Whelen 295HFSA7 User Manual

®

ENGINEERING COMPANY INC.

CAUTION

Loud siren noise can cause
hearing damage and/or loss.

Refer to OSHA Section 1910.95 prior
to putting ANY siren into service!

Wear

Protection!

ACTIVATION OF THIS
SIREN MAY DAMAGE
UNPROTECTED EARS!

51 Winthrop Road
Chester, Connecticut 06412-0684
Phone: [phone]
Fax: [phone]

Installation/Operating Guide:

Dual Siren Control Head & Amp

295HFSA7 Flush Mount

295HFSA8 Console Mount

Internet: www.whelen.com
Sales e-mail: [e-mail]
Canadian Sales e-mail: [e-mail]
Customer Service e-mail: [e-mail]

DANGER! Sirens produce extremely loud emergency warning tones! Exposure to these tones without

proper and adequate hearing protection, could cause ear damage and/or hearing loss! The Occupational Safety &
Health Administration (www.osha.gov) provides information necessary to determine safe exposure times in
Occupational Noise Exposure Section 1910.95. Until you have determined the safe exposure times for your
specific application, operators and anyone else in the immediate vicinity should be required to wear an approved
hearing protection device. FAILURE TO FOLLOW THIS RECOMMENDATION COULD CAUSE HEARING LOSS!

Safety First

This document provides all the necessary information to allow your Whelen product to be properly and safely installed.
Before beginning the installation and/or operation of your new product, the installation technician and operator must
read this manual completely. Important information is contained herein that could prevent serious injury or damage.

• Proper installation of this product requires the installer to have a good understanding of automotive electronics,
systems and procedures.

• Failure to use specified installation parts and/or hardware will void the product warranty!

• If mounting this product requires drilling holes, the installer MUST be sure that no vehicle components or other
vital parts could be damaged by the drilling process. Check both sides of the mounting surface before drilling
begins. Also de-burr any holes and remove any metal shards or remnants. Install grommets into all wire
passage holes.

• If this manual states that this product may be mounted with suction cups, magnets, tape or Velcro®, clean the
mounting surface with a 50/50 mix of isopropyl alcohol and water and dry thoroughly.

• Do not install this product or route any wires in the deployment area of your air bag. Equipment mounted or
located in the air bag deployment area will damage or reduce the effectiveness of the air bag, or become a
projectile that could cause serious personal injury or death. Refer to your vehicle owner’s manual for the air bag
deployment area. The User/Installer assumes full responsibility to determine proper mounting location, based
on providing ultimate safety to all passengers inside the vehicle.

• For this product to operate at optimum efficiency, a good electrical connection to chassis ground must be
made. The recommended procedure requires the product ground wire to be connected directly to the NEGATIVE
(-) battery post.

• If this product uses a remote device to activate or control this product, make sure this control is located in an
area that allows both the vehicle and the control to be operated safely in any driving condition. DO NOT
ATTEMPT TO ACTIVATE OR CONTROL THIS DEVICE IN A HAZARDOUS DRIVING SITUATION.

• It is recommended that these instructions be stored in a safe place and
referred to when performing maintenance and/or reinstallation of this
product.

• FAILURE TO FOLLOW THESE SAFETY PRECAUTIONS AND
INSTRUCTIONS COULD RESULT IN DAMAGE TO THE PRODUCT OR
VEHICLE AND/OR SERIOUS INJURY TO YOU AND YOUR PASSENGERS!

Automotive: Sirens/Switches

For warranty information regarding this product, visit www.whelen.com/warranty

©2004 Whelen Engineering Company Inc.
Form No.13946G (053012)

Page 1

Flush Mount

Siren Input Connector

P/N 46-0746511-00

Control Head / Flush Mount

P/N 01-0269919-00

Bail Strap Mount

Installation Kit

P/N 01-0463232-00

Mounting Bracket

P/N 07-241559-000

Control Head

Console Mount

P/N 01-0269199-01

Siren Input Connector

P/N 46-0746511-00

Flush Mount: The flush mount unit can be mounted in
a console or other location. Using the measurements
below, cut the hole for the control head, then slide the
unit in. Mark and drill the four mounting holes for the
customer supplied mounting hardware.

