ABB CAL4-11 1SBN010120R1011 Auxiliary Contact Block

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1. Product Overview

The ABB CAL4-11 is a high-performance auxiliary contact block designed for ABB contactors and circuit breakers. It provides additional normally open (NO) and normally closed (NC) contacts to enable status monitoring, interlocking, and remote signaling of the main circuit. The CAL4-11 module features compact design, high reliability, and easy mounting with ABB contactors or circuit breakers, widely used in industrial automation and low-voltage distribution systems.

2. Technical Specifications

Electrical Specifications

• Model: CAL4-11

• Contact Type: 1 NO + 1 NC

• Rated Current (Ie): 6 A (AC-15), 3 A (DC-13)

• Rated Voltage (Ue): 400 V AC / 220 V DC

• Rated Frequency: 50/60 Hz

• Insulation Voltage: 2.5 kV

• Mechanical Life: ≥ 10,000 operations

• Electrical Life: ≥ 100,000 operations (AC-15 load)

Environmental & Installation

• Operating Temperature: –25°C … +55°C

• Protection Degree: IP20

• Mounting: Directly on ABB contactor or circuit breaker

• Dimensions (WxHxD): Approx. 18 mm × 70 mm × 50 mm

• Weight: Approx. 0.05 kg

3. Advantages & Key Features

1. Reliable status feedback — Monitors main circuit for timely control system response.

2. Compact design — Saves installation space and mounts directly on contactor or circuit breaker.

3. High durability — Long mechanical and electrical life suitable for industrial applications.

4. Flexible combination — Compatible with various ABB contactors and circuit breakers.

5. Easy maintenance — Modular design allows simple removal and replacement.

6. Wide applicability — Supports both AC and DC control signals for various industrial control systems.

4. Application Areas

• Industrial automation control systems

• Motor control and protection systems

• Low-voltage distribution systems

• Electrical control panels and PLC signal expansion

• Automated production line equipment

• HVAC systems and building automation

5. Precautions

1. Verify compatibility with the main contactor or circuit breaker before installation.

2. Install in a dry, well-ventilated environment, avoiding dust and moisture.

3. Follow wiring diagrams and standards to ensure reliable contact operation.

4. Only use within rated voltage and current, avoid overload or short-circuit.

5. Periodically check contact condition and mechanical operation for long-term reliability.

6. Disconnect power before installation or maintenance for safety.

The structure and details of the product：

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