Description
Overview
The IS215REBFH1B I/O Expansion Board is part of GE’s Mark VIe turbine control platform and is engineered to provide high‑integrity relay output capability for safety‑critical turbine protection systems. Designed for demanding power‑generation environments, the board delivers secure signal switching, robust electrical isolation, and dependable operation under extreme environmental conditions.
Functional Characteristics
This module includes sixteen Form‑C relay outputs, each isolated through 5 kV optical barriers to ensure clean signal separation and immunity to electrical noise. The IS215REBFH1B supports rapid relay actuation with switching times of 10 ms or less, enabling fast response to shutdown, trip, and protection commands.
The board is built to operate across a wide temperature range from –40°C to +70°C and complies with MIL‑STD‑202G vibration requirements, making it suitable for installation in turbine enclosures, auxiliary control panels, and other high‑vibration industrial locations.
System Integration
The IS215REBFH1B is designed for maximum system uptime. Hot‑swap capability allows technicians to replace the module without interrupting turbine operation, a critical advantage in continuous‑duty power plants. Diagnostic LEDs and onboard test functions simplify troubleshooting and reduce maintenance time.
Redundant power‑input support and fail‑safe relay configurations ensure that the board maintains operational integrity even during abnormal system conditions. Its compact footprint allows efficient use of panel space while maintaining accessibility for service.
Mechanical and Electrical Design
The board uses industrial‑grade components and a reinforced PCB structure to ensure long‑term reliability. Its layout supports clear wiring paths and secure mounting within Mark VIe control racks. Optical isolation and robust relay design help prevent ground loops and maintain signal fidelity.
Technical Specifications
| Parameter |
Specification |
| Model |
IS215REBFH1B |
| Product Type |
I/O Expansion Board |
| Brand |
GE |
| Product Range |
Mark VIe |
| Relay Outputs |
16 Form‑C contacts |
| Isolation |
5 kV optical isolation |
| Switching Time |
≤10 ms |
| Operating Temperature |
–40°C to +70°C |
| Vibration Standard |
MIL‑STD‑202G |
| Hot‑Swap Support |
Yes |
| Diagnostics |
LED indicators, built‑in test features |
| Weight |
0.52 kg |
| Dimensions |
4 × 18.6 × 26.1 cm |
| HS Code |
8537101190 |
| Minimum Order |
1 unit |
| Origin |
USA |
| Availability |
In stock |
| Lifecycle Status |
Active |
Application Scenarios
-
Gas turbine emergency shutdown systems
-
Steam turbine overspeed protection
-
Safety‑critical relay output expansion in Mark VIe systems
-
High‑vibration, high‑temperature industrial control environments
FAQ
Q: What type of relay outputs does the IS215REBFH1B provide? A: It includes sixteen Form‑C relay outputs with 5 kV optical isolation.
Q: Can the board be replaced while the system is running? A: Yes. It supports hot‑swappable installation for uninterrupted operation.
Q: What environments is the board designed for? A: It is rated for –40°C to +70°C and meets MIL‑STD‑202G vibration standards.