Important: Mounting will require drilling. It is absolutely necessary
to make sure that no vehicle components behind the mounting area
will be damaged. If damage is possible, Select another location.

Installation: There are two mounting styles for the
siren control head depending on the model purchased.

Bail Strap Mount: isTh unit uses a bail strap that can
be attached under the dash. Follow the diagram above for assembly
of the bracket. You will need to supply the screws that attach the
bracket to the vehicle.

Congratulations on selecting the 295HFSA7 / 295HFSA8 Siren! This product offers a unique and distinctive collection of features designed to allow the

5.5"

Mounting Screws (Qty. 4)

2.25"

SIDE VIEW

1.35”

1.875"
1-7/8”

CUT-OUT THIS AREACUT-OUT THIS AREA

For Flush Mounting OnlyFor Flush Mounting Only

IMPORTANT: Template not to scale.

user to customize the operation of this siren to suit their individual wants or needs.

• 8 Programmable operating profiles

• Switch or ignition activated panel
illumination.

• Stereo (dual) or mono sound control.

• 200 Watts of output power.

Installation: Control Head

• Removable microphone.

• “Siren In Use” output signal.

• Hands-Free operation.

• Radio Repeat.

• Simulated mechanical siren tones.

• Harmonically-rich, composite
Airhorn tones.

• Title 13-compliant profiles.

• Independent, non-destructive short
circuit protection.

Page 2

On

87654321

Main

Power

Connector

Dip

Switch

Bank

Input

Harness

Connector

Siren #1

Connector

Siren #2

Connector

Installation: Amplifier

1. Locate a suitable mounting location for the amplifier. The vertical wall
between the trunk and the passenger compartment is often a good
choice and is the method discussed in this manual.

2. Be sure that the amplifier fits properly and does not interfere with any
parts of the trunk lid or seat back.

3. Position the amplifier on the proposed mounting location. Using an
awl or other suitable tool, scribe the mounting surface where the
mounting holes are to be drilled.

CAUTION! As mounting the amplifier will require drilling, it is
absolutely necessary to make sure that no other vehicle components
could be damaged by the drilling process. If any vehicle component
could suffer any potential harm, select a different mounting location.

4. Carefully drill the mounting holes using a drill bit sized for a #10 sheet
metal screw.

5. Using the supplied #10 x 3/4” sheet metal screws, secure the remote
amplifier to the vertical trunk wall.

Wiring

Connecting to Power:

1. Using appropriately sized wire, extend the RED and BLACK wires
from the Main Power Connector, through the firewall and into the
engine compartment (refer to the Wire Gage Calculation Chart
located on the last page of this manual to determine the proper wire
size for your application).

2. Follow the factory wiring harness towards your vehicle’s battery.

WARNING! All customer supplied wires that connect to the positive
terminal of the battery must be sized to supply at least 125% of the
maximum operating current and FUSED
load. DO NOT USE CIRCUIT BREAKERS WITH THIS PRODUCT!

3. Install a user supplied 20A fuse block on the end of the RED wire.
Connect the fuse block to the battery using no more than 2 feet of
wire. Do not install the fuse into the fuse holder yet!

at the battery to carry that

4. Connect the BLACK wire directly to the NEGATIVE battery terminal.

Connecting to your Speaker(s):

1. Route the ORANGE, and BROWN wires from both Siren Connector
#1 and Siren Connector #2 along the factory wiring harness towards
your speakers.

2. Connect the ORANGE wire from Siren Connector #1 to the
POSITIVE (+) terminal on speaker #1. Connect the ORANGE wire
from Siren Connector #2 to the POSITIVE (+) terminal on speaker
#2.

3. Connect the BROWN wire from Siren Connector #1 to the
NEGATIVE (-) terminal on speaker #1. Connect the BROWN wire
from Siren Connector #2 to the NEGATIVE (-) terminal on speaker
#2.

Hands-Free Siren (optional):

Refer to the wiring diagram for all wiring information for this optional
connection.

