Rear Mount Unit for INFI 90 DCS Systems | ABB IEMMU2

Product Description

Specialized Rear-Mount Chassis Infrastructure

The IEMMU21 (Model: IEMMU21) is a high-integrity module mounting unit designed for the ABB Bailey INFI 90 and Symphony Plus Distributed Control Systems (DCS). Unlike standard front-access racks, the IEMMU21 (Part Number: IEMMU21) is engineered for rear-mount configurations, providing the necessary mechanical housing and backplane interface for Harmony rack modules. This unit is essential for specific cabinet architectures where space optimization or cabling requirements dictate a rear-entry installation, ensuring consistent power distribution and communication bus stability for all installed modules.

Detailed Technical Specifications

The IEMMU21 (IEMMU21) provides a ruggedized framework for industrial control modules, maintaining precise alignment for critical bus connections.

• Manufacturer: ABB (Bailey Controls)

• Model Number: IEMMU21

• Type Designation: Module Mounting Unit (MMU)

• Mounting Style: Rear Mount (Back-panel installation)

• System Compatibility: Symphony Plus, INFI 90, Harmony Rack Systems

• Product Net Depth: 411.48 mm (16.2 in)

• Product Net Height: 505.46 mm (19.9 in)

• Product Net Width: 259.08 mm (10.2 in)

• Product Net Weight: 3.63 kg (8.0 lbs)

• Power Distribution: Support for primary and redundant power busbars

• Environmental Category: WEEE Small Equipment (No dimension > 50 cm)

• Industrial Rating: Designed for high-availability 24/7 process control environments

• Backplane Interface: Integrated digital communication bus for Harmony modules