TECHNICAL SPECIFICATIONS 3600/3000 RPM MODELS
Dimensions (in inches) for 3600/3000 rpm versions:
Model 3.5 6 8 12
• length 19.9 26 26 31.9
• width 15.9 19.5 19.5 20.7
• height 19.7 21.7 21.7 24.2
• A 12 16 16 21.7
• B 16.1 19.5 19.5 21.7
• C 16.9 20.5 20.5 23.6
top view
Whisper 3.5,
part # 50900555.
Whisper 3.5 Whisper 6 Whisper 8 Whisper 12
Part # 120V or 120/240V 60Hz 50900555 50902055 50903055 50904055
Part # 230V/50Hz* 50900500 50902005 50903005 50904005
Engine type & manufacturer 4-stroke Kubota 4-stroke Mitsubishi 4-stroke Mitsubishi 4-stroke Mitsubishi
Nominal rpm 60 or 50Hz 3600 or 3000 RPM 3600 or 3000 RPM 3600 or 3000 RPM 3600 or 3000 RPM
Engine model OC60 L2E L2E L3E
Number of cylinders 1223
Cylinder capacity 276 cc 635 cc 635 cc 952 cc
Bore & stroke 2.8 x 2.7 inch 2x 3 x 2.8 inch 2x 3 x 2.8 inch 3x 3 x 2.8 inch
Air consumption@3000 rpm 0.38 m
3
/min. 0.95 m
3
/min 0.95 m
3
/min 1.43 m
3
/min
Engine cooling oil-cooled indirect watercooling indirect watercooling indirect watercooling
ø wet marine exhaust hose int. 1
5
⁄8”1
5
⁄8”1
5
⁄8”1
5
⁄8”
ø dry exhaust pipe 1”BSP 1" BSP n.a. 1
1
⁄2" BSP
Outside water pump (impeller type) Mastervolt model K Mastervolt model M Mastervolt model M Mastervolt model M
Pump capacity 2.6-3.2 gpm 4.8 gpm 4.8 gpm 4.8 gpm
Fuel diesel diesel diesel diesel
Fuel consumption 0.18-0.31 gph 0.26-0.66 gph 0.26-0.79 gph 0.26-1.05 gph
Fuel supply pump electric 12V DC electric 12V DC electric 12V DC electric 12V DC
Location oil refill cap top & side top & side top & side top & side
Starting system 12V DC grounded 12V DC grounded 12V DC grounded 12V DC grounded
Ground isolated version optional optional optional optional
Starter battery, gel type, optional 12V 55 Ah / group 24 12V 85 Ah / group 27 12V 85 Ah / group 27 12V 85 Ah / group 27
Battery charge current auxiliary winding 8A alternator 40A alternator 40A alternator 40A
Remote control panel Digital Diesel Control Digital Diesel Control Digital Diesel Control Digital Diesel Control
Second remote control panel optional optional optional optional
Alternator water-cooled, brushless, synchronised
Voltage regulation capacitor capacitor capacitor capacitor
Nominal voltage 60Hz / 50Hz 240V, 120/240V / 230V
Nominal power 60Hz 4 kVA, 3.2 kW 7.1 kVA, 5.7 kW 9.2 kVA, 7.4 kW 14.5 kVA, 11.6 kW
Nominal power 50Hz 3.75 kVA, 3 kW 6.25 kVA, 5 kW 8 kVA, 6.4 kW 12 kVA, 9.6 kW
Power factor 0.8 0.8 0.8 0.8
Tolerance frequency (Hz) ± 5% ± 5% ± 5% ± 5%
Tolerance voltage (V) ± 6% ± 6% ± 6% ± 6%
Dry weight 190 lbs 392 lbs 392 lbs 462 lbs
Max. angle when continually in use 25º in any direction
* Please consult our website (www.mastervolt.com) for the exact specifications of our 50Hz versions.
• Optional: generator and installation kits for keelcooling applications (dry exhaust) and ungrounded versions.
(10 pages)
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