DCA45USI Data Sheet
 DCA45USI
MQ POWER Series Generator
WhisperWatt™
Prime Rating — 36 kW (45 kVA)
Standby Rating — 40 kW (50 kVA)
Three-Phase, 60 Hertz, 0.8 PF
STANDARD FEATURES
„„Heavy duty, 4-cycle, direct injection, diesel engine provides
maximum reliability.
„„Brushless alternator reduces service and maintenance
requirements and meets temperature rise standards for Class
H insulation systems.
„„Open delta excitation design provides virtually unlimited
excitation for maximum motor starting capability.
„„Automatic voltage regulator (AVR) provides precise regulation.
„„Electronic Governor Control (Crystal Sync) — maintains
frequency to within ±0.25% from no load to full load.
„„Full load acceptance of standby nameplate rating in one step
(NFPA 110, para 5-13.2.6).
„„Sound attenuated, weather resistant, steel housing provides
operation at 58 dB(A) at 23 feet. Fully lockable enclosure
allows safe unattended operation.
„„Internal fuel tank with direct reading of fuel gauge.
„„Seven stage powder coat paint system provides durability
and weather protection.
„„Fuel/water separator removes condensation from fuel for
extended engine life. Panel mounted alarm light included.
„„Complete engine analog instrumentation includes DC
ammeter, oil pressure gauge, water temp. gauge, fuel level
gauge, tachometer/hour meter, preheat indicator, emergency
shutdown monitors.
„„Automatic start/stop control — automatically starts the
generator set during a commercial power failure when used
in conjunction with a transfer switch.
„„Complete generator analog instrumentation includes voltage
regulator control, ammeter phase selector switch, voltmeter
phase selector switch, AC voltmeter, AC ammeter, 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. The GFCI receptacles
are NEMA 5-20, and the auxilillary outputs use CS6369 twistlock receptacles.
„„Simultaneous single and three phase power.
„„Voltage selector switch offers the operator a wide range of
voltages that are manually selectable. Fine tuning of the
output voltage can be accomplished by adjusting the voltage
regulator control knob to obtain the desired voltage.
„„EPA emissions certified - Interim Tier 4 emissions compliant.
DCA45USI — MQ POWER SERIES GENERATOR — REV. #12 (01/12/15)
DCA45USI
MQ POWER Series Generator
SPECIFICATIONS
Cooling System
Generator Specifications
Design
Armature Connection
Phase
Standby Output
Prime Output
3Ø Voltage (L-L/L-N)
Voltage Selector Switch at 3Ø 240/139
3Ø Voltage (L-L/L-N)
Voltage Selector Switch at 3Ø 480/277
1Ø Voltage (L-L/L-N)
(Voltage Selector Switch at 1Ø 240/120)
Power Factor
Voltage Regulation (No load to full load)
Generator RPM
Frequency
No. of Poles
Excitation
Frequency
Frequency Regulation:
No Load to Full Load
Frequency Regulation: Steady State
Insulation
Sound Level dB(A) Full load at 23 feet
Revolving field, self-ventilated
Drip-proof, single bearing
Star with Neutral
Zig Zag
3
Single
40 KW (50 KVA)
27.6 KW
36 KW (45 KVA)
26 KW
208Y/120, 220Y/127,
N/A
240Y/139
416Y/240, 440Y/254,
N/A
480Y/277
N/A
240/120
0.8
1.0
±0.5%
1800
60 Hz
4
Brushless with AVR
60 Hz
Isochronous under varying loads from
no load to 100% rated load
±0.25% of mean value for constant loads
from no load to full load.
Class H
58
Fan Load
Coolant Capacity (with radiator)
Coolant Flow Rate (per minute)
Heat Rejection to Coolant (per minute)
Heat Rejection to Room (per minute)
Maximum Coolant Friction Head
Maximum Coolant Static Head
Ambient Temperature Rating
0.54 hp (0.7 kW)
3.15 gallons (12 liters)
15.4 gallons (58.5 liters)
1640 Btu (1.73 MJ)
379 Btu (0.40 MJ)
6.1 psi (42 kPa)
21 feet (6.4 meters)
104°F (40°C)
Combustion Air
Maximum Air Cleaner Restriction
Alternator Cooling Air
Radiator Cooling Air
99 cfm (2.8 m3/min)
25 in. H2O (6.25 kPa)
526 cfm (14.9 m3/min)
1472 cfm (41.7 m3/min)
Air
Exhaust System
Gas Flow (full load)
Gas Temperature
Maximum Back Pressure
Amperage
Rated Voltage
1Ø 120 Volt
1Ø 240 Volt
Engine Specifications
Make / Model
Emissions
Starting System
Design
Displacement
No. cylinders
Bore x Stroke (mm)
Gross Engine Power Output
BMEP
Piston Speed
Compression Ratio
Engine Speed
Overspeed Limit
Oil Capacity
Battery
Isuzu / BU-4JJ1T
EPA Interim Tier 4 Certified
Electric
4-cycle, water cooled,
direct injection, turbocharged
183.0 in3 (2999 cc)
4
95.4 x 104.9
67.1 bhp (50 kW)
136 psi (940 kPa)
1237 ft./min. (6.29 m/s)
17.5:1
1800 rpm
2100 rpm
3.96 gallons (15 liters)
12V 72Ah x 1
Fuel System
Recommended Fuel
Maximum Fuel Flow (per hour)
Maximum Inlet Restriction (Hg)
Fuel Tank Capacity
Fuel Consumption
At full load
At 3/4 load
At 1/2 load
At 1/4 load
233 cfm (6.6 m3/min)
896°F (480°C)
53.2 in. H2O (13.3 kPa)
3Ø 240 Volt
3Ø 480 Volt
Main Line Circuit Breaker Rating
Over Current Relay Trip Set Point
480V Mode Only
Maximum Amps
100 Amps (4 wire)
108A x 2 (Zigzag)
50 Amps (4 wire)
108A (Zigzag)
108 Amps
54 Amps
125 Amps
54 Amps
WARRANTY*
Isuzu Engine
12 months from date of purchase with unlimited hours or 24 months
from date of purchase with 2000 hours (whichever comes first).
