1. Overview

2. Specifications

• Product Model: LX9FF127
• Rated Voltage: 120-127 V AC
• Frequency Range: 40-400 Hz
• Rated Current: 16.0 A (for specific series contactors)
• Resistance: 13 Ω (20°C)
• Power: 2.1 W (low loss characteristic)
• Insulation Class: Class B
• Insulation Resistance: >100 MΩ
• Service Life: Approximately 10,000,000 operations

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3. Features

• Low Loss: Compared with traditional coils, the LX9FF127 adopts a low-power design, which can effectively reduce operating costs.
• Compact Design: Complies with the compact design standards of the TeSys F series, facilitating installation in narrow spaces.
• High Reliability: Made of high-quality materials and advanced manufacturing processes, it has excellent anti-interference and anti-impact capabilities.
• Wide Frequency Range: The wide operating frequency range (40-400 Hz) adapts to the power grid conditions in different regions.

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4. Structure & Components

• Coil Body: Mainly responsible for generating electromagnetic force to drive the main contacts of the contactor to close.
• Pin Terminals: Used to connect the power supply and control circuit, usually marked with L1 (phase wire) and L2 (neutral wire).
• Insulator: Covered with high-insulation materials to ensure safe operation.
• Connection Point: The mechanical connection part with the contactor body.

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5. Application Areas

• Industrial Automation: Used in industrial motor control systems and automated production lines.
• Building Control: Applied to power supply management in Building Management Systems (BMS).
• Energy Management: Suitable for electrical protection and control in power transformation and distribution stations.
• Other Electrical Control: Such as Heating, Ventilation and Air Conditioning (HVAC) systems, pump control systems, etc.

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6. Installation & Maintenance

Installation

• Power Off Operation: Before performing any installation or maintenance work, ensure the system is powered off.
• Wiring: Connect the L1 and L2 pins to the power phase wire and neutral wire respectively, ensuring firm connection to prevent poor contact.
• Fixing: Install the coil at the designated position on the contactor body, ensuring good contact with the coil socket.
• Inspection: Check for excessive dust or debris around and keep the installation environment clean.

Maintenance

• Regular Inspection: It is recommended to check the resistance value of the coil every 3-6 months for abnormalities, and check for burning marks or discoloration.
• Cleaning: Keep the coil and its surrounding environment clean to prevent overheating caused by dust accumulation.
• Replacement: If the coil is damaged or malfunctions, replace it with the same model LX9FF127 to ensure consistent parameters.