SNB10D-425/CU2N Overview

The Safety Node Unit Yokogawa SNB10D-425/CU2N  is a safety node unit with dual-redundant 220-240V AC power supply, providing interface and power for FIO modules to connect with safety control units via the ESB bus.

Enviromental Strength

ISA Standard: Compliant with ISA Standard G3, suitable for severe industrial environments.

Temperature Range: Operates from -20°C to +70°C.

Rack Mounting: Designed for secure 19-inch rack mounting with M5 screws.

Material Requirement: Must be installed in a keyed metallic cabinet for safety and EMC compliance.

Power Option: Specific configuration (-425) denotes no explosion protection for general use.

Dual Redundancy: Features a dual-redundant 220-240V AC power supply for reliability.

FAQ

Q1: What is the primary function of the SNB10D-425/CU2N?

A1: It is a safety node unit that interfaces field signals with a safety control unit via the ESB bus and supplies power to I/O modules.

Q2: What type of power supply does it feature?

A2: It has a dual-redundant 220 to 240 V AC power supply for high reliability.

Q3: What does the suffix "-425" indicate?

A3: It indicates an ISA G3 compliant unit for severe environments (-20 to +70°C) without explosion protection.

Q4: What is included with the /CU2N option code?

A4: It includes a Connector Unit for the ESB Bus (part number S9342FA).

Q5: What is a key installation requirement?

A5: It must be installed in a keyed metallic cabinet to meet safety and EMC standards.