Radio Rebroadcast (optional):

The two (2) BLUE wires are used to connect your two-way radio’s external
speaker for radio rebroadcast. This is an optional connection and will not
effect the other operations.

Note: Radio rebroadcast will NOT work with amplified remote
speakers! If your remote speaker is amplified (I.E.: contains a power
amp circuit in the speaker assembly), do not enable the radio
rebroadcast feature.

Installation will be complete after a 20A fuse has been installed in the Main
Power Connector fuse block. Now inspect the fuses at the back of the
amplifier and at the battery. If either of these fuses are blown, carefully
inspect all of the circuit wires and make sure they are wired correctly.
Replace the blown fuses with ones of an identical amp rating. If these
fuses blow after installation or activation, contact Whelen Engineering
Technical Support.

Page 3

VEHICLE

HORN

TO

HORN

RING

CUT

X

X

3 AMP

FUSE

20 AMP

FUSE

(+)

Battery

(-)

BRN

GRY

ORG

100 WATT

SPEAKER

100 WATT

SPEAKER

ORG

ORG

BRN

BRN

TWO-WAY

RADIO SPEAKER

(Non-Amplified)

YEL

GRN

BLU

WHT/GRN*

GRN*

*see “Horn Ring

Transfer Relay
Table” for wiring
information.

BLU

BLU

On

87654321

HF

MAN

MAN

VOL

AIRHORN

STDBY

RAD

WAIL

YELP

T3

FUNCTION

MONO

DUAL

OFF

®

Horn Ring

Transfer Relay

(See table for

wiring info)

To Vehicle

Car Horn

From Vehicle

Horn Relay

To +12VDC

(Fuse @ 3A)

To +12VDC

(Fuse @ 3A)

VIO

VIO

WHT/GRN = for POS switching

GRN = for NEG switching

WHT/GRN = for POS switching

GRN = for NEG switching

30

87A

85 86

87

To Vehicle

Car Horn

N.O.

N.C.

From Vehicle

Horn Relay

Customer Supplied Horn Ring

Transfer Relay Table

Generic

Style

Bosch

Style

™

VIO

WHT/BLK

BLK/WHT

WHT

VIO

CAUTION

Loud siren noise can cause
hearing damage and/or loss.

Refer to OSHA Section 1910.95 prior
to putting ANY siren into service!

Wear

Protection!

ACTIVATION OF THIS
SIREN MAY DAMAGE
UNPROTECTED EARS!

Wiring Diagram

Page 4

12 3

STD

RA

MONO

DUAL

OFF

HF

MAN

STDBY

RAD

WAIL

YELP

T3

FUNCTION

O

L

MAN

VOL

AIRHORN

Operating the Controls:

Power Switch (1)

This switch has three positions. Center (Off), Down (On/Mono) & Up (On/Stereo).
When this switch is Off, the unit will not function. When the switch is in either On
position, the siren is functional and may be activated at the operator’s discretion.

Rotary Knob (2)

The Rotary Knob controls the siren functions. There are 7 positions that may be
selected. Each position and its function is outlined under “Rotary Switch Operations”.

Volume Knob, Man Button and Horn Button (3)

The Volume Knob controls the volume of public address function. Volume is
increased by rotating the knob in a clockwise direction. Rotating the volume knob in a
counter-clockwise direction decreases volume. The volume knob has no effect on
any siren tones produced.

The Manual Button generates a variety of tones, depending on what position the
rotary knob is in. For further explanation of this button’s function, refer to “Rotary
Switch Operations.”

Holding the AIRHORN button on, generates an AIRHORN tone whenever the siren is
powered up.

Rotary Switch Operations:

Note: This section assumes the horn ring circuit has been wired as
shown on Page 4.

RAD (Radio Repeat) - When the rotary knob is in the RAD position, any

signal that is received by the vehicle’s two-way radio will be
simultaneously broadcast over the vehicle’s loudspeaker (unit must be
connected to the two-way radio as outlined in this manual).

With the Rotary Switch in the RAD Position:

• Activating the HORN RING will activate the VEHICLE HORN until the
HORN RING is released.

