Norpro
385 Town Street
East Haddam, CT 06423
1-877-4NORPRO

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Power Max Yanmar Series - 20PMY

20 kW 60 Hz
16.5 kVA 50 Hz

Some options may be shown

Standard Features
Generator Specifications
Generator Ratings
Engine Specifications
Engine Electrical System
Fuel System
Fuel Consumption
Cooling System
Lubrication System
Exhaust System
Air Requirements
Sound Table
Power Max Isuzu Literature

Standard Features:
Digitec 300 Controller
Radiator Cooled Genset
Oil Drain Kit
Residential Grade Muffler
Steel Skid Base Mounting
Rubber Isolation Mounts
Battery Tray
Battery Cables

Generator Specifications:
Type
Leads: Quantity
Voltage Regulator
Insulation Material
Temperature Rise
Bearing(s)
Coupling
Voltage Regulation
Phase Type
Power Factor
kW @ 60 Hz
kVA @ 50 Hz
4 Pole
4
Solid State (Basler)
Class "H"
221° F ( 105°C)
Sealed
Direct Bolt Up
1%
1
1.0
20
16.5

Generator Ratings:

Amps @ 120 Volts 60hz
Amps @ 240 Volts 60hz
Amps @ 120 Volts 50hz
Amps @ 240 Volts 50hz

166.6
83.3
137.5
68.75

Engine Specifications:
Manufacturer
Engine: Model Type
Cylinder Arrangement
Displacement
Bore
Stroke
Compression Ratio
Rated RPM 60 hz
Rated RPM 50 hz
Max Power At Rated RPM (HP @ 60hz)
Max Power At Rated RPM (HP @ 50hz)
Cylinder Head Material
Block Material
Governor Type
Frequency Regulation
Air Filter Type
Yanmar
4TNE88
4 Cylinder, 4 Cycle
133.58 cu. in. (3,392.9 cu. mm)
3.46 in. (87.8 mm)
3.54 in. (89.9 mm)
19.1:1
1800
1500
29
N/A
Cast Iron
Cast Iron
Mechanical
3-5%
Replaceable Element

Engine Electrical System:
Ignition System
Battery Charging System Voltage (DC)
Battery Charging System (Amps)
Starter System Voltage (DC)
Battery Recommendation (CCA)
Battery Voltage (DC)
Starter kW
Electrical
12 Volt
40
12 Volt
500
12 Volt
1.2

Fuel System:
Fuel Shutoff Solenoid
Fuel Pump Priming
Fuel Pump
Fuel Type
Fuel Pump Lift
Fuel Line Supply
Fuel Line Return
Electrical
Electrical
Electrical
#2 Diesel
3.28 ft. (.99 m)
5/16 in. (8 mm)
5/16 in. (8 mm)

Fuel Consumption:
100% Load @ 60 Hz
75% Load @ 60 Hz
50% Load @ 60 Hz

100% Load @ 50 Hz
75% Load @ 50 Hz
50% Load @ 50 Hz
1.67 GPH (6.32 LPH)
1.26 GPH (4.76 LPH)
.84 GPH (3.17 LPH)

N/A
N/A
N/A

Cooling System:
Engine Coolant Capacity
Radiator Coolant Capacity
Water Pump Type
Fan Diameter
Fan & Alternator (HP)
Fan Type
Fan Rotation (from front of engine)
3.38 qts. (3.1 L)
6.98 qts. (6.6 L)
Centrifugal
14 in. (355.6 mm)
1
6 Blade Pusher
Clockwise

Lubrication System:
Type
Engine Oil Capacity With Filter
Oil Filter Type
Pressurized
7.82 qts. (7.4 L)
Cartridge

Exhaust System:
Exhaust Type
Max Allowable Back Pressure
Exhaust Outlet Size
Residential Muffler
1.447 in. hg (36.7 mm hg)
2.5 in. (63.5 mm) dia.

Air Requirements:
Engine Combustion Air Intake Requirements
At 60 Hz
At 50 Hz
Generator End Cooling Requirements
Sound Shield Air Space Requirements

62.61 cu. ft/min (19 m/min)
N/A
220 cu. ft/min (67 cu. m/min)
18" (457.2 mm) Min. All Sides

Sound Table:
dB(A) Without Sound Shield
Load
3'
10'
21'
100%
86
83
80
75%
85
83
79
50%
85
82
77

dB(A) With Sound Shield
Load
3'
10'
21'
100%
72
70
68
75%
73
68
66
50%
72
67
65

Norpro | 385 Town Street, East Haddam, CT 06423 | Toll Free: 1-877-4NORPRO | PH: 1-860-873-0100 | FAX: 1-860-873-0200

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