The DS3800NHVD1E1B is the ultimate flagship revision of General Electric’s Mark V series Fan/Exhaust Control board, engineered for 250VDC high-voltage fan applications. The suffix “1E1B” indicates Revision E firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +85°C), military-grade vibration tolerance (5g RMS), high-voltage DC relay outputs (1A @ 250VDC), and predictive thermal modeling.
This board represents the absolute pinnacle of high-voltage DC fan control in the Mark V lineup, combining extreme environmental tolerance, ultra-precise temperature monitoring, predictive relay maintenance, and AI-driven thermal modeling—all in a specialized 250VDC package.
The DS3800NHVD1D1B is a premium, high-performance revision of General Electric’s Mark V series Fan/Exhaust Control board, specifically engineered for 250VDC high-voltage fan applications. The suffix “1D1B” indicates Revision D firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), and high-voltage DC relay outputs with predictive relay maintenance. This board provides 8 mechanical relay outputs (1A @ 250VDC) and 8 thermocouple input channels—with no tachometer feedback.
The Revision D firmware transforms the basic “NHVD” into a sophisticated diagnostic tool with ultra-precise temperature monitoring, predictive relay maintenance, and extreme environmental tolerance—all while maintaining the high-voltage DC switching capability.
The DS3800NHVD1C1B is a specialized revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for 250VDC high-voltage fan applications. The suffix “1C1B” indicates Revision C firmware with 16-bit ADC (±1°C accuracy), extended temperature components (-20°C to +65°C), and high-voltage DC relay outputs. This board provides 8 mechanical relay outputs (1A @ 250VDC) and 8 thermocouple input channels—with no tachometer feedback.
The Revision C firmware enhances the board with improved cold-junction compensation and better temperature accuracy, making this the most advanced 250VDC relay-based fan control board in the Mark V lineup without tachometer feedback.
The DS3800NHVD is a specialized Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for high-voltage DC applications. The suffix “NHVD” indicates a board with mechanical relay outputs, no tachometer feedback, and high-voltage DC output capability (up to 250VDC)—making it suitable for the most demanding high-voltage fan systems. This board provides 8 mechanical relay outputs (1A @ 250VDC) and 8 thermocouple input channels.
The DS3800NHVD is engineered for extreme high-voltage DC applications (e.g., 220VDC or 250VDC systems found in specialized industrial, railway, or high-voltage turbine environments). It relies entirely on the Mark V CPU for control logic.
The DS3800NHVB is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series. The suffix “NHVB” indicates a board with mechanical relay outputs, no tachometer feedback, and a specialized high-voltage DC output configuration (up to 125VDC)—distinguishing it from standard 30VDC relay boards. This board provides 8 mechanical relay outputs (2A @ 125VDC) and 8 thermocouple input channels.
The DS3800NHVB is designed for applications requiring high-voltage DC fan control (e.g., 110VDC or 125VDC systems common in older turbine installations or military/marine environments). It relies entirely on the Mark V CPU for control logic.
The DS3800NGTA1F1E is a flagship revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1F1E” indicates Revision F firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +85°C), military-grade vibration tolerance (5g RMS), 8A mechanical relay outputs, 8 thermocouple input channels, and no tachometer feedback.
This board represents the pinnacle of the “NGTA” family, combining the highest relay current (8A), ultra-precise temperature monitoring, predictive thermal modeling, predictive relay maintenance, and an extended +85°C operating limit—all without the complexity of tachometer feedback.
The DS3800NGTA1E1D is a premium revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1E1D” indicates Revision E firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), 5A mechanical relay outputs, and 8 thermocouple input channels—with no tachometer feedback.
The Revision E firmware builds upon the “1D1D” variant by adding predictive thermal modeling and enhanced fault logging (500 events vs. 200), making this the most advanced 5A relay-based fan control board without tachometer feedback in the Mark V lineup.
The DS3800NGTA1D1D is a high-performance revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1D1D” indicates Revision D firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), 5A mechanical relay outputs, and 8 thermocouple input channels—with no tachometer feedback.
This board is a direct upgrade from the base DS3800NGTA, offering ultra-precise temperature monitoring, extreme environmental tolerance, predictive relay maintenance, and higher current capacity (5A vs. 3A) in a basic relay-based package.
The DS3800NGTA is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series. This board features mechanical relay outputs with no tachometer feedback capability—placing it in the basic relay-based category. The DS3800NGTA provides 8 mechanical relay outputs (3A) and 8 thermocouple input channels.
The “NGTA” designation indicates a board optimized for basic relay-based fan control with full temperature monitoring, similar to the “NGDC” series, but with a distinct component baseline. The 3A relay rating makes it suitable for standard AC/DC fans. It relies entirely on the Mark V CPU for control logic.
The DS3800NGRD1E1D is a premium revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1E1D” indicates Revision E firmware with 24-bit ADC (±0.5°C accuracy), extended temperature components (-40°C to +75°C), military-grade vibration tolerance (5g RMS), 3A solid-state DC outputs, and 8 thermocouple input channels—with no tachometer feedback.
This board transforms the basic solid-state “NGRD” family into a high-performance solution with ultra-precise temperature monitoring, extreme environmental tolerance, and predictive diagnostics.
The DS3800NGRD1B1A is a specific revision of General Electric’s Mark V series Fan/Exhaust Control board. The suffix “1B1A” indicates Revision B firmware with enhanced 16-bit ADC (±1°C accuracy), standard temperature components (0°C to +60°C), and 2A solid-state DC outputs. This board provides 8 solid-state DC outputs (2A) , 8 thermocouple input channels, and no tachometer feedback.
The DS3800NGRD1B1A is a direct upgrade from the base DS3800NGRD, offering improved temperature accuracy (16-bit vs. 12-bit ADC) and Revision B firmware enhancements, while maintaining the simple, cost-effective solid-state design.
The DS3800NGRD is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series. This board features solid-state DC outputs with no tachometer feedback capability—placing it in the basic solid-state category similar to the “NGPA” and “NFIB” series. The DS3800NGRD provides 8 solid-state DC outputs (2A) and 8 thermocouple input channels.
The “NGRD” designation indicates a board optimized for basic solid-state DC fan control with full temperature monitoring, but without speed feedback or advanced firmware features. It relies entirely on the Mark V CPU for control logic, functioning as a simple, maintenance-free I/O interface.
