ABB RT7 A 2TLA010028R2000 Safety Relay

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• 1. Product Overview

  The ABB RT7 A 2TLA010028R2000 is a high-performance safety relay designed for monitoring and controlling safety circuits in industrial automation systems, including emergency stops, light curtains, area supervision, safety interlocks, and other safety inputs. It supports single or dual channel inputs, multiple safety outputs, and delayed outputs, meeting ISO 13849-1 Cat. 4 safety requirements, making it an essential component for machine and hazardous area safety control.

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  2. Technical Specifications

  Parameter	Description
  Model	RT7 A 2TLA010028R2000
  Type	Safety Relay
  Series	RT7A
  Supply Voltage	24 V DC
  Inputs	Single or dual channel safety inputs
  Output Contacts	2NO/2NO/1NC (safety + auxiliary outputs)
  Delayed Outputs	1.5 s delay for safe stop
  Safety Category	ISO 13849-1 Category 4
  Mounting	DIN rail
  Terminal Type	Screw clamp quick release
  Indicators	LEDs for power, input, and output status
  Protection	IP20
  Dimensions	84 × 45 × 120 mm
  Power Consumption	~4.6 W
  Certifications	CE / TÜV / CSA

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  3. Key Advantages & Features

  1. High Safety Level

     • Complies with ISO 13849-1 Cat. 4, suitable for high-risk safety circuits.

  2. Flexible Input Channels

     • Can be configured for single or dual channel safety monitoring.

  3. Versatile Outputs

     • Combines safety and auxiliary outputs; delayed output enables smooth stop for enhanced equipment protection.

  4. Intuitive Status Display

     • LEDs indicate power, input, and output status for easy commissioning and maintenance.

  5. Robust and Easy to Install

     • DIN rail mounting with quick release terminals, suitable for industrial environments.

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  4. Typical Applications

  • Emergency stop and safety protection in industrial production lines

  • Machine safety door monitoring

  • Safety light curtain, light beam, and foot switch monitoring

  • Hazardous area access and control systems

  • Robotics, material handling systems, and integrated safety systems

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  5. Usage Precautions

  • Power Supply: Ensure stable 24 V DC supply for reliable safety logic operation.

  • Installation: Must be installed by qualified personnel according to IEC/ISO safety standards.

  • Safety Input Configuration: Verify proper wiring and redundancy of safety inputs like E-stops, light curtains, and interlocks.

  • Maintenance Safety: Disconnect power before inspection or replacement to ensure safety.

  • Regular Inspection: Check LEDs to confirm proper input/output and reset functionality.

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The structure and details of the product：

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