ABB 1SDA067020R1 Molded Case Circuit Breaker

• Product Overview

  The ABB 1SDA067020R1 is a low-voltage molded case circuit breaker (MCCB) designed to provide reliable overload and short-circuit protection in electrical power systems. With a compact structure, long electrical and mechanical life, and comprehensive protection functionality, this breaker can serve as a main switch or branch circuit protector in industrial, commercial, and residential distribution systems.

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  Main Technical Specifications

  • Model: 1SDA067020R1

  • Product Type: Molded Case Circuit Breaker (MCCB)

  • Rated Current: 20 A

  • Poles: 3P (Three poles)

  • Rated Insulation Voltage: AC 800 V

  • Rated Operational Voltage: AC 400 V / 690 V

  • Breaking Capacity: 10 kA (typical, may vary by version)

  • Trip Type: Thermal-magnetic (thermal overload + magnetic short-circuit)

  • Frequency: 50/60 Hz

  • Mounting: Panel or DIN rail mounting

  • Operating Temperature: -25 ℃ to +70 ℃

  • Mechanical Life: ≥ 10,000 operations

  • Electrical Life: ≥ 4,000 operations

  • Protection Class: IP20

  • Standards: IEC/EN 60947-2, CE, UL

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  Key Advantages & Features

  1. Reliable Overload & Short-Circuit Protection
     Thermal-magnetic trip units combine thermal overload and magnetic short-circuit protection for dependable fault interruption.

  2. High Breaking Capacity
     Capable of interrupting high fault currents to protect circuits and connected equipment.

  3. Wide Electrical Compatibility
     Suitable for AC 400 V / 690 V low-voltage distribution applications.

  4. Compact & Durable Design
     Molded case is impact-resistant and vibration-resistant, ideal for industrial environments.

  5. Easy Installation
     Supports panel and DIN rail mounting for flexible distribution board layouts.

  6. Clear Status Indication
     Handle shows positions (ON/OFF/TRIP) clearly for easy field indication.

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  Typical Applications

  • Industrial and manufacturing plant distribution

  • Commercial building power distribution and branch protection

  • Residential main and branch circuits

  • Motor and equipment control panel protection

  • Electrical rooms and utility distribution centers

  • HVAC systems and pump station protection

  • Automated production line power protection

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  Installation & Operation Notes

  • Match Ratings: Verify load current and voltage ratings match the breaker’s ratings.

  • Proper Short-Circuit Protection: Use appropriate fuses or select higher breaking capacity versions in high fault current regions.

  • Correct Wiring: Follow wiring diagrams carefully; ensure tight and secure terminal connections.

  • No Live Disassembly: Do not dismantle or adjust the breaker while energized.

  • Environmental Conditions: Avoid high humidity, corrosive gases, or strong vibration areas.

  • Routine Inspection: Periodically check breaker condition, terminal tightness, and enclosure cleanliness.

  • Optional Upgrades: Add accessories like undervoltage releases or remote operating units when needed.

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The structure and details of the product：

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