Briggs & Stratton 50A NEMA 3R User Manual
Installation &
Operator’s Manual
Guide d'Installation
et d'Utilisation
Manual de Instalación
y del Operario
Questions? Help is just a moment away!
Preguntas? La ayuda es justa un momento
lejos!
Vous avez des questions? Vous n'avez pas
besoin d'aller loin pour trouver de l'aide!
Call: Home Generator Helpline
Llamada: Línea Directa de Generador de Hogar
Appelez: Ligne Directe de Génératrice la
Maison - 1-800-743-4115 M-F 8-5 CT
Web: www.homegeneratorsystems.com
Models 071004 & 071005 Part No. 198581GS Rev.- (03/30/06)
5500AA NNEEMMAA 11 // NNEEMMAA 33RR
MMaannuuaall TTrraannssffeerr SSwwiittcchh
TABLE OF CONTENTS
2
TABLE OF CONTENTS
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
For the Home Owner: . . . . . . . . . . . . . . . . . . . . . . . . 4
For the Installing Dealer/Contractor: . . . . . . . . . . . . . 4
Owner Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installer Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . 5
Equipment Description. . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Delivery Inspection . . . . . . . . . . . . . . . . . . . . . . . . 6
Shipment Contents . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ESSENTIAL CIRCUIT ISOLATION . . . . . . . . . . . . . . . . . . 7
Power Wiring Interconnections . . . . . . . . . . . . . . . . . . 8
SYSTEM OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Model 071004 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Model 071005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
When Calling The Factory . . . . . . . . . . . . . . . . . . . . . . 9
SERVICE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Copyright © 2006 Briggs & Stratton Power Products Group, LLC. All rights reserved. No part of this material may be
reproduced or transmitted in any form by any means without the express written permission of Briggs & Stratton Power
Products Group, LLC.
IMPORTANT SAFETY INSTRUCTIONS
3
IMPORTANT SAFETY
INSTRUCTIONS
This is the safety alert symbol. It is used to
alert you to potential personal injury
hazards. Obey all safety messages that follow
this symbol to avoid possible injury or death.
The safety alert symbol ( ) is used with a signal word
(DANGER, CAUTION,WARNING), a pictorial and/or a
safety message to alert you to hazards. DANGER indicates
a hazard which, if not avoided, will result in death or
serious injury. WARNING indicates a hazard which, if not
avoided, could result in death or serious injury.
CAUTION indicates a hazard which, if not avoided, might
result in minor or moderate injury. CAUTION, when
used without the alert symbol, indicates a situation that
could result in equipment damage. Follow safety messages
to avoid or reduce the risk of injury or death.
The manufacturer cannot possibly anticipate every possible
circumstance that might involve a hazard.The warnings in
this manual, and the tags and decals affixed to the unit are,
therefore, not all-inclusive. If you use a procedure, work
method or operating technique that the manufacturer does
not specifically recommend, you must satisfy yourself that it
is safe for you and others.You must also make sure that the
procedure, work method or operating technique that you
choose does not render the transfer switch unsafe.
SAVE THESE INSTRUCTIONS
• DO NOT touch bare wires or receptacles.
• DO NOT use transfer switch with worn, frayed, bare or
otherwise damaged wiring.
• DO NOT handle electrical cords while standing in water,
while barefoot, or while hands or feet are wet.
• If you must work around a unit while it is operating, stand on
an insulated dry surface to reduce shock hazard.
• DO NOT allow unqualified persons or children to operate or
service transfer switch.
• In case of an accident caused by electrical shock, immediately
shut down the source of electrical power and contact local
authorities. Avoid direct contact with the victim.
Failure to properly ground transfer switch can
result in electrocution.
WARNING
• Use transfer switch only for intended uses.
• If you have questions about intended use, ask dealer or
contact Briggs and Stratton Power Products.
• DO NOT expose transfer switch to excessive moisture, dust,
dirt, or corrosive vapors.
• Remain alert at all times while working on this equipment.
NEVER work on the equipment when you are physically or
mentally fatigued.
• If connected devices overheat,turn them off and turn off their
circuit breaker/fuse.
Improper treatment of transfer switch can damage it
and shorten its life.
CAUTION
• Despite the safe design of the transfer switch, operating this
equipment imprudently, neglecting its maintenance or being
careless can cause possible injury or death.
Transfer Switch contains high voltage that can
cause personal injury or death.
WARNING
• Licensed electrician must perform installation of transfer
switch.
• Follow all applicable federal,state and local codes, standards
and regulations.
Contact with live parts can cause electric shock
or burn.
WARNING
INTRODUCTION
4
INTRODUCTION
Thank you for your purchase of this Briggs & Stratton
Manual Transfer Switch.This product is intended for use
with Briggs & Stratton Home Generator Systems ONLY.
This is for use with optional home standby systems which
provide an alternate source of electric power and to serve
loads such as a gas furnace, refrigeration and
communication systems that, when stopped during any
power outage, could cause discomfort, or the like.This
product DOES NOT qualify for emergency standby as
defined by NFPA 70 (NEC).
