Section 2: General Information
Homelink Upgradeable Manual Transfer Switch Owner’s Manual
3
Section 2: General Information
Unpacking
Carefully unpack the transfer switch. Inspect closely for
any damage that might have occurred during shipment.
The purchaser must file with the carrier any claims for
loss or damage incurred while in transit.
Check that all packing material is completely removed
from the switch prior to installation.
Equipment Description
The transfer switch is used for transferring critical
electrical load from a UTILITY (NORMAL) power source
to a GENERATOR (STANDBY) power source. The
transfer switch prevents electrical feedback between two
different power sources (such as the UTILITY and
GENERATOR sources) and, for that reason, codes
require it in all standby electric system installations.
The transfer switch consists of a transfer mechanism, a
control switch, and indicator lights.
This UL listed transfer switch is for use in optional
standby systems only (NEC article 702).
Transfer Switch Mechanism
These switches (
) are used with a single-
phase system, when the single-phase NEUTRAL line is
to be connected to a neutral lug and is to be switched.
The switched neutral provides compatibility with GFCI
equipped generators.
Solderless, screw-type terminal lugs are standard.
The conductor size range is as follows:
This transfer switch is suitable for control of motors,
electric discharge lamps, tungsten filament and electric
heating equipment where the sum of motor full load
ampere ratings and the ampere ratings of other loads do
not exceed the ampere rating of the switch and the
tungsten load does not exceed 30 percent of the switch
rating.
A 50A rated switch is suitable for use on circuits capable
of delivering not more than 10,000 RMS symmetrical
amperes, 250 VAC maximum, when protected by a 50A
maximum circuit breaker (Siemens types QP or BQ) or
50A maximum circuit breaker (Square D Q2,
Westinghouse CA-CAH, General Electric TQ2 and
Siemens QJ2).
Figure 2-1. Typical 3-Pole Transfer Mechanism
Transfer Switch Data Decal
A data decal is permanently affixed to the transfer switch
enclosure. Use this transfer switch only with the specific
limits shown on the data decal and on other decals and
labels that may be affixed to the switch. This will prevent
damage to equipment and property.
When requesting information or ordering parts for this
equipment, make sure to include all information from the
data decal.
For future reference, record the Model and Serial
numbers in the space provided on the front cover of this
manual.
Transfer Switch Enclosure
The standard switch enclosure is a National Electrical
Manufacturer’s Association (NEMA) UL Type 1 indoor
enclosure.
Power Inlet Box (if equipped)
The Power Inlet Box (PIB) safely connects a portable
generator to the manual transfer switch.
Two types of enclosure are available:
•
Corrosion-resistant aluminum
•
Non-metallic resin
Switch
Rating
Wire Range
Conductor
Tightening
Torque
Lug
Temp.
Rating
50A
1/0 - 14
AWG
50
in-lbs
(5.6 Nm)
167°F (75°C)
A
Utility Lugs (N1, N2 & N3)
B
Generator Lugs (E1, E2 & E3)
C
Load Lugs (T1, T2 & T3)
000101
B
C
A
