The DS3800NPCS1B1B is a revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with a relay-primary hybrid output configuration. The suffix “1B1B” indicates Revision B firmware with enhanced 16-bit ADC (±1°C accuracy), extended temperature components (-20°C to +65°C), 5A mechanical relay outputs, 3A solid-state outputs, 8 thermocouple input channels, and 2 tachometer input channels.
The DS3800NPCS1B1B builds upon the “1A1B” variant with improved temperature accuracy (16-bit vs. 12-bit ADC) and Revision B firmware enhancements, while maintaining the extended temperature range (-20°C to +65°C), high-current relay outputs (5A), solid-state auxiliaries (3A), full thermocouple monitoring, and tachometer feedback.
The DS3800NPCS1A1B is a revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with a relay-primary hybrid output configuration. The suffix “1A1B” indicates Revision A firmware with standard 12-bit ADC (±2°C accuracy), extended temperature components (-20°C to +65°C), 5A mechanical relay outputs, 3A solid-state outputs, 8 thermocouple input channels, and 2 tachometer input channels.
The DS3800NPCS1A1B is distinguished from the base model by its extended temperature range (-20°C to +65°C) while maintaining the high-current relay outputs (5A), solid-state auxiliaries (3A), full thermocouple monitoring, and tachometer feedback.
The DS3800NPCS1A1A is the baseline revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with a relay-primary hybrid output configuration. The suffix “1A1A” indicates Revision A firmware (baseline), standard 12-bit ADC (±2°C accuracy), and standard temperature components (0°C to +60°C). This board provides:
8 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC fan control
4 solid-state outputs (3A @ 24–48VDC) for higher-current DC auxiliary control
8 thermocouple input channels for temperature monitoring
2 tachometer input channels for fan speed verification
The DS3800NPCS1A1A is the original, unmodified version of this relay-primary hybrid board—ideal for replacing like-for-like in legacy systems requiring high-power relay outputs, solid-state auxiliaries, full thermocouple monitoring, and tachometer feedback.
The DS3800NPCS is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage AC/DC applications with a relay-primary hybrid output configuration. The “NPCS” designation indicates a board with:
8 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC fan control
4 solid-state outputs (3A @ 24–48VDC) for higher-current DC auxiliary control
8 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 DS3800NPCS is a relay-primary hybrid board that prioritizes high-current AC/DC relay outputs (5A) while retaining solid-state auxiliaries (3A) and tachometer feedback, but without RTD inputs—making it a cost-effective solution for applications requiring high-power fan control and speed verification without redundant temperature sensing.
The DS3800NPCR1A1A is the baseline revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with a relay-primary hybrid output configuration. The suffix “1A1A” indicates Revision A firmware (baseline), standard 12-bit ADC (±2°C / ±0.5°C accuracy), and standard temperature components (0°C to +60°C). This board provides:
8 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC fan control
4 solid-state outputs (3A @ 24–48VDC) for higher-current DC auxiliary control
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 DS3800NPCR1A1A is the original, unmodified version of this comprehensive relay-primary hybrid board—ideal for replacing like-for-like in legacy systems requiring high-power relay outputs, solid-state auxiliaries, dual-sensor temperature monitoring, and tachometer feedback.
The DS3800NPCR is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage AC/DC applications with a hybrid output configuration. The “NPCR” designation indicates a board with:
8 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC fan control
4 solid-state outputs (3A @ 24–48VDC) for higher-current DC auxiliary control
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
12-bit ADC (±2°C / ±0.5°C accuracy)
Standard temperature range (0°C to +60°C)
The DS3800NPCR is a relay-primary hybrid board that prioritizes high-current AC/DC relay outputs (5A) while retaining solid-state auxiliaries (3A), dual-sensor temperature monitoring, and tachometer feedback on a single board—making it suitable for applications requiring high-power fan control with redundant temperature sensing.
The DS3800NPCM1B1B is a revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with a solid-state-primary hybrid output configuration and dual temperature sensor support. The suffix “1B1B” indicates Revision B firmware with enhanced 16-bit ADC (±1°C / ±0.5°C accuracy), extended temperature components (-20°C to +65°C), 3A solid-state outputs, 5A mechanical relay outputs, 8 thermocouple input channels, 8 RTD input channels (16 total temperature channels), and 2 tachometer input channels.
The DS3800NPCM1B1B is a direct upgrade from the base model, offering improved temperature accuracy (16-bit vs. 12-bit ADC), extended temperature range (-20°C to +65°C), and Revision B firmware enhancements.
The DS3800NPCM is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage AC/DC applications with a solid-state-primary hybrid output configuration. The “NPCM” designation indicates a board with:
8 solid-state outputs (3A @ 24–48VDC) for higher-current DC fan control
4 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC auxiliary control
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
12-bit ADC (±2°C / ±0.5°C accuracy)
Standard temperature range (0°C to +60°C)
The DS3800NPCM is the most comprehensive hybrid board in the Mark V lineup, combining dual-sensor temperature monitoring (T/C + RTD), 3A solid-state outputs, 5A relay auxiliaries, and tachometer feedback on a single board—making it suitable for applications requiring redundant temperature sensing.
The DS3800NPCG is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage AC/DC applications with a solid-state-primary hybrid output configuration. The “NPCG” designation indicates a board with:
8 solid-state outputs (3A @ 24–48VDC) for higher-current DC fan control
4 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC auxiliary control
8 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 DS3800NPCG is identical to the “NPCF” series but without tachometer feedback, making it a cost-effective solution for applications where fan speed verification is not required.
The DS3800NPCF1A1A is the baseline revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with a solid-state-primary hybrid output configuration. The suffix “1A1A” indicates Revision A firmware (baseline), standard 12-bit ADC (±2°C accuracy), and standard temperature components (0°C to +60°C). This board provides:
8 solid-state outputs (3A @ 24–48VDC) for higher-current DC fan control
4 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC auxiliary control
8 thermocouple input channels for temperature monitoring
2 tachometer input channels for fan speed verification
The DS3800NPCF1A1A is the original, unmodified version of this comprehensive hybrid board—ideal for replacing like-for-like in legacy systems that require 3A solid-state outputs, 5A relay auxiliaries, full 8-channel temperature monitoring, and tachometer feedback.
The DS3800NPCF is a Fan/Exhaust Control board from General Electric’s Mark V Speedtronic™ series, designed for standard-voltage AC/DC applications with a solid-state-primary hybrid output configuration. The “NPCF” designation indicates a board with:
8 solid-state outputs (3A @ 24–48VDC) for higher-current DC fan control
4 mechanical relays (5A @ 115VAC / 30VDC) for high-power AC/DC auxiliary control
8 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 DS3800NPCF is a comprehensive hybrid board that upgrades the thermocouple inputs to 8 channels (vs. 4 on the NPCE), making it suitable for applications requiring full temperature monitoring while maintaining 3A solid-state outputs, 5A relay auxiliaries, and tachometer feedback.
The DS3800NPCE1A1B is a revision of General Electric’s Mark V series Fan/Exhaust Control board, designed for standard-voltage AC/DC applications with a solid-state-primary hybrid output configuration. The suffix “1A1B” indicates Revision A firmware with standard 12-bit ADC (±2°C accuracy), extended temperature components (-20°C to +65°C), 3A solid-state outputs, 5A mechanical relay outputs, 4 thermocouple input channels, and 2 tachometer input channels.
The DS3800NPCE1A1B is distinguished from the “NPCD” series by its extended temperature range (-20°C to +65°C) while maintaining the higher-current solid-state outputs (3A) and 5A relay outputs.
