Model:Â SW80-1686L
Manufacturer Part Number:Â 51370047
Brand:Â Jungheinrich (Genuine/OEM Part)
Product Type:Â Electromagnetic Contactor
Coil Voltage:Â 24V DC
Primary Application:Â Jungheinrich Forklifts and Material Handling Equipment
Overview
The CONTACTOR SW80-1686L is a genuine OEM component manufactured for Jungheinrich electric forklifts, pallet trucks, and other material handling equipment. This heavy-duty electromagnetic contactor functions as a remotely operated switch, designed to handle the high-current loads required for critical functions such as the travel motor, hoist motor, or power circuit control. Part number 51370047 is the specific identifier used by Jungheinrich for this component.
Key Features & Specifications
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Manufacturer / OEM:Â Jungheinrich
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OEM Part Number:Â 51370047
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Product Code / Model:Â SW80-1686L
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Operational Voltage (Coil):Â 24V DC. This low control voltage is standard in the electrical systems of industrial vehicles.
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Compliance & Standards:
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GB14048.4:Â Chinese national standard for “Low-voltage switchgear and controlgear – Part 4: Contactors and motor-starters.” This certifies its performance and safety for the Chinese market.
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IEC 60947-4-1:Â International Electrotechnical Commission standard for “Low-voltage switchgear and controlgear – Part 4-1: Contactors and motor-starters – Electromechanical contactors and motor-starters.” This is the global benchmark for quality and safety, ensuring reliable operation in industrial environments.
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Design:Â Typically features a robust plastic housing containing main power contacts (usually single-pole or multi-pole, depending on application), an electromagnetic coil, and an arc suppression system to extinguish sparks when switching.
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Function:Â Acts as a high-power relay, allowing a low-current signal from the forklift’s controller to safely turn on and off a high-current circuit for motors or other heavy loads.
Application & Use Cases
This contactor is a critical component found in the electrical control panel of Jungheinrich forklifts. Its primary function is to:
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Control the high current flow to the traction (drive) motor.
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Control the high current flow to the hydraulic pump motor (for lifting/lowering).
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Serve as a main system contactor for the forklift’s high-voltage circuit (e.g., 48V, 80V battery system).















