General Electric IS215REBFH1A Circuit Board

The GE IS215REBFH1A Circuit Board is an integral component of GE’s Mark VIe and Mark VI turbine and plant control systems, part of the acclaimed Speedtronic™ product family for industrial control and automation. Designed to perform essential functions in control logic execution and system interfacing, the IS215REBFH1A is typically used as a Relay Buffer Board that manages signal buffering and distribution between control modules and the relay terminal boards.

This module supports isolation of critical signals, prevents back-feed, and ensures high integrity signal paths in complex turbine protection and balance-of-plant (BoP) architectures. The board is built to exacting GE industrial standards to provide high reliability, extended service life, and robust performance under demanding plant conditions, including vibration, high temperatures, and electromagnetic noise.

It is widely implemented in gas turbine, steam turbine, and generator control systems, where fast, reliable signal processing is critical to maintaining operational continuity and protecting high-value plant assets.

Product Specifications

Applications

• Relay signal management in gas turbine control systems

• Steam turbine relay drive signal isolation and distribution

• Protection logic interfacing for generator drive systems

• Balance of Plant (BoP) auxiliary control signal buffering

• High-speed trip and alarm relay signal management

• Power generation plants using GE Mark VI or Mark VIe platforms

• Oil & gas turbine automation

• Chemical processing plant control systems

• Relay signal isolation in mining and metals refining industries

• Signal interfacing for pharmaceutical and life sciences production

Product Advantages

• Optimized for GE Mark VIe/Mark VI: Seamless plug-and-play integration with GE turbine control systems

• High signal integrity: Reduces noise and prevents false triggers by isolating and buffering relay signals

• Redundant path support: Provides reliability in fault-tolerant systems

• Low power consumption: Minimal heat generation improves system efficiency

• Diagnostic-ready: Built-in support for diagnostics and health monitoring

• Industrial-grade build: Designed to operate in extreme environments (vibration, temperature, EMI)

• Conformal-coated PCB: Enhanced protection against moisture, dust, and chemical exposure

• Global compliance: CE, UL, CSA certifications for international use

• Proven reliability: Extensively used in critical power generation and process industries

• Long product life cycle: Built for long-term system deployments with minimal maintenance

Frequently Asked Questions (FAQ)

1. What is the purpose of the IS215REBFH1A board?

   It is used to buffer and distribute relay signals between the control logic and relay terminal boards in turbine and plant control systems.

2. Is this board compatible with Mark VIe?

   Yes — it is designed for full compatibility with both GE Mark VIe and Mark VI systems.

3. What types of signals does it handle?

   It manages logic-level relay control signals, ensuring isolation and signal integrity.

4. Can this board be used in redundant control architectures?

   Yes — it supports redundant relay paths and is suitable for high-reliability designs.

5. What is the typical power consumption?

   Less than 5 W under normal operation.

6. Does it require special cooling?

   No — standard rack-mount placement in GE I/O racks is sufficient for cooling.

7. Is the board conformally coated?

   Yes — the PCB is conformal-coated for industrial durability.

8. How many relay channels can it buffer?

   Typically 32 relay paths are supported, depending on system configuration.

9. Can it be used in hazardous industrial environments?

   Yes — it meets industrial vibration, shock, and temperature compliance for heavy-duty use.

10. Is it field-replaceable?

    Yes — designed as a field-replaceable unit (FRU) within Mark VIe/VI racks.