ABB ACRB-03 3HNE08250-1 Safety Relay

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1. Product Overview

The ABB ACRB-03 3HNE08250-1 is an industrial safety relay designed for safety control in industrial automation systems. It ensures rapid disconnection of power or signals in emergency situations, protecting personnel and equipment. The ACRB-03 supports multiple input signal types and can be integrated with emergency stop buttons, safety light curtains, safety doors, and other safety devices to implement control systems in compliance with international safety standards.

2. Main Technical Specifications

• Manufacturer: ABB

• Model: ACRB-03 3HNE08250-1

• Product Type: Safety Relay

• Input Types: Safety switches, emergency stop buttons, light curtains, two-hand control inputs

• Output Types: Relay outputs (NO/NC configurable)

• Rated Voltage: 24 V DC

• Rated Current: 6 A

• Response Time: ≤ 20 ms

• Contact Configuration: 2 NO + 1 NC (expandable via modules)

• Ambient Temperature Range: -25 °C to +55 °C

• Mounting: DIN rail

• Protection Class: IP20

• Certifications and Standards:

  • IEC 60947-5-1 / 5-5

  • ISO 13849-1 / PL d / SIL 2

  • EN 60204-1

3. Advantages and Features

1. High Safety and Reliability
   Redundant design with self-monitoring ensures reliable execution of critical safety functions.

2. Fast Response
   ≤20 ms response time ensures rapid power disconnection or signal switching in emergencies.

3. Strong Compatibility
   Compatible with emergency stop buttons, safety doors, light curtains, and other industrial safety devices.

4. Easy Installation and Maintenance
   DIN rail mounting and modular design allow easy expansion, replacement, and maintenance.

5. International Safety Certifications
   Complies with IEC, ISO, and EN safety standards, suitable for various industrial safety systems.

4. Typical Applications

• Emergency stop and safety control in industrial automation production lines

• Robot workstations and manipulator protection

• Safety doors, light curtains, and two-hand control systems

• Packaging, material handling, and processing equipment safety

• High-risk industrial environments in chemical, power, and machinery manufacturing

5. Installation and Operation Notes

1. Ensure the relay’s rated voltage, current, and contact types match the safety control system before installation.

2. Follow wiring diagrams carefully, ensuring correct connection of safety inputs and outputs.

3. Install in a dry, ventilated environment; avoid high temperature, dust, or corrosive gases.

4. Perform functional tests before commissioning, including emergency stop actions, safety door, and light curtain monitoring.

5. Regularly inspect relay status and wiring to ensure long-term safe and reliable operation.

The structure and details of the product：

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