SNB10D-425

Overview

The Yokogawa SNB10D-425 is a rack‑mountable safety node unit designed for integration into safety control systems. It provides redundant power supply options and supports multiple node connections via ESB bus coupler modules, ensuring reliable operation in safety‑critical environments.

Identification

• Manufacturer: Yokogawa

• Model / Type Designation: SNB10D-425

• Catalog Description: Safety node unit (rack mountable type)

Technical Characteristics

• Function: Safety node unit for distributed safety systems

• Number of Connectable Safety Node Units:

  • Up to 13 units when connected via SEC402 ESB bus coupler module to S2SC70S / S2SC70D / SSC60S / SSC60D safety control units

  • Up to 9 units when connected via SEC401 ESB bus coupler module

• Power Supply Options (Suffix Codes):

  • –4: Dual‑redundant power supply (R4.01 or later)

  • 2: 220 to 240 V AC power supply

  • 5: ISA Standard G3, operating temperature –20 to 70 °C, no explosion protection

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