The DS3800NLCA1F1F is the absolute flagship of General Electric’s Mark V series Fan/Exhaust Control boards for standard-voltage AC/DC applications. The suffix “1F1F” indicates Revision F firmware with 24-bit ADC (±0.5°C / ±0.3°C), extended temperature components (-40°C to +85°C), military-grade vibration tolerance (5g RMS), 8A mechanical relay outputs, 4 thermocouple input channels, 8 RTD input channels (12 total temperature channels), 2 tachometer inputs, predictive relay maintenance, and predictive thermal modeling.
The “F” suffix also indicates redundant backplane communication paths for fault-tolerant operation and self-healing diagnostics for relay channels—making this board the ultimate solution for mission-critical AC/DC fan control.
The DS3800NLCA1E1E is a flagship revision of General Electric’s Mark V series Fan/Exhaust Control board, engineered for standard-voltage AC/DC applications with mechanical relay outputs, tachometer feedback, and dual temperature sensor support. The suffix “1E1E” indicates Revision E firmware with 24-bit ADC (±0.5°C / ±0.3°C accuracy), extended temperature components (-40°C to +85°C), military-grade vibration tolerance (5g RMS), 5A mechanical relay outputs, 4 thermocouple input channels, 8 RTD input channels (Pt100, 3-wire) for a total of 12 temperature channels, and 2 tachometer input channels.
The DS3800NLCA1E1E combines relay-based fan control with dual-sensor temperature monitoring (T/C + RTD), tachometer feedback, predictive relay maintenance, predictive thermal modeling, and extreme environmental tolerance (-40°C to +85°C)—making it the ultimate fan-dense relay-based board in the Mark V lineup.
The DS3800NLCA1D1C is a premium revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with mechanical relay outputs and tachometer feedback. The suffix “1D1C” 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, 4 thermocouple input channels, and 2 tachometer input channels.
The DS3800NLCA1D1C transforms the basic relay-based “NLCA” family into a high-performance solution with ultra-precise temperature monitoring, extreme environmental tolerance, predictive relay maintenance, higher current capacity (5A vs. 3A), and tachometer feedback for fan speed verification.
The DS3800NLCA is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage AC/DC applications with mechanical relay outputs and tachometer feedback. The “NLCA” designation indicates a board with:
8 mechanical relays (3A @ 115VAC / 30VDC) for fan control
4 thermocouple input channels for temperature monitoring
2 tachometer input channels for fan speed verification
12-bit ADC (±2°C accuracy)
Standard temperature range (0°C to +60°C)
The DS3800NLCA is a cost-effective, relay-based fan control board that adds tachometer feedback to the fan-dense “NLBA” design, allowing the Mark V CPU to verify actual fan rotation for safety-critical applications.
The DS3800NLBA1D1D is a premium revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with mechanical relay outputs. 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 4 thermocouple input channels—with no tachometer feedback.
The DS3800NLBA1D1D transforms the basic relay-based “NLBA” family into a high-performance solution with ultra-precise temperature monitoring, extreme environmental tolerance, predictive relay maintenance, and higher current capacity (5A vs. 3A).
The DS3800NLBA is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage AC/DC applications with mechanical relay outputs. The “NLBA” designation indicates a board with:
8 mechanical relays (3A @ 115VAC / 30VDC) for fan control
4 thermocouple input channels for temperature monitoring
No tachometer feedback capability
12-bit ADC (±2°C accuracy)
Standard temperature range (0°C to +60°C)
The DS3800NLBA is a cost-effective, relay-based fan control board optimized for fan-dense cabinets where AC or DC fan switching is required, but tachometer feedback is not necessary. It relies entirely on the Mark V CPU for control logic.
The DS3800NITA is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage DC applications with tachometer feedback capability. The “NITA” designation indicates a board with:
8 solid-state outputs (2A @ 24–48VDC) for DC fan control
4 thermocouple input channels for temperature monitoring
2 tachometer input channels for fan speed verification
12-bit ADC (±2°C accuracy)
Standard temperature range (0°C to +60°C)
The DS3800NITA is a cost-effective, solid-state fan control board that adds tachometer feedback to the fan-dense “NISA” design, allowing the Mark V CPU to verify actual fan rotation for safety-critical applications.
The DS3800NISA1C1D is a premium revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage DC applications. The suffix “1C1D” indicates Revision C 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 outputs, and 4 thermocouple input channels—with no tachometer feedback. Critically, the “1D” suffix adds adaptive temperature averaging to reduce unnecessary fan cycling.
This board is a direct upgrade from the “1C1C” variant, adding adaptive averaging that smooths rapid temperature fluctuations, reducing fan cycling by up to 30% and extending fan bearing life.
The DS3800NISA1C1C is a premium revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage DC applications. The suffix “1C1C” indicates Revision C 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 outputs, and 4 thermocouple input channels—with no tachometer feedback.
The DS3800NISA1C1C transforms the basic solid-state “NISA” family into a high-performance solution with ultra-precise temperature monitoring, extreme environmental tolerance, and onboard temperature threshold logic for autonomous fallback cooling.
The DS3800NISA1B1B is a revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage DC applications. The suffix “1B1B” indicates Revision B firmware with 16-bit ADC (±1°C accuracy), extended temperature components (-20°C to +65°C), and 3A solid-state outputs (upgraded from 2A). This board provides:
8 solid-state outputs (3A @ 24–48VDC)—50% higher current than the base model
4 thermocouple input channels for temperature monitoring
No tachometer feedback capability
The DS3800NISA1B1B is an upgraded version of the base DS3800NISA, offering improved temperature accuracy (16-bit vs. 12-bit ADC), higher output current (3A vs. 2A), and an extended operating temperature range.
The DS3800NISA is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage applications (non-high-voltage DC). The “NISA” designation indicates a board with:
8 solid-state outputs (2A @ 24–48VDC) for DC fan control
4 thermocouple input channels for temperature monitoring
No tachometer feedback capability
12-bit ADC (±2°C accuracy)
Standard temperature range (0°C to +60°C)
The DS3800NISA is a cost-effective, solid-state fan control board optimized for fan-dense cabinets where fewer temperature sensors monitor multiple fans. It relies entirely on the Mark V CPU for control logic.
The DS3800NHVP1B1B is a high-performance revision of General Electric’s Mark V series Fan/Exhaust Control board, engineered for high-voltage DC applications with a hybrid output configuration. The suffix “1B1B” indicates Revision B firmware with 24-bit ADC (±0.5°C / ±0.3°C accuracy), extended temperature components (-20°C to +65°C), and predictive relay maintenance. The “NHVP” designation indicates a board with:
8 mechanical relays (5A @ 125VDC)—the highest relay current in the entire Mark V high-voltage DC lineup, supporting the most demanding 125VDC exhaust fans
4 solid-state outputs (4A @ 24–48VDC)—with individual current monitoring
8 thermocouple input channels for temperature monitoring
8 RTD input channels (Pt100, 3-wire) for high-precision temperature monitoring—adding 16 total temperature channels
2 tachometer input channels for fan speed verification
The DS3800NHVP1B1B represents the ultimate in high-voltage DC fan control, combining the absolute highest relay current (5A @ 125VDC) with dual-sensor temperature monitoring, high-current solid-state outputs, tachometer feedback, 24-bit ADC, predictive relay maintenance, and an extended temperature range (-20°C to +65°C).