• Pressing the AIRHORN button will result in an AIRHORN tone until the
AIRHORN button is released.

• Pressing the MAN button results in the AIRHORN tone until the MAN
button is released.

STDBY (Manual Siren) - When the rotary switch is in this position the
siren is in a standby state where no tones have been activated, but is
waiting for another action to be taken by the operator. This position is often
the best choice when manual operation of the siren is desired.

With the Rotary Switch in the STDBY Position:

• Activating the HORN RING will produce a AIR HORN tone until the
HORN RING input is released.

• Pressing the AIRHORN button will result in the AIRHORN tone until the
AIRHORN button is released.

• Pressing the MAN button will result in the Manual Wail tone ramping up
to peak frequency and ramping down when the MAN button is released.

MAN (Manual Siren) - When the rotary switch is in this position the siren
is in a standby state where no tones have been activated, but is waiting for
another action to be taken by the operator. This position is used when
manual operation of the siren is desired.

With the Rotary Switch in the MAN Position:

• Activating the HORN RING will result in a Manual Wail tone ramping up
to the peak frequency and stopping when the HORN RING input is
released.

• Pressing the AIRHORN button produces an AIRHORN tone until the
AIRHORN button is released.

• Pressing the MAN button has the same effect as pressing the HORN
RING.

HF (Hands-Free Operation) - When the rotary knob is in the HF position,
the siren functions are placed in a standby mode. Siren tones are
activated by a single “tap” on the MAN button or on the vehicle’s steering
wheel horn ring (if the vehicle’s horn has been wired to the HORN RING
input). The first tap produces Wail. A second tap produces Yelp. A third tap
produces Tone 3. The next tap returns the siren to Wail and the cycle

repeats itself. Two quick successive taps will stop the siren (refer to the
tables on the following pages for hands-free tonal information).

With the Rotary Switch in the HF Position:

• Activating the HORN RING will result in the HF cycle as described
above.

• Pressing the AIRHORN button will result in the AIRHORN tone until the
AIRHORN button is released.

• Pressing the MAN button will result in the HF cycle as described above.

WAIL (Wail Tone) - When the rotary knob is in the WAIL position, a
steady, rise and fall wail tone is produced.

With the Rotary Switch in the WAIL Position:

• Activating the HORN RING will change the siren tone to the override
tone. Activating the HORN RING a second time returns it back to a
WAIL.

• Pressing the AIRHORN button will result in an AIRHORN tone until the
AIRHORN button is released.

• Pressing the MAN button will change the siren tone to the override tone.
Pressing the MAN button again returns it back to a WAIL.

YELP (Yelp Tone) - When the rotary knob is in the YELP position, a fast,
rise and fall tone is produced.

With the Rotary Switch in the YELP Position:

• Activating the HORN RING will change the siren tone to the override
tone. Activating the HORN RING a second time returns it back to a
YELP tone.

• Pressing the AIRHORN button will result in the AIRHORN tone until the
AIRHORN button is released.

• Pressing the MAN button will change the siren tone to the override tone.
Pressing the MAN button a second time returns it back to a YELP tone.

T3 (Piercer

TM

Tone (see dip switch tables)) - When the rotary knob is in

the T3 position, an extremely fast, rise and fall tone is produced.

With the Rotary Switch in the T3 Position:

• Activating the HORN RING will produce the override tone until the
HORN RING is released.

• Pressing the AIRHORN button will result in an AIRHORN tone until the
AIRHORN button is released.

• Pressing the MAN button will produce the override tone until the MAN
button is released.

Refer to the siren tables on the following pages for override tone
details.

MICROPHONE - Whenever the unit is powered on, activating the

microphone (pressing the switch on the side of the mic.) will shut down
any other siren functions & enable public address operation regardless of

the rotary switch position or any other switch or input.

Page 5

Profile 1 - T3 = Piercer™

With the power switch in “Mono” mode, Speakers1&2
produce Speaker #1 tones simultaneously.
In “Dual” mode, Speakers1&2operate as outlined in
the following tables.