Generator
24 months from date of purchase or 2000 hours (whichever occurs first).
Trailer
12 months excluding normal wear items.
*Refer to the express written, one-year limited warranty sheet for additional information.
ASTM-D975-No.1 & No.2-D
16 gallons (61 liters)
5.9 in. (150 mm)
79.2 gallons (300 liters)
gph
lph
2.7
10.4
2.1
8.0
1.5
5.6
0.9
3.4
NOTICE
Generator is not intended for use in enclosed areas or where free
flow of air is restricted.
Backfeed to a utility system can cause electrocution, shock and/
or property damage. DO NOT connect to any building’s electrical
system except through an approved device.
Specifications are subject to change without notice.
DCA45USI — MQ POWER SERIES GENERATOR — REV. #12 (01/12/15)
DCA45USI
MQ POWER Series Generator
MQ POWER DECIBEL LEVELS
Our soundproof housing
allows substantially
lower operating noise
levels than competitive
designs. WhisperWatts
are at home on
construction sites, in
residential
neighborhoods, and at
hospitals — just about
anywhere.
90
Subway / truck traffic
80
Average city traffic
70
Inside car at 60 mph
60
Air conditioner at 20 feet
Ultra-Silent at 23 feet
Normal conversation
50
GENERATOR OUTPUT PANEL
CIRCUIT BREAKERS
FOR GFCI RECEPTACLES
CIRCUIT BREAKERS
FOR CS-6369 TWIST
LOCK RECEPTACLES
58.0
LS
DECIBE
ULTRA-SILENT FEATURES
„„Low Noise Muffler — Large capacity low noise muffler
minimizes exhaust sound.
„„Soundproof Casing — The new design divides the cabinet
into three sections, separating the engine, muffler and radiator
for more efficient cooling and reduces noise from the engine
and fans.
„„New Cooling System — An advanced design uses two
separate air intake systems to cool the generator. The engine
fan draws air in to cool the engine and generator housing while
a second electric fan directly cools the radiator. With less air
being drawn into the generator through each fan, considerably
less noise is produced through the top of the generator.
„„ Environmental Design — Constructed using an integrated
environmental skid and fuel tank. This design fully contains
fuel leakage and any liquid that might leak from the engine
such as lube oil or radiator coolant. All potentially hazardous
liquids are contained without contaminating the surrounding
area.
Electric Fan
Radiator
Diesel
engine
GFCI RECEPTACLES (2)
120V, 20 AMP
CS-6369 TWIST-LOCK
RECEPTACLES (3)
240/120V, 50 AMPS
OPTIONAL GENERATOR FEATURES
„„Battery Charger — provides fully automatic and selfadjusting charging to the generator's battery system.
„„Jacket Water Heater — for easy starting in cold weather
climates.
„„Special Batteries — long life batteries provide extra engine
cranking power.
„„Low Coolant Level Shutdown — provides protection
from critically low coolant levels. Includes control panel
warning light.
„„Spring Isolaters — provides extra vibration protection for
standby applications.
„„Trailer Mounted Package — meets National Highway
Traffic Safety Administration (NHTSA) regulations. Trailer is
equipped with electric or surge-hydraulic brakes with double
or triple axle configuration.
OPTIONAL CONTROL FEATURES
Control
box
„„Emergency Stop Switch — when manually activated shuts
Outside air
down generator in the event of an emergency.
„„Audible alarm — alerts operator of abnormal conditions.
Outside Air
OPTIONAL OUTPUT CONNECTIONS
„„Cam-Lok Connectors — provides quick disconnect
alternative to bolt-on connectors.
AC generator
Flow of Cooling Air
„„Pin and Sleeve Connectors — provides industry standard
connectors for all voltage requirements.
„„Output Cable — available in any custom length and size
configuration.
DCA45USI — MQ POWER SERIES GENERATOR — REV. #12 (01/12/15)
DCA45USI
MQ POWER Series Generator
DIMENSIONS
Weight
Dry Weight
Wet Weight
Max. Lifting
Point Capacity
2,888 lbs. (1,310 kg)
3,499 lbs. (1,587 kg)
6,960 lbs. (3,157 kg)
Generator can be placed on
an MQ Power Model TRLR70
Tandem Axle Trailer
Manufactured by Denyo Co.
Your Multiquip dealer is:
© COPYRIGHT 2015 MULTIQUIP INC.
DCA45USI2 Rev. #12 (01/12/15)
MULTIQUIP
POST OFFICE BOX 6254
CARSON, CA 90749
310-537-3700 • 800-883-2551
FAX: 310-604-3831
E-MAIL: sales@multiquip.com
WEBSITE: www.multiquip.com
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