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ABB 216DB61

ABB 216DB61 is a binary input/output unit (I/O board) used in ABB’s RE.216 / REG216 protection and control systems. The associated part numbers commonly seen are HESG324063R100 and HESG216882/A. ABB documentation identifies the 216DB61 specifically as a binary input and output unit.

Product Positioning

The 216DB61 belongs to the ABB RE.216 protection-system I/O hardware and is used to interface binary field signals with the protection/control processing system. It is therefore more accurately classified as a binary I/O / protection interface board, rather than a general-purpose PLC digital I/O module.

Core Functions

• Receives binary status and control signals from external equipment.
• Provides binary signal interfaces for the RE.216 protection system.
• Transfers binary information to the protection-processing logic.
• Supports protection-related indications and trip/control signal handling.
• Works together with other RE.216 modules such as 216AB61, 216EA61 and 216GW61.

Design Features

The 216DB61 is designed specifically for power-system protection and control applications, where dependable binary signal acquisition and processing are important.

A key distinction is that ABB documentation lists the 216DB61 as a binary input/output unit, while the 216GW61 is an input-transformer module and the 216EA61 is associated with analogue input acquisition.

Hardware Composition

Typical identification markings include:

Some aftermarket listings also show suffix variants such as HESG324063R100/J or HESG324063R100/G, so the complete nameplate should be checked before replacement.

Typical Applications

• Electrical substation protection
• Generator and transformer protection
• Circuit-breaker status monitoring
• Protection trip and signalling circuits
• Power-system automation and control
• RE.216 / REG216 retrofit and maintenance

Maintenance Considerations

Because this is a protection-system board, part-number and hardware-revision matching is important. Before replacement, verify:

1. 216DB61 model designation
2. HESG324063R100 article number
3. HESG216882/A PCB designation
4. Hardware revision/suffix
5. Connector and terminal arrangement
6. Compatibility with the installed RE.216/REG216 configuration

The unit appears to be an older/discontinued ABB product, with current availability mainly through specialist industrial automation spare-parts suppliers.

Overall Evaluation

ABB 216DB61 is a specialized binary I/O interface board for ABB RE.216/REG216 protection systems. Its main value is reliable interfacing of binary field/protection signals with the protection-processing system. For replacement projects, matching the complete HESG part number and revision is more important than simply matching “216DB61.”