Spark-ignited generator set

GM8.1 series engine

115 kW -150 kW standby

Description Features
Cummins Power Generation commercial generator sets GM heavy-duty gas engine - Rugged 4-cycle
are fully integrated power generation systems providing industrial spark-ignited delivers reliable power. The
optimum performance, reliability and versatility for electronic air/fuel ratio control provides optimum engine
stationary standby power applications. performance and fast response to load changes.
Alternator - Several alternator sizes offer selectable
This generator set is designed in facilities motor starting capability with low reactance 2/3 pitch
certified to ISO 9001 and manufactured in windings, low waveform distortion with non-linear loads
facilities certified to ISO 9001 or ISO 9002.
and fault clearing short-circuit capability.
The Prototype Test Support (PTS) program ®
Control system - The PowerCommand electronic
verifies the performance integrity of the
generator set design. Cummins Power control is standard equipment and provides total genset
Generation products bearing the PTS symbol system integration including automatic remote
meet the prototype test requirements of NFPA starting/stopping, precise frequency and voltage
110 for Level 1 systems. regulation, alarm and status message display,
™
AmpSentry protection, output metering, auto-shutdown
All low voltage models are CSA certified to at fault detection and NFPA 110 Level 1 compliance.
product class 4215-01.
Cooling system - Standard cooling package provides
reliable running at up to 50 °C (122 °F) ambient
The generator set is available Listed to UL temperature.
2200, Stationary Engine Generator
Assemblies. The PowerCommand control is
Enclosures - Optional weather protective and sound
Listed to UL 508 - Category NITW7 for U.S. attenuated enclosures are available.
and Canadian usage. NFPA - The genset accepts full rated load in a single
step in accordance with NFPA 110 for Level 1 systems.
Warranty and service - Backed by a comprehensive
warranty and worldwide distributor network.

Natural gas Propane

Standby rating Prime rating Standby rating Prime rating Data sheets
60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz 60 Hz 50 Hz
Model kW (kVA) kW (kVA) kW (kVA) kW (kVA) kW (kVA) kW (kVA) kW (kVA) kW (kVA) 60 Hz 50 Hz
GGLA 125 (156) 115 (144) D-3388
GGLB 150 (188) 140 (175) D-3389

©2008|Cummins Power Generation Inc.|All rights reserved|Specifications subject to change without notice|Cummins Power Generation
and Cummins are registered trademarks of Cummins Inc. PowerCommand, AmpSentry InPower and “Our energy working for you.” are
trademarks of Cummins Power Generation. Other company, product or service names may be trademarks or service marks of others.
S-1590 (4/08)
Generator set specifications
Governor regulation class ISO 8528 Part 1 Class G3
Voltage regulation, no load to full load ± 1.0%
Random voltage variation ± 1.0%
Frequency regulation Isochronous
Random frequency variation ± 0.5%
Radio frequency emissions compliance IEC 801.2 through IEC 801.5

Engine specifications
Design GGLA: Turbocharged, GGLB: Turbocharged and CAC
Bore 108.0 mm (4.25 in)
Stroke 111.0 mm (4.37 in)
3
Displacement 8.1 L (496.0 in )
Cylinder block Cast iron, V 8 cylinder
Battery capacity 300 amps minimum at ambient temperature of 0 °C (32 °F)
Battery charging alternator 70 amps
Starting voltage 12 volt, negative ground
Lube oil filter type Single spin-on canister-combination full flow with bypass
Standard cooling system 50 °C (122 °F) ambient radiator cooling system

Alternator specifications
Design Brushless, 4 pole, drip proof, revolving field
Stator 2/3 pitch
Rotor Direct coupled by a flexible disc
Insulation system Class H per NEMA MG1-1.65
Standard temperature rise 150 ºC (302 °F) standby
Exciter type Permanent magnet generator (PMG)
Phase rotation A (U), B (V), C (W)
Alternator cooling Direct drive centrifugal blower
AC waveform total harmonic distortion < 5% total no load to full linear load, < 3% for any single harmonic
Telephone influence factor (TIF) < 50 per NEMA MG1-22.43
Telephone harmonic factor (THF) <3

Available voltages
Reconnectable Non-reconnectable
Three phase Single phase Three phase
• 120/208 • 139/240 • 220/380 • 120/240 • 347/600
• 240/416 • 277/480 • 120/240 delta
Note: Consult factory for other voltages.

Generator set options and accessories

Engine Fuel system Exhaust system Generator set
… 120 V 1500 W coolant heaters … Natural gas … Mounted residential grade … AC entrance box
… 240 V 1500 W coolant heaters … LP liquid withdrawal silencer (unhoused) … Battery
Alternator … LP vapor withdrawal … Exhaust flex (muffler to … Battery charger
… 105 °C (221 °F) rise alternator … Natural gas/LP vapor with … Enclosure: aluminum, steel,
customer connection) weather protective or sound
… 125 °C (257 °F) rise alternator automatic changeover
… Natural gas/LP liquid with attenuated
… 120/240 V, 100 W alternator … Export box packaging
anti-condensation heater automatic changeover
… UL 2200 Listed
… 12 lead, broad range extended … Main line circuit breakers
stack (full single phase output) … Remote annunciator panel
… Single phase (4-lead) … Spring isolators
… PMG excitation … 2 year standby warranty
… 5 year basic power warranty
… 5 year comprehensive
warranty

Note: Some options may not be available on all models - consult factory for availability.