*MECH = Simulated Mechanical Tone

Note:

Profile 4 - T3 = Hi/Low

Profile 2

Profile 3

Rotary
Switch

Rotary
Switch

MAN button

Speaker #1 / Speaker #2

MAN button

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

RAD

RAD

Radio / Radio

Radio / Radio

Radio / Radio

Radio / Radio

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

STDBY

STDBY

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

MAN / MAN (Coast to stop)

MAN / MAN (Coast to stop)

MAN / MAN (Coast to stop)

MECH / MECH (Coast to stop) AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

MAN

MAN

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

MAN / MAN (Stop)

MAN / MAN (Stop)

MAN / MAN (Stop)

MECH Coast to stop/ MECH ( ) MAN / MECH ( )Coast to stop

MAN / MAN (Stop)

MAN / MAN (Stop)

MAN / MAN (Stop)

HF

HF

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

WAIL / WAIL

WAIL / WAIL

WAIL / WAIL

WAIL / MECH WAIL / MECH

YELP / YELP

YELP / YELP

YELP / WAIL

YELP / MECH YELP / MECH

PIER / PIER

Hi Low Hi Low///

PIER/ YELP

PIER / MECH PIER / MECH

WAIL / WAIL

WAIL / WAIL

WAIL / WAIL

YELP / YELP

YELP / YELP

YELP / WAIL

PIER / PIER

Hi Low Hi Low///

PIER/ YELP

WAIL

WAIL

WAIL / WAIL

WAIL / WAIL

WAIL / WAIL

WAIL / MECH*

YELP / YELP

YELP / WAIL

YELP / WAIL

YELP / MECH YELP / MECH

YELP / YELP

YELP / WAIL

YELP / WAIL

YELP

YELP

YELP / YELP

YELP / YELP

YELP / WAIL

YELP / MECH

PIER / PIER

Hi Low/ / YELP

PIER/ YELP

PIER MECH/ PIER MECH/

PIER / PIER

Hi Low/ / YELP

PIER/ YELP

T3

T3

PIER / PIER

Hi Low // Hi/Low

PIER / YELP

PIER MECH/

AIRHORN / PIER

AIRHORN / Hi/Low

AIRHORN / PIER

AIRHORN / MECH AIRHORN / MECH

AIRHORN / PIER

AIRHORN / Hi/Low

AIRHORN / PIER

RAD

STDBY

MAN

HF

WAIL
YELP

T3

Rotary
Switch

MAN button

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

RAD

STDBY

MAN

HF

WAIL
YELP

T3

Rotary
Switch

MAN button

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

Dip Switch Pos:

#1 #3

OFF OFF OFF

#2

Dip Switch Pos:

#1 #3

ON ON OFF

#2

Dip Switch Pos:

#1 #3

ON OFF OFF

#2

Dip Switch Pos:

#1 #3

OFF ON OFF

#2

Page 6

*MECH = Simulated Mechanical Tone

Profile 5 - T3 = Title 13 (Y-249)**

Profile 6 - (Title 13 / Mechanical)

Profile 7

Profile 8

Rotary
Switch

MAN button

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

RAD Radio / Radio

Radio / Radio

Radio / Radio

Radio / Radio

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

STDBY STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

MAN / MAN (Coast to stop)

MECH / MECH (Coast to stop)

MAN / MAN (Coast to stop)

MECH / MECH (Stop)

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

AIRHORN / AIRHORN

MAN STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

MAN / MAN (Stop)

MAN / MECH (Stop)

MAN / MAN (Stop)

MECH / MECH (Coast to stop)

MAN / MECH (Stop)

MAN / MAN (Stop)

MECH / MECH (Coast to stop)

MAN / MAN (Stop)