IMPORTANT: DO NOT use with generator’s protected
by Ground Fault Circuit Interruptors.
Briggs and Stratton Power Products (BSPP) has made every
effort to provide for a safe, streamlined and cost-effective
installation. Each installation is unique, it is impossible to
know of and advise of all conceivable procedures and
methods by which installation might be achieved.We do
not know all possible hazards and/or the results of each
method or procedure. For these reasons,
Only licensed electricians
should install transfer switches.
Installations must strictly comply with all
applicable federal, state and local codes,
standards and regulations.
Your BSPP Transfer Switch is supplied with this combined
“Installation and Operator’s Manual”.This is an important
document and should be retained by the owner after the
installation has been completed.
Every effort has been expended to make sure that the
information in this manual is both accurate and current.
However, the manufacturer reserves the right to change,
alter or otherwise improve the system at any time without
prior notice.
For the Home Owner
To help you make informed choices and communicate
effectively with your installation contractor(s),
Read and understand the
Owner Orientation Section of this manual
BEFORE
contracting or starting
your transfer switch installation.
To arrange for proper installation, contact the store at
which you purchased your BSPP Transfer Switch, your
dealer, or your utility power provider.
The Transfer Switch Warranty is V
OID
unless the system is installed by a
licensed electrical professional.
For the Installing Dealer/Contractor
Check federal, state and local codes for questions on
installation.
If you need more information about the transfer switch,
call 1-800-743-4115, between 8:00 AM and 5:00 PM CT.
INTRODUCTION
5
Owner Orientation
The illustrations are for typical circumstances and are
meant to familiarize you with the installation options
available with your transfer switch.
Local codes, appearance, and distances are the factors that
must be considered when negotiating with an installation
professional.As the distance from the existing electrical
service increases, compensation in wiring materials must be
allowed for.This is necessary to comply with local codes
and overcome electrical voltage drops.
The factors mentioned above will have a direct effect
on the overall price of your transfer switch installation.
NOTE:Your installer must check local codes AND obtain
permits before installing the system.
• Read and follow the instructions given in this manual.
• Follow a regular schedule in caring for and using your
transfer switch, as specified in the manual.
Installer Responsibilities
• Read and observe the safety rules.
• Read and follow the instructions given in this manual.
• Check federal, state and local codes, standards and
regulations.
• Ensure generator is not overloaded with selected loads.
Equipment Description
These transfer switches are intended to operate
compatible electrical loads of normal residential
installations.The load is connected either to utility power
(normal) or home standby power (generator).
These manual transfer switches are equipped with two
circuit breakers (“GENERATOR SUPPLY” and “UTILITY
SUPPLY”) and a mechanical interlock.The “GENERATOR
SUPPLY” circuit breaker provides power from the
generator to the load devices wired to the manual transfer
switch.The “UTILITY SUPPLY” circuit breaker provides
utility power from the distribution panel to the load
devices wired to the manual transfer switch.
The mechanical interlock allows the circuit breakers for
either the generator power “GENERATOR SUPPLY” or the
utility power “UTILITY SUPPLY” to be turned on to
provide power to the selected house loads.These manual
transfer switches will not allow utility line power and
generator power to be connected to a load device at the
same time.
If utility line power is restored while generator power is
being used, there will be no affect on the generator or
transfer switch components.When utility power is
restored, follow the instructions in the section “System
Operation”.
INSTALLATION
6
INSTALLATION
Unpacking
Delivery Inspection
After removing the carton, carefully inspect the transfer
switch components for any damage that may have occurred
during shipment.
IMPORTANT: If loss or damage is noted at time of
delivery, have the person(s) making delivery note all damage
on the freight bill and affix his signature under the
consignor's memo of loss or damage. If loss or damage is
noted after delivery, contact the carrier for claim
procedures. Freight damaged parts are not warranted.
Shipment Contents
• Manual Power Transfer Switch
• Installation and Operator’s Manual
Mounting Guidelines
The Model 071004 Manual Transfer Switch is enclosed in a
NEMA Type 1 enclosure suitable for indoor use only.
The Model 071005 Manual Transfer Switch is enclosed in a
NEMA Type 3R enclosure suitable for indoor/outdoor use.
Guidelines for mounting the Manual Transfer Switch
include:
• Model 071005 Manual Transfer Switch must be installed
with minimum NEMA 3R hardware for conduit
connections.
• Install switch on a firm, sturdy supporting structure.
• To assure easy insertion or removal of circuit breakers,
level and plumb enclosure.This can be done by placing
washers between switch enclosure and mounting surface.
• NEVER install switch where any corrosive substance
might drip onto enclosure.
• Protect switch at all times against excessive moisture,
dust, dirt, lint, construction grit and corrosive vapors.
