MD300
PA R A L L E L I N G U N I T
Industrial Diesel Generator Set
EPA Certified Stationary Emergency
1 of 5
Standby Power Rating
375kVA 300kW 60Hz
Prime Power Rating*
338kVA 270KW 60Hz
Generator image used for illustration purposes only
*EPA Certified Prime ratings are not available in the U.S. or its Territories for engine model year 2011 and beyond
features
Generator Set
= PROTOTYPE & TORSIONALLY TESTED
= UL2200 TESTED
= RHINOCOAT PAINT SYSTEM
= WIDE RANGE OF ENCLOSURES AND TANKS
Engine
= EPA COMPLIANT
= INDUSTRIAL TESTED, GENERAC APPROVED
= POWER-MATCHED OUTPUT
= INDUSTRIAL GRADE
Alternator
= TWO-THIRDS PITCH
= LAYER WOUND ROTOR & STATOR
= CLASS H MATERIALS
= DIGITAL 3-PHASE VOLTAGE CONTROL
Controls
= ENCAPSULATED BOARD W/ SEALED HARNESS
= 4-20mA VOLTAGE-TO-CURRENT SENSORS
= SURFACE-MOUNT TECHNOLOGY
= ADVANCED DIAGNOSTICS & COMMUNICATIONS
benefits
4 PROVIDES A PROVEN UNIT
4 ENSURES A QUALITY PRODUCT
4 IMPROVES RESISTANCE TO ELEMENTS
4 PROVIDES A SINGLE SOURCE SOLUTION
4 ENVIRONMENTALLY FRIENDLY
4 ENSURES INDUSTRIAL STANDARDS
4 ENGINEERED FOR PERFORMANCE
4 IMPROVES LONGEVITY AND RELIABILITY
4 ELIMINATES HARMFUL 3RD HARMONIC
4 IMPROVES COOLING
4 HEAT TOLERANT DESIGN
4 FAST AND ACCURATE RESPONSE
4 EASY, AFFORDABLE REPLACEMENT
4 NOISE RESISTANT 24/7 MONITORING
4 PROVIDES VIBRATION RESISTANCE
4 HARDENED RELIABILITY
primary codes and standards
2 of 5
MD300
ENGINE SPECIFICATIONS
General
Make
EPA Emissions Compliance
EPA Emissions Reference
Cylinder #
Type
Displacement - L
Bore - mm (in.)
Stroke - mm (in.)
Compression Ratio
Intake Air Method
Cylinder Head Type
Piston Type
Crankshaft Type
Engine Governing
Governor
Frequency Regulation (Steady State)
Lubrication System
Oil Pump Type
Oil Filter Type
Crankcase Capacity - L (qts)
Generac
Stationary Emergency
See Emissions Data Sheet
6
In-Line
10.3
125 (4.92)
140 (5.51)
16.5:1
Turbocharged/Aftercooled
4-Valve
Aluminum
Dropped Forged Steel
Electronic Isochronous
± 0.25%
Gear
Full-Flow
30 (31.68)
application and engineering data
Cooling System
Cooling System Type
Water Pump Flow
Fan Type
Fan Speed (rpm)
Fan Diameter mm (in.)
Coolant Heater Standard Wattage
Coolant Heater Standard Voltage
Fuel System
Fuel Type
Fuel Specifications
Fuel Filtering (microns)
Fuel Inject Pump Make
Fuel Pump Type
Injector Type
Engine Type
Fuel Supply Line - mm (in.)
Fuel Return Line - mm (in.)
