Overview

The ABB 216MB66 Equipment Rack (HESG324511M1) is specifically designed for use within the REG216 protection system, providing a durable and structured mounting platform for multiple plug-in electronic modules. Installed in the hinged frame of a protection cubicle, it supports efficient front-access insertion, testing, and maintenance.

The rack incorporates a rear-mounted B448C parallel bus for communication between modules, along with standardized connectors for I/O and printer cables. Its robust mechanical construction ensures secure installation and stable electrical interfacing, even in environments subject to elevated vibration and electrical noise.

For example, in a transformer bay protection system, the 216MB66 enables deployment of differential protection, breaker control, and condition monitoring modules within a unified assembly.

Technical Data

Typical Applications

• Substation Protection Systems — Feeder, transformer, and busbar protection module hosting

• Power Generation Control — Mounts turbine and generator protection/control electronics

• Industrial Electrical Rooms — Organized installation of automation racks and relay modules

• Retrofit Projects — Replaces outdated racks with ABB-compatible modern infrastructure

• Modular Automation Cabinets — Flexible expansion of protection and interlocking functions

Its integration compatibility and mechanical reliability make it a preferred rack assembly for mission-critical electrical protection systems.

FAQ

Q: What modules are compatible with the 216MB66 rack?
A: It supports the full REG216 series of protection and control modules.

Q: How is the rack mounted?
A: In a hinged frame within a protection cubicle, allowing front access for installation and servicing.

Q: Does it support communication between modules?
A: Yes — via the B448C rear-mounted parallel bus.

Q: Is it suitable for modernization projects?
A: Absolutely — it is ideal for upgrading legacy ABB protection systems.