Input

• Sensing input: 195–265 VAC (single-phase, 2-wire, phase-neutral sampling)
• Power input: Directly powered by generator phase voltage; minimum residual voltage for build-up: 5 VAC
• Frequency compatibility: 50/60 Hz (automatic adaptation)

Output

• DC excitation output: Continuous current up to 20 A DC; half-wave thyristor output with freewheeling diode
• Output voltage range: 0–115 VDC (dynamically adjusts with generator speed/load, rated at 230 VAC input)

Regulation

• Steady-state voltage regulation: ≤ ±2% RMS (with standard engine governing)
• Voltage adjustment range: 195–265 VAC (on-board potentiometer adjustment)
• Stability adjustment: On-board potentiometer for dynamic response tuning

Protection

• Under-frequency protection (adjustable knee points: 40–50 Hz)
• Over-voltage protection (OVP)
• Excitation circuit freewheeling diode for surge protection
• Short-circuit current limitation for excitation winding

Environment

• Protection class: Resin-molded open chassis, IP20 (dust and moisture resistant)
• Operating temperature range: -40°C to +85°C
• Storage temperature range: -40°C to +85°C

Additional Features

• Relay-less all-electronic circuit design
• Compatible with all brushless synchronous alternators
• Remote voltage adjustment capability
• On-board VOLT (voltage), FREQ (frequency protection), STAB (stability) adjustment potentiometers
• CE certification

Physical Specifications

• Dimensions: 156 mm (L) × 106 mm (W) × 43 mm (H)
• Weight: 535 g ± 2%
• Mounting: Open chassis, resin-encapsulated, for installation in alternator terminal box
• Cooling: Natural air cooling with integrated aluminum heat sink
• Wiring definition: WHITE NEUT (neutral), BROWN EXC+ (excitation positive), YELLOW EXC- (excitation negative), BLUE PHASE (phase line)