ABB 1SDA038323R1 Motor operator gearbox

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• 1. Product Overview

  The ABB 1SDA038323R1 Motor Operator Gearbox is a key mechanical transmission component used in ABB low-voltage circuit breaker motor operator assemblies. It transfers and converts the motor output into the mechanical force required for reliable closing and opening operations of the circuit breaker, enabling remote, electric, and automatic control. The gearbox features a robust design and stable transmission, ensuring long-term reliable operation of the motor operator.

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  2. Main Technical Parameters (Typical)

  Product Type

  • Gearbox for motor-operated mechanisms

  • Circuit breaker accessory / mechanical transmission component

  Compatible Equipment

  • ABB low-voltage circuit breakers (e.g. TMAX, Emax series, configuration dependent)

  • ABB motor operator assemblies

  Mechanical Characteristics

  • High-strength metal gear construction

  • Precision gear transmission with low backlash

  • Suitable for frequent operating cycles

  Drive and Output

  • Direct coupling with motor operator

  • Output torque suitable for breaker closing and opening operations

  • Smooth transmission with reduced mechanical shock

  Mounting

  • Original ABB standard mounting interface

  • Direct installation on circuit breakers or motor operator assemblies

  Operating Conditions

  • Industrial-grade operating temperature range

  • Designed for continuous-duty operation

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  3. Advantages and Features

  • Specifically designed for ABB circuit breakers ensuring perfect compatibility

  • Reliable mechanical transmission for accurate and stable operations

  • Robust and durable construction for long service life

  • Low maintenance requirement reducing downtime

  • Supports automation and remote control of circuit breakers

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  4. Typical Applications

  • Industrial low-voltage power distribution systems

  • Automated switchboards and control panels

  • Power plants and distribution substations

  • Infrastructure and commercial building power systems

  • Circuit breaker systems requiring remote operation

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  5. Application Notes

  • Verify compatibility between the gearbox, circuit breaker, and motor operator before installation

  • Disconnect all power sources during installation or maintenance

  • Avoid forced operation or exceeding the designed operating frequency

  • Periodically inspect mechanical fasteners and connections

  • Stop operation and inspect immediately if abnormal noise or jamming occurs

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The structure and details of the product：

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