Engine Electrical System
System Voltage
Battery Charging Alternator
Battery Size (at 0ºC)
Battery Group
Battery Voltage
Ground Polarity
Closed Recovery
Pre-Lubed, Self Sealing
Pusher
2250 rpm
762 (30.0)
2000
240VAC
Ultra Low Sulfur Diesel Fuel
ASTM
5
Electronic
Engine Driven Gear
Common Rail
Direct Injection
12.7(½")
12.7(½")
24VDC
Std
1155 CCA
8D
(2) - 12VDC
Negative
ALTERNATOR SPECIFICATIONS
Standard Model
Poles
Field Type
Insulation Class - Rotor
Insulation Class - Stator
Total Harmonic Distortion
Telephone Interference Factor (TIF)
Standard Excitation
Bearings
Coupling
Load Capacity - Standby
Prototype Short Circuit Test
520 mm Generac
4
Revolving
H
H
< 5%
< 50
Permanent Magnent
Single Sealed Cartridge
Direct, Flexible Disc
100%
Yes
Voltage Regulator Type
Number of Sensed Phases
Regulation Accuracy (Steady State)
Digital
All
± 0.25%
CODES AND STANDARDS COMPLIANCE (WHERE APPLICABLE)
NFPA 99
NFPA 110
ISO 8528-5
ISO 1708A.5
ISO 3046
BS5514
SAE J1349
DIN6271
IEEE C62.41 TESTING
NEMA ICS 1
UL2200
PARALLELING CONTROLS
AUTO-SYNCHRONIZATION PROCESS
ISOCHRONOUS LOAD SHARING
REVERSE POWER PROTECTION
MAXIMUM POWER PROTECTION
ELECTRICALLY OPERATED, MECHANICALLY HELD PARALLELING SWITCH
SYNC CHECK SYSTEM
INDEPENDENT ON-BOARD PARALLELING
OPTIONAL PROGRAMMABLE LOGIC FULL AUTO BACK-UP CONTROL (PLS)
Rating Definitions:
Standby – Applicable for a varying emergency load for the duration of a utility power outage with no overload capability. (Max. load factor = 70%)
Prime – Applicable for supplying power to a varying load in lieu of utility for an unlimited amount of running time. (Max. load factor = 80%) A 10% overload capacity is available for 1 out of every 12 hours.
MD300
POWER RATINGS (kW)
Three-Phase 120/208VAC @0.8pf
Three-Phase 277/480VAC @0.8pf
Three-Phase 346/600VAC @0.8pf
288 kW
300 kW
300 kW
STANDBY
Amps: 1000
Amps: 451
Amps: 361
270 kW
270 kW
270 kW
operating data (60Hz)
PRIME
Amps: 937
Amps: 406
Amps: 325 3 of 5
STARTING CAPABILITIES (sKVA)
Alternator
Standard
Upsize 1
Upsize 2
FUEL kW
300
400
500
10%
303
387
457
15%
454
581
686
20%
480VAC
605
775
914
25%
757
968
1143
30%
908
1162
1371 sKVA vs. Voltage Dip
35%
1059
1356
1600
10%
227
345
-
15%
341
570
-
208/240VAC
20%
454
835
-
25%
568
1100
-
30%
681
1450
-
35%
794
1710
-
Fuel Pump Lift - in (mm)
36 (900)
Total Fuel Pump Flow (Combustion + Return)
31 gph
Fuel Consumption Rates*
Percent Load
25%
50%
75%
STANDBY gph
7.6
12.6
17.4
lph
28.7
47.7
65.9
Percent Load
25%
50%
75%
PRIME gph
6.9
11.6
15.8
lph
26.1
43.9
59.8
100% 22.1
83.7
100% 19.9
75.3
* Refer to "Emissions Data Sheet" for maximum fuel flow for EPA and SCAQMD permitting purposes.
