ABB 1SDA067121R1 Molded Case Circuit Breaker

We will arrange delivery within 3-5 days after receiving the payment.

Our express delivery: DHL and FedEx.

Quality packing for each product

Destination country all taxes & duty to be paid by buyer

Only part of the brand and model, if you have other product needs, please contact us.

1. Product Overview

The ABB 1SDA067121R1 is a molded case circuit breaker (MCCB) designed for low-voltage distribution systems. It provides protection against overload, short circuit, and undervoltage conditions. The breaker automatically disconnects the circuit under fault conditions, ensuring equipment and personnel safety. With high interrupting capacity, sensitive overload protection, and easy operation, it is suitable for industrial, commercial, and infrastructure power distribution applications.

2. Technical Specifications

• Model: 1SDA067121R1

• Product Type: Molded Case Circuit Breaker (MCCB)

• Number of Poles: 3

• Rated Current: 20 A

• Rated Operational Voltage: AC 690 V

• Short-Circuit Breaking Capacity: 10 kA (at 400 V AC)

• Overload Protection: Thermal-magnetic adjustable

• Auxiliary Contacts: Optional

• Operation Method: Manual handle / Optional electric operation

• Mechanical Life: Approx. 10,000 operations

• Mounting: Panel or DIN rail mounting

• Protection Class: IP20 (front panel)

• Operating Temperature: -25 ℃ to +55 ℃

• Standards Compliance: IEC 60947-2, GB/T 14048.2

3. Key Advantages & Features

• High Reliability & Safety – Provides comprehensive protection against short circuit, overload, and undervoltage.

• Flexible Configuration – Optional auxiliary contacts and motorized operation for remote control and signaling.

• Long Mechanical & Electrical Life – Durable and suitable for frequent operation in industrial environments.

• Easy Operation – Manual handle is intuitive, with clear indication for quick power disconnection.

• Compact Design – Space-saving for control panels, easy installation and maintenance.

• Standards Compliant – Meets IEC 60947-2 international standards for global applications.

4. Typical Applications

• Industrial low-voltage distribution systems

• Commercial building power distribution and main switches

• Motor and power load protection

• UPS and switchgear protection

• Automation production line electrical control

• Power infrastructure and distribution equipment

5. Installation & Usage Notes

• Match Rated Current and Load – Ensure the MCCB rating fits the load to prevent overload or nuisance trips.

• Proper Installation & Wiring – Follow electrical standards, tighten connections, avoid loose connections and arcing.

• Periodic Maintenance – Inspect contacts, handles, and auxiliary contacts to ensure reliable operation.

• Avoid Harsh Environments – Minimize exposure to high humidity, high temperature, or corrosive environments; use protective measures if necessary.

• Load Interruption Consideration – MCCB can safely interrupt rated load; for large transient currents, additional protection may be required.