DS3800NHVB | GE Speedtronic High-Voltage Interface Board

Description

Product Introduction

The DS3800NHVB is a high-voltage interface board for Mark IV systems—the “H” in the suffix indicates high-voltage functionality, the “V” indicates voltage, and the “B” is a manufacturing revision. This board provides isolated high-voltage I/O connectivity for field devices in turbine control applications. It was used in installations where high-voltage signals needed to be interfaced with the Mark IV control system—typically for valve position feedback, high-voltage actuator control, or other field devices operating at higher voltages.

The board plugs into the Mark IV backplane and provides a high-voltage interface with electrical isolation to protect the backplane from voltage transients. Compare this to the DS3800NIVA (another high-voltage interface board) or the DS3800NIOA (I/O board). The NHVB is specifically for high-voltage applications where isolation and protection are critical.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

What does the NHVB board do?
The NHVB is a high-voltage interface board for Mark IV systems. It provides isolated high-voltage I/O connectivity for field devices in turbine control applications.

What’s the difference between the NHVB and the NIVA?
The NHVB and NIVA are both high-voltage interface boards. The NHVB typically has a different I/O configuration or voltage rating. Check your system documentation for the specific configuration requirements.

What’s the voltage rating of this board?
The voltage rating depends on the specific configuration. Check the board’s label or your system documentation for the exact voltage rating. The NHVB was designed for high-voltage field device connectivity.

Can I hot-swap this board?
No. Mark IV backplanes are not hot-swappable. Power down the cabinet, lock out the breaker, and wait 60 seconds before removing or installing the board.

What’s the most common failure mode on the NHVB?
We’ve serviced about a dozen NHVB boards. The most common failure is the high-voltage isolation circuitry—it can degrade over time, causing leakage or breakdown. The second most common failure is the edge connector—corrosion from humidity. The board is repairable.

What’s your warranty and lead time?
We stock the NHVB in limited quantities. Lead time is 1-2 business days. We offer a 1-year warranty. We test every board with a 24-hour burn-in and a diagnostic verification. The test report is included.

Is this board compatible with the Mark VIe?
No. This board is for Mark IV systems only. The backplane architecture is different.

TRICONEX 3625C1
NI PXI-4472B
ABB PP836A
ICS T8231