HF STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

STDBY / STDBY

WAIL / WAIL

WAIL / MECH

Whoop / Whoop

MECH / MECH

WAIL / MECH

Whoop / Whoop

MECH / MECH

YELP / YELP

YELP / MECH

Warble / Warble

YELP / MECH

PIER / MECH PIER / MECH

YELP / MECH

Warble / Warble

YELP / MECH

WAIL / WAIL

YELP / YELP

WAIL WAIL / WAIL

WAIL / MECH*

Warble / Warble

MECH / MECH

YELP / WAIL

YELP / MECH

Whoop / Warble

WAIL / MECH

YELP / MECH

Whoop / Warble

WAIL / MECH

YELP / WAIL

YELP YELP / YELP

YELP / MECH

Whoop / Whoop

YELP / MECH

Y-249 / YELP

Y-249 / MECH

MECH / Whoop

PIER/ MECH

Y-249 / MECH

MECH / Whoop

PIER / MECH

Y-249 / YELP

** a tone designed for compliance

with California Title 13

T3 Y-249 Y-249/

Y-249 / MECH

MECH / MECH

PIER / MECH

YELP Y-249/

Y-249 / MECH

AIRHORN / MECH

AIRHORN / PIER

AIRHORN / AIRHORN

AIRHORN / MECH

AIRHORN / PIER

YELP Y-249/

RAD

STDBY

MAN

HF

WAIL
YELP

T3

Rotary
Switch

MAN button

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

RAD

STDBY

MAN

HF

WAIL
YELP

T3

Rotary
Switch

MAN button

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

RAD

STDBY

MAN

HF

WAIL
YELP

T3

Rotary
Switch

MAN button

Speaker #1 / Speaker #2

Operation

Speaker #1 / Speaker #2

Horn Ring

Speaker #1 / Speaker #2

Dip Switch Pos:

#1 #3

OFF OFF ON

#2

Dip Switch Pos:

#1 #3

ON OFF ON

#2

Dip Switch Pos:

#1 #3

OFF ON ON

#2

Dip Switch Pos:

#1 #3

ON ON ON

#2

Page 7

Current Draw (AMPS)

Wire Gauge

Calculation Chart

All Distances Shown Are In FeetINS. = Insufficient

5

22

6

3
INS.
INS. INS.

INS.
INS. INS.

INS.
INS.
INS. INS.
INS. INS.
INS. INS.
INS. INS.
INS. INS.
INS. INS.
INS. INS. INS.
INS. INS. INS.
INS. INS. INS.
INS. INS. INS.
INS. INS. INS.
INS. INS. INS.

INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.

INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.
INS.

20

9.5
5
3

18

15

7.5
5
4
3

16

24.5
12

8
6
5
4

3.5
3

14

39

19.5
13

9.5
8

6.5

5.5
5

4.5
4

3.5
3
3
3

12

62
31

20.5

15.5

12.5

10.5
9

7.5
7
6

5.5
5
5

4.5
4
4

3.5

3.5

3.5
3

10

98
49

32.5

24.5

19.5

16.5
14

12.5
11
10

9
8

7.5
7

6.5
6
6

5.5
5
5

8

156

78
52
39
31
26

22.5

19.5

17.5

15.5
14
13
12
11

10.5
10

9

8.5
8
8

6

248
124

82.5
62

49.5

41.5

35.5
31

27.5
25

22.5

20.5
19

17.5

16.5

15.5

14.5
14
13

12.5

4

395
197
131

98.5
79
66

56.5

49.5
44

39.5
36
33

30.5
28

26.5

24.5
23
22
21

19.5

2

629
314
209
157
125
104

89.5

78.5

69.5
63
57

52.5

48.5
45
42
39
37
35
33

31.5

10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100

Wire Gauge (AWG)

To use this chart...

1. Determine the amount of current being drawn through the wire. Locate this number in the vertical left-hand

column. If the current value is between adjacent values, use the higher number.

2. Follow this row until the length of the installed wire is shown. If the exact length is between adjacent values, use

the higher number. Follow this column upwards to find the recommended size (gage) for this wire.

In the example shown below, the size for a wire with an installed length of 36 feet, through which 22 amps of current

will be drawn, must be determined.

A row for 22 amps is not shown, so the row for 25 amps will be used. Follow this row to the right. A column for 36 feet

is not shown, so the column for 49.5 feet will be used. Following this column to the top will show that the size of this

wire must be at least 6 gage.

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