ABB 68711894 Safety Relay

Product Overview

The ABB 68711894 is an industrial safety relay designed for monitoring and controlling emergency stop (E-Stop), safety doors, light curtains, and other safety functions in industrial automation systems. The relay ensures reliable disconnection in hazardous conditions, protecting equipment and personnel, and complies with international safety standards.

Technical Specifications

• Model: 68711894

• Type: Safety Relay

• Control Circuits: E-Stop, safety doors, light curtains, etc.

• Input Type: 24 V DC safety input

• Output Type: Relay contacts, typically 2 NO + 1 NC

• Output Rating: 3 A / 250 V AC (typical)

• Response Time: < 20 ms

• Mounting: DIN rail (IEC/EN 60715)

• Operating Temperature: –25 °C … +60 °C

• Protection Rating: IP20

• Indicators: LEDs for power and output status

• Certifications: EN ISO 13849-1, IEC 61508, UL/CSA

• Dimensions (W×H×D): 22.5 × 90 × 114 mm

• Weight: approx. 0.15 kg

Advantages and Features

1. Fast and Reliable Safety Response
   Quickly responds to E-Stop, safety door, and light curtain signals.

2. Modular and Compact Design
   DIN rail mounting, space-saving, easy to integrate in control panels.

3. LED Status Indicators
   Clear display of power and output states for maintenance and diagnostics.

4. Versatile Applications
   Suitable for E-Stop, two-hand control, safety door monitoring, light curtain protection, and more.

5. Compliance with International Safety Standards
   Suitable for industrial automation safety systems; meets SIL2 / PL d requirements.

Typical Applications

• Industrial automation production lines

• Packaging and food processing equipment

• Robotic workstations safety monitoring

• CNC machines and machining centers

• Material handling and conveyor systems

• Elevators and automated control systems safety circuits

Precautions

1. Verify input signal type and rated voltage before installation.

2. Follow wiring instructions strictly to ensure proper safety functionality.

3. Avoid strong vibration, high temperature, high humidity, and corrosive environments.

4. Regularly check relay operation and LED indicators to ensure proper safety function.

5. Do not disassemble or modify internal wiring to maintain safety certification.

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The structure and details of the product：

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