6ES7461-3AA00-7AA0 S7-400 Terminating Connector IM 461-3

Technical Data

• Product type: Terminating connector
• Belongs to: S7-400 (IM 461-3 receiver)
• Weight: approx. 74 g
• Function: Bus termination for interference-free communication

Compatible Devices & Selection Guide

• Designed for IM 461-3 receiver interface module.
• Used with S7-400 racks (UR1, UR2, CR2, etc.).
• Critical for PROFIBUS and backplane bus termination.
• Select when replacing obsolete connectors (e.g., 6ES7461-3AA00-7AA0).
• Not compatible with IM 460 or IM 461-0/1 variants.

Oiltech Controls’s Insight

• Termination resistance must match cable impedance (typically 150 Ω).
• Missing or faulty terminator causes reflection & data errors.
• Always install at both ends of the bus segment.
• This connector is passive – no external power needed.
• Visually inspect pins before installation; bent pins are common failure.

Oiltech Controls Review

• “Reliable termination for our S7-400 hot standby system.” – Power plant engineer
• “Easy to install, solved intermittent bus faults.” – Automation lead
• “Original quality, fast delivery to Brazil.” – Maintenance manager
• “Price competitive vs. Siemens direct.” – Procurement specialist

Professional FAQ – Selection & Experience

• Q1: Is this terminator mandatory for IM 461-3?
  Yes. Without it, the bus segment will have reflections. This leads to communication timeouts and system crashes.
• Q2: Can I use this on IM 461-0 or IM 460?
  No. The pin assignment and impedance differ. Use 6ES7461-3AA00-7AA0 only with IM 461-3.
• Q3: How do I verify if my terminator is faulty?
  Measure resistance between pin 1 and 2 (data lines). Should read ~150 Ω. If open or short, replace it.
• Q4: What is the typical lifespan in harsh environments?
  Over 10 years under 0‑60 °C. Failure often due to physical damage, not electrical wear.
• Q5: Which spare parts should I keep in stock?
  Keep at least 2 terminators per rack. Also stock IM 461-3 and bus cables. This connector is often overlooked.

Shipping & Warranty

• Dispatch: 24‑28 hours after order confirmation.
• Carriers: FedEx, UPS, DHL (global tracking).
• Warranty: 12‑month against manufacturing defects.
• Tested surplus and refurbished options available (fully functional).

Why Choose Oiltech Controls?

• 15+ years in industrial automation spares.
• Global logistics – reliable air/sea freight.
• Fully tested surplus / refurbished options with warranty.
• 12‑month warranty and pre‑shipment verification.
• Expert support for obsolete control systems.

Contact Inquiries: info@oiltechcontrols.com | +86 158 8020 0923 (WhatsApp)

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