ABB 1SDA067860R1 Molded Case Circuit Breaker

1. Product Overview

The ABB 1SDA067860R1 is a molded case circuit breaker (MCCB) belonging to the ABB Tmax / Tmax XT family. It is designed to protect low-voltage electrical systems from overloads, short circuits, and other abnormal conditions. With high breaking capacity, long service life, and flexible configurations, it is widely used in industrial and building distribution systems.

2. Technical Specifications

General

• Model: 1SDA067860R1

• Type: Molded Case Circuit Breaker (MCCB)

• Series: Tmax / Tmax XT

• Poles: 3P or 4P

• Application: AC low-voltage distribution protection

Electrical

• Rated Current (In): Typically 100A–250A (depending on the frame size)

• Rated Voltage (Ue): up to AC 690V

• Insulation Voltage (Ui): AC 800V

• Impulse Withstand Voltage (Uimp): 6kV

• Breaking Capacity (Icu): 25kA–70kA

Mechanical

• Mechanical endurance: ≥20,000 operations

• Electrical endurance: ≥10,000 operations

• Mounting: panel-mounted or rail-mounted

• Operation: manual (optional motor operator)

Protection Functions

• Overload protection

• Short-circuit protection

• Earth fault protection (optional)

• Auxiliary alarm/contact expansion

Environmental

• Operating temperature: –25°C to +70°C

• Storage temperature: –40°C to +85°C

• Protection class: IP20 (higher when panel-mounted)

• Vibration resistance: industrial grade

3. Key Features & Advantages

1. High breaking capacity suitable for demanding industrial applications.

2. Flexible protection options (thermal-magnetic or electronic trip units).

3. Long mechanical and electrical service life.

4. Modular design with rich accessory support.

5. Compact for easy installation in distribution boards.

6. Certified to international electrical standards.

4. Application Areas

• Industrial power distribution panels

• Commercial & residential building power systems

• Automation and machinery protection

• Motor and equipment protection

• Sub-distribution in LV systems

• Petrochemical, manufacturing, and utility industries

5. Precautions & Maintenance

1. Ensure compatibility of rated current and frame size before installation.

2. Tighten all terminals properly to avoid overheating.

3. Do not exceed rated breaking capacity or current.

4. Inspect thermal conditions and terminal conditions regularly.

5. Keep the breaker dry and away from corrosive environments.

6. Adjust trip settings properly for electronic trip units.

7. Periodically test auxiliary contacts and operator modules for critical systems.

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