Yokogawa SB401-50 ESB Bus Slave Module - I/O Capacity

Yokogawa SB401-50 ESB Bus Interface Slave Module

Expand your control system’s I/O capacity with this reliable interface module. The SB401-50 acts as a slave node on the ESB bus, enabling flexible field device connections. Perfect for extending Yokogawa FCU systems.

Why You Need This Module

• System Expansion - Add up to 8 I/O modules to your network
• Flexible Power Options - Works with AC or DC power supply
• Proven Compatibility - Designed for Yokogawa FCU and FIO systems
• Rugged Design - Built for standard industrial environments
• Simple Integration - Easily connects via ESB Bus Coupler

Technical Specifications

• Brand: Yokogawa
• Model: SB401-50
• Type: ESB Bus Interface Slave Module
• Configuration: Basic type, Standard (no explosion protection)
• Compatible Controllers: A2FV50, A2FV70, AFV30, AFV40 series
• Max I/O Modules: 8 modules per unit
• Power Option 1: 100-120V AC, 50/60 Hz, 200 VA
• Power Option 2: 220-240V AC, 50/60 Hz, 230 VA
• Power Option 3: 24 V DC, 5.5 A
• Power Consumption: 120 W
• Approx. Weight: 0.5 kg (with 8 I/O modules)
• Required Coupler: EC401 or EC402 module
• Installation Slot: Slot 7 or 8 in FCU

Frequently Asked Questions

What is the main purpose of this SB401 module?

It allows you to connect additional input/output modules to your Yokogawa control system as a slave unit.

How many I/O modules can I add with one SB401-50 unit?

You can expand your system with up to 8 additional I/O modules using this single interface.

What other component do I need to connect this to my FCU?

You need an ESB Bus Coupler Module (EC401 or EC402) installed in the FCU's slot 7 or 8.

Can I use this module with different power sources?

Yes, it supports 100-120V AC, 220-240V AC, or 24V DC power inputs for installation flexibility.

Is this module suitable for hazardous locations?

No, this is a standard type module without explosion protection for use in general industrial areas.

Shipping & Warranty

• Quick delivery worldwide via FedEx, UPS, or DHL
• Full 12-month warranty for peace of mind
• New and original in sealed factory packaging