 contactor or compatible electrical component? Contact our team for assistance.

FEATURES

- **12V Electrical System Compatibility** – Designed for applicable 12V aircraft electrical systems - **Continuous-Duty Operation** – Suitable for battery master and auxiliary switching applications - **High-Current Switching** – Silver contacts provide high-current switching capability - **Silver Contact Construction** – Features silver electrical contacts - **All-Metal Case** – Metal housing construction for aircraft electrical applications - **Dual Coil Terminals** – Provides two coil connection terminals - **FAA PMA Replacement** – Listed for selected aircraft contactor replacement applications

SPECIFICATIONS

Package Dimensions

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Details

| **Specification** | **Detail** | | --- | --- | | **Part Number** | STS-A12 | | **Product Type** | Auxiliary / Battery Master Contactor | | **System Voltage** | 12V DC | | **Duty Cycle** | Continuous Duty | | **Continuous Current Rating** | 150A | | **Inrush Current Capability** | 300A | | **Contact Material** | Silver | | **Housing Construction** | All-Metal Case | | **Coil Terminals** | Dual | | **Application** | Battery Master / Auxiliary Power Switching | | **OEM Part Numbers** | 6041H187, 6041H105, 70-111224-5, 0411021-1, 0712603-1, 0712603-2, S1579-1, S1579-2, S1660-1, 71-311222, 71-311222-5, 62551, RBM Controls 7111224, 48296-9, 71-111221-5, RBM-2295-7, 1114213, 6041H105A, 24059, 484 373 | | **Compatible Beechcraft Aircraft Models/Series** | 35, A35, B35, C35, D35, E35, F35, G35, 35-33, 35-A33, 35-B33, 35-C33, 35-C33A, E33, E33A, F33, F33A, F33C, G33, H35, J35, K35, M35, N35, P35, S35, V35, V35A, V35B | | | | | **Compatible Cessna Aircraft Models/Series** | 150, 150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L, 150M, A150K, A150L, A150M, F150F, F150G, F150H, F150J, F150K, F150L, F150M, FA150K, FA150L, FA150M, 170A, 170B, 172, 172A, 172B, 172C, 172D, 172E, 172F, 172G, 172H, 172I, 172K, 172L, 172M, 172N, 172P, 172Q, R172K, F172D, F172E, F172F, F172G, F172H, F172K, F172L, F172M, F172N, 175, 175A, 175B, 175C, 177, 177A, 177B, 177RG, F177RG, 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K, 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, F182P, F182Q, 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F, 188, A188, 188A, A188A, 188B, A188B, 190, 195, 205 (210-5), 205A (210-5A), 206, U206, P206, U206A, P206A, U206B, P206B, U206C, P206C, U206D, P206D, U206E, P206E, U206F, TU206A, TP206A, TU206B, TP206B, TU206C, TP206C, TU206D, TP206D, TU206E, TP206E, TU206F, 207, T207, 210, 210A, 210B, 210C, 210D, 210E, 210F, 210G, T210G, 210H, T210H, 210J, T210J, 210K, T210K | | | | | **Compatible Commander Aircraft Models/Series** | 112, 112B, 112TC, 112TCA, 114, 114A | | | | | **Compatible Maule Aircraft Models/Series** | M-4-180S, M-4-180C, M-4-180V, M-4-210, M-4-220, M-4-220C, M-5-180C, M-5-200, M-5-210C, M-5-210TC, M-5-220C, M-5-235C, M-6-180, M-6-235, M-7-235, M-7-235A, M-7-235B, M-7-235C, M-7-260, M-7-260C, MX-7-160, MX-7-160C, MX-7-180, MX-7-180A, MX-7-180B, MX-7-180C, MX-7-180AC, MX-7-235, MT-7-235, MT-7-260, MXT-7-160, MXT-7-180, MXT-7-180A | | | | | **Compatible Mooney Aircraft Models/Series** | M20J, M20K | | | | | **Compatible Piper Aircraft Models/Series** | PA-24, PA-24-250, PA-24-260, PA-28-140, PA-28-150, PA-28-160, PA-28-180, PA-28-235, PA-28S-160, PA-28S-180, PA-28R-180, PA-28R-200, PA-28-151, PA-28R-201, PA-28R-201T, PA-28RT-201, PA-28RT-201T, PA-32-301, PA-32-301T, PA-32R-301, PA-32R-301T, PA-32RT-300, PA-34-200, PA-34-200T, PA-38-112, PA-44-180, PA-44-180T | | **FAA PMA** | Yes | | **Brand** | Lamar | | **Manufacturer** | Lamar Technologies LLC |

BROCHURES & DOCUMENTATIONS

List of Brochures

List of Documentation

LAMAR TECHNOLOGIES SOLENOID INSTALLATION INSTRUCTIONS
LAMAR TECHNOLOGIES PMA SUPPLEMENT 11 - SOLENOIDS
LAMAR TECHNOLOGIES STARTER OVERVIEW

VIDEO

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