COOLING
COMBUSTION AIR REQUIREMENTS
Flow at Rated Power cfm (m3/min)
STANDBY
850 (24.07)
PRIME
765 (21.67)
ENGINE
Rated Engine Speed
Horsepower at Rated kW**
Piston Speed
BMEP rpm hp
ft/min psi
STANDBY
1800
480
1654
336
** Refer to “Emissions Data Sheet” for maximum bHP for EPA and SCAQMD permitting purposes.
PRIME
1800
432
1654
302
Coolant Flow per Minute
Heat Rejection to Coolant
Inlet Air
Max. Operating Radiator Air Temp
Max. Operating Ambient Temperature
Coolant System Capacity
Maximum Radiator Backpressure
EXHAUST gpm (lpm)
Exhaust Flow (Rated Output)
Max. Backpressure (Post Silencer)
Exhaust Temp (Rated Output)
Exhaust Outlet Size (Open Set)
BTU/hr
cfm (m3/min)
Fº (Cº)
Fº (Cº) gal (L) in H
2
O
STANDBY
95 (360)
814,783
14,505 (411)
122 (50)
104 (40)
16.6 (63)
1.5
PRIME
95 (360)
733,673
14,505 (411)
122 (50)
104 (40)
16.6 (63)
1.5
STANDBY PRIME
cfm (m 3 /min) 2240 (63.4) 2016 (57.1) inHg (Kpa) 1.5 (5.1) 1.5 (5.1)
ºF (ºC) 1020 (549) 918 (492)
NPT (male) 101.6 (4) 101.6 (4)
Deration – Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site conditions. Please consult a Generac Power Systems Industrial
Dealer for additional details. All performance ratings in accordance with ISO3046, BS5514, ISO8528 and DIN6271 standards.
4 of 5
MD300
GENERATOR SET
Genset Vibration Isolation
IBC Seismic Certified/Seismic Rated Vibration Isolators
Extended warranty
Gen-Link Communications Software
Steel Enclosure
Aluminum Enclosure
Enclosure Lighting Kits
ENGINE SYSTEM
General
Oil Drain Extension
Oil Make-Up System
Oil Heater
Air cleaner
Fan guard
Radiator duct adapter
Industrial Exhaust Silencer
Critical Exhaust Silencer
Fuel System
Fuel lockoff solenoid
Secondary fuel filter
Stainless steel flexible exhaust connection
Flexible fuel lines
Primary fuel filter
Single Wall Tank (Export Only)
UL 142 Fuel Tank
Cooling System
120VAC Coolant Heater
208VAC Coolant Heater
240VAC Coolant Heater
Other Coolant Heater
Closed Coolant Recovery System
UV/Ozone resistant hoses
Factory-Installed Radiator
Radiator Drain Extension
Engine Electrical System
Battery charging alternator
Battery cables
Battery tray
Battery box
Battery heater
Solenoid activated starter motor
10A UL float/equalize battery charger
Rubber-booted engine electrical connections
ALTERNATOR SYSTEM
UL2200 GENprotect™ Std
Main Line Circuit Breaker (Output connections on paralleling switch) Std
Alternator Upsizing
Anti-Condensation Heater
Opt
Opt
Tropical coating
Permanent Magnet Generator
Opt
Std
Std
Opt
Opt
Std
Std
Std
Std
Opt
Std
Std
Std
Std
Opt
Opt
-
Std
Std
Std
Std
Opt
Opt
Std
Opt
Std
Std
Std
Std
Opt
Opt
-
Opt
Std
Opt
Opt
Opt
Opt
Opt
Opt
standard features and options
CONTROL SYSTEM
Control Panel
Digital H Control Panel - Dual 4x20 Display
Digital G-100 Control Panel - Touchscreen
Digital G-200 Paralleling Control Panel - Touchscreen
Programmable Crank Limiter
21-Light Remote Annunciator
Remote Relay Panel (8 or 16)
7-Day Programmable Exerciser
Special Applications Programmable PLC
RS-232
RS-485
All-Phase Sensing DVR
Full System Status
Utility Monitoring (Req. H-Transfer Switch)
2-Wire Start Compatible
Power Output (kW)
