Yokogawa AKB331-M002 | Reliable Terminal Block for Automation

Product Overview

The Yokogawa AKB331-M002 is a Terminal Block / I/O Base Unit used in Yokogawa’s CENTUM VP distributed control system (DCS) and ProSafe-RS safety instrumented system (SIS). It connects field wiring to I/O modules, ensuring reliable and secure signal transmission in both analog and digital formats. The compact, rack-mounted design and screw-type terminals make installation and maintenance straightforward, while the shielded wiring minimizes noise interference in industrial environments.

Technical Specifications

• Model: AKB331-M002

• Product Type: Terminal Block / I/O Base Unit

• System Compatibility: Yokogawa CENTUM VP, CENTUM CS 3000, ProSafe-RS

• Connections: 40-pin terminal block (typical for AKB series)

• Supported Signals: Analog input/output, digital input/output (depending on paired I/O module)

• Wiring Method: Screw-type terminals

• Wire Size: 0.5–2.5 mm² (AWG 20–14)

• Isolation: Provided via paired I/O module

• Mounting: Rack-mounted in I/O base units

• Dimensions:  130 × 107.5 × 32.8 mm

• Weight: 0.4 kg

• Operating Temperature: –10 °C to +55 °C

• Storage Temperature: –20 °C to +70 °C

• Humidity Range: 5–95% RH (non-condensing)

• Certifications: COO (Certificate of Origin), CE, UL (depending on version)

• Origin: Japan

• Shipping Port: Xiamen, China

• Courier Options: DHL, UPS, TNT, FedEx, EMS

FAQ

What is the purpose of the AKB331-M002 Terminal Block?
The AKB331-M002 serves as an interface between field devices (such as sensors and actuators) and Yokogawa I/O modules, ensuring secure signal connections.

How does the AKB331-M002 simplify installation and maintenance?
It features screw-type terminals and clear labeling, which makes wiring, installation, and troubleshooting faster and easier.

What types of signals does the AKB331-M002 support?
The AKB331-M002 supports both analog and digital signals, depending on the paired I/O module.

Can the AKB331-M002 be used with all Yokogawa I/O modules?
Yes, the AKB331-M002 is compatible with a wide range of Yokogawa I/O modules in the CENTUM VP, CENTUM CS 3000, and ProSafe-RS systems.

What is the operating temperature range for the AKB331-M002?
The module operates effectively within the temperature range of –10 °C to +55 °C, making it suitable for most industrial environments.