6ES7461-3AA00-7AA0 Siemens Terminating Connector | S7-400 Accessory

Product Overview

• Siemens 6ES7461-3AA00-7AA0 is a terminating connector for the SIMATIC S7-400 system.
  • This connector works with the IM 461-3 receiver interface module.
  • It terminates the remote I/O bus line properly.
  • Essential for reliable communication in distributed configurations.
  • Lightweight at only 74 grams.

Technical Specifications – Hierarchical View

• Basic Information
  • Brand: Siemens
  • Model: 6ES7461-3AA00-7AA0
  • Product Type: Terminating connector
  • Series: SIMATIC S7-400
• Compatibility
  • Belongs to product: S7-400 family
  • Designed for: IM 461-3 receiver module
  • Used in: Distributed I/O configurations
• Physical Data
  • Weight: 74 g (approx.)
  • Compact and easy to install

Expert Review & Manager’s Insight

• Field Engineer Review:
  • This small part is critical for bus termination on remote racks.
  • Without it, the IM 461-3 receiver will not function correctly.
  • Always keep spare terminating connectors in your toolkit.
  • Installation takes only seconds – plug it in and you are done.
• Product Manager’s Insight:
  • Many engineers overlook this part during system planning.
  • It is mandatory for proper S7-400 remote I/O operation.
  • Order one for each IM 461-3 receiver in your system.
  • This accessory prevents costly communication errors.

Suitable Devices & Application Scenarios

• Compatible with:
  • Siemens S7-400 PLC systems with remote I/O
  • IM 461-3 receiver interface modules
  • Distributed I/O configurations using IM 460-3 senders
• Applications:
  • Terminating the bus line on remote S7-400 racks
  • Ensuring proper signal reflection control
  • Maintaining stable communication in large systems
  • Replacement part for existing installations

Installation Guide

• Installation Steps:
  • Locate the termination socket on the IM 461-3 receiver.
  • Insert the 6ES7461-3AA00-7AA0 connector firmly.
  • Ensure it clicks into place securely.
  • No tools required for installation.
• Important Notes:
  • This connector must be installed on the last IM 461-3 receiver.
  • Do not install it on intermediate receivers.
  • Check your system layout before installation.

Maintenance & Debugging Tips

• Check the connector if communication errors occur on remote racks.
• A loose or missing terminator causes bus reflections.
• Inspect the connector pins for damage or corrosion.
• Keep spare units for quick replacement during maintenance.

Package Contents

• 1x Siemens 6ES7461-3AA00-7AA0 terminating connector

Comparison with Related Models

• 6ES7461-3AA00-0AA0 – Terminating connector (different revision)
• 6ES7460-3AA00-0AA0 – IM 460-3 sender module

Frequently Asked Questions (FAQ)

• Q: Is this connector required for every IM 461-3 receiver?
  • A: Only the last receiver on the bus line needs this terminator.
• Q: What happens if I do not install this terminator?
  • A: The bus signals will reflect and cause communication errors or failure.
• Q: Can I use this connector with IM 461-0 or IM 461-1 receivers?
  • A: No, this connector is specifically for the IM 461-3 receiver only.
• Q: How do I know which receiver is the last on the bus?
  • A: The receiver furthest from the sender module is the last one.
• Q: Does this connector support hot-swapping?
  • A: You can install or remove it only when the system is powered off.

Buying Guide & Selection Advice

• Order one terminator for each remote S7-400 rack with IM 461-3.
• Keep spare units in stock for emergency replacements.
• This part is often forgotten but is essential for system operation.
• We offer 12-month warranty on all products.
• Shipping: FedEx, UPS, or DHL available.
• Orders dispatch within 12-24 hours of confirmation.

Contact & Support

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825

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