ABB 1SDA051368R1 Auxiliary Contact Block

1. Product Overview

The ABB 1SDA051368R1 Auxiliary Contact Block is an add-on unit used with circuit breakers, contactors, and protection devices to provide status indication, interlocking, and control signals. It features highly reliable mechanical-electrical contacts and delivers NO/NC output for various control and monitoring requirements. It is widely used in low-voltage switchgear and industrial automation systems.

2. Technical Specifications

General

• Model: 1SDA051368R1

• Type: Auxiliary contact block

• Manufacturer: ABB

• Compatible Devices: ABB low-voltage circuit breakers

Electrical

• Contact Type: NO / NC

• Rated Voltage:

  • AC: 230V / 400V

  • DC: 24V / 48V

• Rated Current:

  • AC-15: 3–5A

  • DC-13: 1–2A

• Mechanical Life: > 10,000,000 operations

• Electrical Life: > 100,000 operations

Performance & Structure

• Mounting: Side-mounted / plug-in installation

• Wiring: Screw-terminal connection

• Contact Response: Fast and stable

• Insulation Voltage: > 2.5kV

• Protection Class: IP20

Environmental

• Operating Temp.: –25°C to +70°C

• Storage Temp.: –40°C to +85°C

• Humidity: 5%–95% non-condensing

• Vibration Resistance: Industrial-grade

3. Features & Advantages

1. High reliability and long service life.

2. Compatible with multiple ABB breaker series.

3. Precise switching and stable signal output.

4. Safe electrical isolation between main and control circuits.

5. Low maintenance requirements.

6. Excellent durability in industrial environments.

4. Application Areas

• Circuit breaker status indication

• Contactor auxiliary signaling

• Industrial automation control

• Power distribution cabinets

• Power generation & substation systems

• Machine interlock protection

• Building and factory control systems

• Alarm and remote monitoring circuits

5. Precautions & Maintenance

1. Always disconnect power before installation.

2. Ensure correct compatibility with the breaker model.

3. Tighten terminal screws firmly.

4. Avoid exposure to moisture or corrosive environments.

5. Keep the module clean and free of dust.

6. Do not exceed rated voltage/current.

7. Prevent strong vibration or physical shock.

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