Yokogawa | SEC401-51 ESB Bus Coupler Module

Yokogawa SEC401-51 ESB Bus Coupler Module

Core Product Specifications

• Manufacturer & Model: This is a genuine Yokogawa part, model SEC401-51.
• Product Type: It is an ESB Bus Coupler Module for system expansion.
• Environmental Rating: Built as a standard type with no explosion protection.
• Compliance (Suffix '1'): Conforms to ISA Standard G3 for industrial use.
• System Capacity: Can connect a maximum of 9 safety node units.
• Weight: The module is lightweight, approximately 0.24 kg.

Communication & Electrical Details

• Transmission Speed: Provides fast 128 Mbps data transmission for I/O modules.
• Transmission Distance: Supports a maximum bus length of 10 meters.
• Current Consumption: Has a low current draw of only 0.5 Amperes.
• Primary Function: Enables communication between the safety controller and remote I/O nodes.

Application & Integration

• Typical Use: Links a safety control unit (like S2SC70, SSC60 series) to SNB10D safety node units.
• System Role: Central hub for extending I/O points in a safety instrumented system.
• Key Limitation: The SEC401-51 supports up to 9 nodes, unlike the SEC402 which supports 13.
• Installation Note: Must be installed within the specified distance limits for reliable communication.

Frequently Asked Questions (FAQ)

• How many safety nodes can the SEC401-51 connect?
  The SEC401-51 can connect a maximum of 9 safety node units.
• What is the data transmission speed?
  It supports a high-speed 128 Mbps transmission rate.
• What does "ISA Standard G3" mean?
  It indicates suitability for general industrial environments (non-hazardous locations).
• What is the difference between SEC401 and SEC402?
  The key difference is capacity: SEC401 connects up to 9 nodes, SEC402 connects up to 13 nodes.
• What is your return policy?
  We offer a 30-day return policy for customer satisfaction.
• What is the maximum cable length supported?
  The maximum transmission distance for the ESB bus is 10 meters.

For system design support or to order the Yokogawa SEC401-51 coupler, please contact us.

Contact Information Inquiries: sales@nex-auto.com or call us at +86 153 9242 9628.