The typical installation of the Manual Power Transfer Switch
is depicted in Figure 1. Discuss layout suggestions/changes
with the owner before beginning the system installation
process.
Manual
Transfer Switch
Main
Distribution
Panel
Figure 1 — Typical Switch Mounting
Model 071004 shown
INSTALLATION
7
ESSENTIAL CIRCUIT
ISOLATION
Essential electrical loads are loads that will be powered by
the Home Generator System. Essential loads are grouped
together and wired into the transfer switch.
TO THE INSTALLER: Consult with Home
Generator System owner(s) to discuss their
“Selection of Essential Circuits”, described in
operator’s manual.
Ensure that the total of the selected load circuits fed by this
transfer switch are within the generator's rated capacity.
The following requirements apply to this type of isolation
system:
• The Manual Transfer Switch is installed after the main
distribution panel.
• The Manual Transfer Switch has a load rating of 50 Amps.
This is the maximum load rating of the essential loads.
All wiring must conform to national, state and local codes.
The illustration in Figure 2 depicts the Home Generator
System and assumes the utility is supplying 120/240 Volt,
single-phase electrical service.
Figure 2 — Typical System Diagram with Essential Circuits
To Utility Power
Watt Meter
Main Distribution Panel
To Air Conditioner (240V)
To Other Circuits (120V)
To Range
To Water Heater
240V
To Briggs & Stratton
Standby Generator
120V To Microwave
120 V To Bathroom
240V To Well Pump
120V To Sump Pump
120V
To Furnace Blower
To Lights
To Refrigerator
120V To Freezer
Manual Transfer Switch
(in utility position)
Neutral
Utility Supply
Generator Supply
Equipment Ground Bus
INSTALLATION
8
Figure 3 — A Typical Installation Diagram for Transfer Switch
Main Distribution Panel
Ground Bus
Neutral
Bus
To Generator
Generator
Connection
Utility
Connection
Neutral
Bus
Power Wiring Interconnections
All wiring must be the proper size, properly supported, of
approved insulation qualities,and protected by NEC
approved conduit.
Complete the following connections between the
generator, transfer switch and main distribution panel
(Figure 3).
1. Connect utility power supply leads from two pole
breaker installed in main distribution panel to transfer
switch two pole breaker marked “UTILITY SUPPLY”. A
50 Amp circuit breaker is provided. Ensure breaker is
turned OFF.
2. Connect main distribution panel ground to transfer
switch “GND” bus.
3. Connect main distribution panel neutral lead to
transfer switch “NEUTRAL” terminal.
4. Connect generator power supply leads from
generator’s control panel to transfer switch two pole
breaker marked “GENERATOR SUPPLY”.
5. Connect generator “GND” from control panel to
transfer switch “GND” terminal.
6. Connect generator Neutral from control panel to
transfer switch “NEUTRAL” terminal.
7. Tighten all wire connections/fasteners to proper
torque.
OPERATION AND SPECIFICATIONS
9
SYSTEM OPERATION
To transfer from utility power to generator power:
1. Turn OFF main breaker labeled “UTILITY SUPPLY”.
2. Turn OFF all branch circuit breakers in transfer switch.
3. Slide mechanical interlock and turn “GENERATOR
SUPPLY” breaker to ON position.
4. Turn ON branch circuit breakers one at a time.
To transfer from generator power back to utility
power:
1. Turn OFF main breaker labeled “GENERATOR
SUPPLY”.
2. Turn OFF all branch circuit breakers in transfer switch.
3. Slide mechanical interlock and turn “UTILITY SUPPLY”
breaker to ON position.
4. Turn ON branch circuit breakers one at a time.
Specifications
UL® 1008 Listed Transfer Switch
Model 071004
Enclosure. . . . . . . . . . . . . . . . . . . NEMA 1
Maximum Load/Circuit:
from Load Center . . . . . . . . . . 50 Amps
Rated AC Voltage. . . . . . . . . . . . . 250 Volts
Poles . . . . . . . . . . . . . . . . . . . . . . 2
Fault Current Rating . . . . . . . . . . 10,000 RMS Symmetrical
Amperes
Weight . . . . . . . . . . . . . . . . . . . . . 27 lbs.
Model 071005
Enclosure. . . . . . . . . . . . . . . . . . . NEMA 3R
Maximum Load/Circuit:
from Load Center . . . . . . . . . . 50 Amps
Rated AC Voltage. . . . . . . . . . . . . 250 Volts
Poles . . . . . . . . . . . . . . . . . . . . . . 2
Fault Current Rating . . . . . . . . . . 10,000 RMS Symmetrical
Amperes
Weight . . . . . . . . . . . . . . . . . . . . . 34 lbs.
When Calling the Factory
Before contacting Briggs and Stratton Power Products
regarding service or repair of this transfer switch, obtain
the Model Number from the unit data decal located on or
inside the case.
To contact Briggs and Stratton Power Products call
1-800-743-4115, between 8:00 AM and 5:00 PM CT.
Loading...