Power Factor
Reactive Power
All phase AC Voltage
All phase Currents
Oil Pressure
Coolant Temperature
Coolant Level
Oil Temperature
Fuel Pressure
Engine Speed
Battery Voltage
Frequency
Date/Time Fault History (Event Log)
Low-Speed Exercise
Isochronous Governor Control
-40deg C - 70deg C Operation
Waterproof Plug-In Connectors
Audible Alarms and Shutdowns
Not in Auto (Flashing Light)
Auto/Off/Manual Switch
E-Stop (Red Mushroom-Type)
Remote E-Stop (Break Glass-Type, Surface Mount)
Remote E-Stop (Red Mushroom-Type, Surface Mount)
Remote E-Stop (Red Mushroom-Type, Flush Mount)
NFPA 110 Level I and II (Programmable)
Remote Communication - RS232
Remote Communication - Modem
Remote Communication - Ethernet
PLS Full Auto Back-Up for PM-SC
Alarms (Programmable Tolerances, Pre-Alarms and Shutdowns)
Low Fuel
Oil Pressure (Pre-programmed Low Pressure Shutdown)
Coolant Temperature (Pre-programmed High Temp Shutdown)
Coolant Level (Pre-programmed Low Level Shutdown)
Oil Temperature
Engine Speed (Pre-programmed Overspeed Shutdown)
Voltage (Pre-programmed Overvoltage Shutdown)
Battery Voltage
Std
Std
Std
Opt
Std
Std
Std
Std
Std
-
Std
Std
Std
Std
Std
Std
Std
Opt
Opt
Opt
Std
Std
Opt
Opt
Opt
Std
Std
Std
Std
Std
Std na na
Std
Std
Opt
Opt
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Std
Opt
Std
Std
Std
MD300
L
L
L
W
W
W
dimensions, weights and sound levels
H
OPEN SET
RUN TIME HOURS USABLE CAPACITY (GAL)
NO TANK
8
20
-
183
438
31
43
60
693
946
1325
136
208
278
L
136
136
136
H
STANDARD ENCLOSURE
RUN TIME HOURS USABLE CAPACITY (GAL)
NO TANK
8
-
183
20
31
43
60
438
693
946
1325
175
208
278
L
175
175
175
H
LEVEL 1 ACOUSTIC ENCLOSURE
RUN TIME HOURS USABLE CAPACITY (GAL)
NO TANK
8
-
183
20
31
43
60
438
693
946
1325
200
234
304
L
200
200
200
H
LEVEL 2 ACOUSTIC ENCLOSURE
RUN TIME HOURS USABLE CAPACITY (GAL)
NO TANK
8
-
183
20
31
43
60
438
693
946
1325
181
208
278
L
181
181
181
58
58
58
W
58
58
58
58
58
58
W
58
58
58
58
58
58
W
58
58
58
58
58
58
W
58
58
58
105
108
108
H
68
81
93
WT
6088
7036
7348
7651
9295
10128 dBA*
89
5 of 5
115
118
118
H
78
91
103
WT
8106
9054
9366
9669
11313
12146 dBA*
84
115
118
118
H
78
91
103
WT
8479
9427
9739
10042
11686
12519 dBA*
78
144
147
147
H
107
120
132
WT
7988
8936
9248
9551
11195
12028 dBA*
75
L W
* All measurements are approximate and for estimation purposes only. Weights are without fuel in tank. Sound levels measured at 23ft (7m) and does not account for ambient site conditions.
YOUR FACTORY RECOGNIZED GENERAC INDUSTRIAL DEALER
Tank Options
MDEQ
Florida DERM/DEP
Chicago Fire Code
OPT
OPT
OPT
IFC Certification
ULC
CALL
CALL
Other Custom Options Available from your Generac Industrial Power Dealer
Specification characteristics may change without notice. Dimensions and weights are for preliminary purposes only. Please consult a Generac Power Systems Industrial Dealer for detailed installation drawings.
Generac Power Systems, Inc. • S45 W29290 HWY. 59, Waukesha, WI 53189 • generac.com
©2012 Generac Power Systems, Inc. All rights reserved. All specifications are subject to change without notice. Bulletin 0185630SBY-C / Printed in U.S.A. 02/28/12