Our energy working for you.™

www.cumminspower.com
©2008|Cummins Power Generation Inc.|All rights reserved|Specifications subject to change without notice|Cummins Power Generation
and Cummins are registered trademarks of Cummins Inc. PowerCommand, AmpSentry, InPower and “Our energy working for you.” are
trademarks of Cummins Power Generation. Other company, product or service names may be trademarks or service marks of others.
S-1590 (4/08)
Control system Engine Data
• DC voltage
PowerCommand (2100) control with AmpSentry • Lube oil pressure
protection • Coolant temperature
• Integrated generator set control system providing Other data
voltage regulation, backup engine protection and • Genset model data
operator interface functions. • Start attempts, starts, running hours
• Fault flashout for indication of fault conditions (from • kW hours (total and since reset)
engine module). • Fault history
• Inherent AmpSentry protection provides a full range of • Load profile
alternator protection functions that are matched to the • System data display (optional)
alternator provided.
• Standard PCCNet interface. NEMA 3R enclosure. Governing
• Prototype tested; UL, CSA and CE compliant. • Digital engine speed control for fixed isochronous
frequency regulation
AmpSentry AC protection
• Over current and short-circuit shutdown Voltage regulation
• Over current warning • Integrated digital electronic voltage regulator
• Single and three phase fault regulation • Three phase line-to-neutral sensing
• Over and under voltage shutdown • PMG (optional)
• Over and under frequency shutdown • Single and three phase fault regulation
• Overload warning with alarm contact • Configurable torque matching
• Reverse power and reverse Var shutdown
• Excitation fault Control functions
• Data logging on faults
Engine protection • Fault simulation (requires InPower™)
• Overspeed shutdown • Time delay start and cooldown
• Low oil pressure warning and shutdown • Cycle cranking
• High coolant temperature warning and shutdown • PCCNet interface
• Low coolant level warning or shutdown • (3) configurable customer inputs
• Low coolant temperature warning • (4) configurable customer outputs
• High and low battery voltage warning • (8) configurable network inputs and (16) outputs (with
• Weak battery warning optional network)
• Fail to start (overcrank) shutdown
• Fail to crank shutdown Options
• Redundant start disconnect … Analog AC meter display
• Sensor failure indication … Thermostatically controlled space heater
• Fixed speed control … Key-type mode switch
… Ground fault module
Operator interface
• Off/manual/auto mode switch … Engine oil temperature
• Manual run/stop switch … Auxiliary relays (3)
® ®
• Panel lamp test switch … Echelon LONWORKS interface
• Emergency stop switch … Digital input and output module(s) (loose)
• Alpha-numeric display with pushbutton access, for … Remote annunciator (loose)
viewing engine and alternator data and providing setup,
controls and adjustments including voltage adjustment
• LED lamps indicating genset running, not in auto,
common warning, common shutdown
• (5) configurable LED lamps
• LED Bargraph AC data display (optional)
Alternator data
• Line-to-line and line-to-neutral AC volts
• Three phase AC current
• Frequency
• Total and individual phase kW and kVA
PowerCommand 2100 control
operator/display panel

Our energy working for you.™

www.cumminspower.com
©2008|Cummins Power Generation Inc.|All rights reserved|Specifications subject to change without notice|Cummins Power Generation
and Cummins are registered trademarks of Cummins Inc. PowerCommand, AmpSentry, InPower and “Our energy working for you.” are
trademarks of Cummins Power Generation. Other company, product or service names may be trademarks or service marks of others.
S-1590 (4/08)
Ratings definitions
Emergency standby power (ESP):
Applicable for supplying power to varying electrical load
for the duration of power interruption of a reliable utility
source. Emergency Standby Power (ESP) is in
accordance with ISO 8528. Fuel Stop power in
accordance with ISO 3046, AS 2789, DIN 6271 and BS
5514.
Limited-time running power (LTP):
Applicable for supplying power to a constant electrical
load for limited hours. Limited Time Running Power (LTP)
is in accordance with ISO 8528.
Prime power (PRP):
Applicable for supplying power to varying electrical load
for unlimited hours. Prime Power (PRP) is in accordance
with ISO 8528. Ten percent overload capability is
available in accordance with ISO 3046, AS 2789, DIN
6271 and BS 5514.
Base load (continuous) power (COP):
Applicable for supplying power continuously to a This outline drawing is for reference only. See respective model
constant electrical load for unlimited hours. Continuous data sheet for specific model outline drawing number.
Power (COP) in accordance with ISO 8528, ISO 3046, AS
2789, DIN 6271 and BS 5514. Do not use for installation design

Dim “A” Dim “B” Dim “C” Set Weight* Set Weight*
Model mm (in.) mm (in.) mm (in.) dry kg (lbs) wet kg (lbs)
GGLA 2496 (98.2) 1016 (40.0) 1422 (56.0) 1157 (2550) 1213 (2675)
GGLB 2496 (98.2) 1016 (40.0) 1422 (56.0) 1157 (2550) 1213 (2675)
* Weights represent a set with standard features. See outline drawings for weights of other configurations.

Cummins Power Generation

rd
1400 73 Avenue N.E.
Minneapolis, MN 55432 USA
Telephone: 763 574 5000
Fax: 763 574 5298

Warning: Back feed to a utility system can cause electrocution and/or property damage. Do not connect to any building’s electrical system
except through an approved device or after building main switch is open.

Our energy working for you.™

www.cumminspower.com
©2008|Cummins Power Generation Inc.|All rights reserved|Specifications subject to change without notice|Cummins Power Generation
and Cummins are registered trademarks of Cummins Inc. PowerCommand, AmpSentry, InPower and “Our energy working for you.” are
trademarks of Cummins Power Generation. Other company, product or service names may be trademarks or service marks of others.
S-1590 (4/08)