4829 South 36th Street, Phoenix AZ 85040

WhisperWatt™ 25

Prime Rating — 20 kW (25 kVA)
Standby Rating — 22 kW (27.5 kVA)
Three-Phase, 60 Hertz, 0.8 PF

Standard Features

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  • ■ Heavy duty, 4-cycle, direct injection, turbocharged diesel engine provides maximum reliability.
    ■ Brushless alternator reduces service and maintenance requirements and meets temperature rise
    standards for Class F insulation systems.
    • Open delta excitation design provides virtually unlimited excitation for maximum motor starting
    • Automatic voltage regulator (AVR) provides precise regulation.
    ■ Electronic Governor Control —isochronous control, maintains frequency to within ±0.25%fromno load
    to full load.
    ■ Full load acceptance of stand by name plater ating in one step (NFPA 110, para 5-13.2.6).
    ■ Sound attenuated, weather resistant, steel housing provides operation at 65 dB(A) at 23 feet.
    Fully lockable enclosure allows safe unattended operation.
    ■ Internal fuel tank with direct reading of fuel gauge.
    ■ E-coat and powder coat paint provides durability and weather protection.
    ■ Fuel/water separator removes condensation from fuel for extended engine life. Panel mounted
    alarmlight included.
    ■ ECU750 — automatic CANBUS engine control with LED status indicator lights.

■ Automatic start/stop control — automatically starts the generator set during a commercial power
failure when used in conjunction with a transfer switch.
■ Complete engine analog instrumentation includes DC ammeter, oil pressure gauge, water temp.
gauge, fuel level gauge, tachometer/hour meter, preheat indicator, and emergency shutdown monitors.
■ Completegenerator analoginstrumentationincludes voltage regulator control, ammeter phase selector
switch, voltmeter phaseselector switch, ACvoltmeter, ACammeter, frequency meter, panel light, and
circuit breaker.
■ Automatic safety shutdown system monitors the water temperature, engine oil pressure, overspeed
and overcrank. Warning lights indicate abnormal conditions.
■ Complete power panel. Fully covered; three-phase terminals and single phase receptacles allow
fast and convenient hookup for most applications including temporary power boxes, tools and
lighting equipment. All are NEMAstandard.
■ Voltage selector switch allows easy to change voltages as your applications require.
■ EPA emissions certified – Tier 4 final emissions compliant.
■ Spill containment —Bunded designp rotects environment by capturing up to 124%of engine fluids.