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IDENTIFICATION RECORD

DATA LABEL

Every generator set has a DATA LABEL that contains
important information pertinent to the generator. The
data label, which can be found attached to the gen-
erator’s lower connection box, lists the unit’s serial
number and its rated voltage, amps, wattage capacity,
phase, frequency, rpm, power factor, etc.

WAUKESHA, WI

RATED KW

RATED VOLTAGE

POWER FACTOR

ENGINE RPM

ALTERNATOR SUBTRANSIENT REACTANCE

ALTERNATOR TRANSIENT REACTANCE

CLASS

MODEL QT

MADE IN USA

PRODUCTION DATE

GENERAC POWER SYSTEMS, INC.

HERTZ

RATED KVA

GENERATOR SET DATA

RATED AMPS

ALT RPM

PHASE

SERIAL

ROTOR

STATOR WINDING INSULATION AT 25

C AMBIENT

NOTE:

For actual information related to this particular
model, please refer to the Manual Drawing Listing
located at the end of this manual, or to the data
label affixed to the unit.

Generator Model and Serial Number

This number is the key to numerous engineering and
manufacturing details pertaining to your unit. Always
supply this number when requesting service, order-
ing parts or seeking information.

Identification Code

Use this code to obtain important information about
the generator. For example, if the code is ...

SD 100-- A 1 6 5.0 D 18 HB Y N C

– identify the generator as follows:

• SD – Standby diesel generator (“SG” indicates a standby

gaseous fuel unit).

•  100 – Rated output is 100,000 watts (100 kW).
•  A – Voltage code (see “Voltage Codes” on this page).
•  1 – Indicates single-phase unit (3 – indicates three-phase

unit).

• 6 – Indicates unit rated 60 Hertz (Hz) (5 – indicates

50 Hz).

• 5.0 – Engine is 5.0 liter (304 cubic inches).
• D – Unit has diesel fuel system (“N” indicates natural

gas; “L” indicates LP Liquid Withdrawal; “V” indicates
LP Vapor Withdrawal).

• 18 – Alternator rpm rating (1,800 rpm); “36” indicates

3,600 rpm.

• H – Unit has an option “H” control panel.
• B – Indicates a brushless unit (“D” indicates a direct

excited unit with brushes and slip rings; “P” indicates a
permanent magnet excitation).

• Y – Unit is equipped with a standard enclosure (“N” indi-

cates no enclosure; “S” indicates unit has an acoustic
enclosure).

• N – Unit does not have an exhaust muffler (“Y” indicates

a muffler has been mounted; “L” indicates a muffler has
been shipped loose with the unit).

• Y – Unit has a main line circuit breaker (“C” indicates

unit has a UL-listed circuit breaker; “N” indicates no
circuit breaker has been mounted).

Groups and Assembly Numbers

The Data Label lists the groups and correspond-
ing assembly numbers for each unit. The assembly
numbers refer to exploded view drawing numbers
that are applicable to the specific generator model.
These drawings are located in the back half of this
manual.

Voltage Codes

The identification code letter following the unit’s kilo-
watt rating is the generator’s “voltage code.” Any one
of the following voltage codes may be listed.

A –

120/240 volts, single-phase, four-lead, 60 Hz

D –

120/240 volts, single- and three-phase, 12-lead, 60 Hz

G –

120/208 volts, three-phase, 12-lead, 60 Hz Broad Range

J –

120/240 volts, three-phase, 12-lead, 60 Hz Broad Range

K –

277/480 volts, three-phase, 12-lead, 60 Hz Broad Range

L –

346/600 volts, three-phase, six-lead, 60 Hz