Key Features

1. High‑voltage wide‑range DC input: 90–150 VDC (nominal 125 VDC)

2. Dual redundant magnetic pickup (MPU)/proximity switch speed inputs

3. Supports isochronous (constant‑speed) and droop control modes

4. No DSLC/LON bus, only basic speed control & protection functions

5. RS‑232/422/485 serial ports with Modbus RTU/ASCII for configuration & monitoring

6. Startup fuel limit, overspeed shutdown, built‑in fault self‑diagnostics

7. Conformal‑coated PCB, anti‑vibration & EMI‑resistant, marine‑approved

Electrical Specifications

• Power Supply: 90–150 VDC

• Power Consumption: 40 W nominal

• Inrush Current: 22 A @ 15 ms

• Speed Input: 2‑channel MPU, 400 Hz–15 kHz

• Communication: RS‑232/422/485, Modbus RTU/ASCII

• Operating Temperature: −40 °C ~ +70 °C

• Certifications: CE, UL, Class I Div 2 hazardous area compliant, Lloyd’s Register marine certified

Mechanical & Environmental Features

• Mounting: Front panel‑mount

• Enclosure: Rugged metal housing

• Dimensions: 412.8 × 292.1 × 60.4 mm

• Weight: ~2.8 kg

• Low‑voltage equivalent: 8280‑410 (18–40 VDC)

Typical Applications

• Stand‑alone single‑generator high‑voltage power‑supply speed control

• Marine auxiliary engine governing for high‑voltage DC systems

• Off‑shore oil‑gas compressor & pump engine regulation

• Industrial heavy‑duty stationary prime‑mover speed control