Auxiliary Contacts; Operation; Functional Tests & Adjustments; Manual Operation - Generac Power Systems RTSR600A3 Owner's Manual

2.7

AUXILIARY CONTACTS

If desired, there are Auxiliary Contacts on the transfer switch to
operate customer accessories, remote advisory lights, or remote
annunciator devices. A suitable power source must be connected to
the COMMON (C) terminal. See Figure 2.4.
Contact operation is shown in the following chart:
Common to Normally Open
Common to Normally Closed
Auxiliary Contacts are rated 10 amps at 125 or 250 volts AC. DO
NOT EXCEED THE RATED VOLTAGE AND CURRENT OF THE
CONTACTS.
Figure 2.4 – 400A Switch Auxiliary Contacts
Side views shown in Utility position
3.1 FUNCTIONAL TESTS AND
ADJUSTMENTS
Following transfer switch installation and intercon-
nection, inspect the entire installation carefully. A
competent, qualified electrician should inspect it. The
installation should comply strictly with all applicable
codes, standards, and regulations. When absolutely
certain the installation is proper and correct, com-
plete a functional test of the system.

Perform functional tests in the exact order pre-
sented in this manual, or damage to the switch
could be done.
Switch Position
Utility Standby
Open Closed
Closed Open
NOTE:
IMPORTANT: Before proceeding with functional tests, read and make
sure you understand all instructions and information in this section.
Also read the information and instructions of labels and decals affixed
to the switch. Note any options or accessories that might be installed
and review their operation.
3.2

MANUAL OPERATION


Do NOT manually transfer under load.
Disconnect transfer switch from all power
sources by approved means, such as a main
circuit breaker(s).
A manual HANDLE is shipped with the transfer switch. Manual opera-
tion must be checked BEFORE the transfer switch is operated electri-
cally. To check manual operation, proceed as follows:
1. Ensure the generator is in the OFF mode.
2. Turn OFF or OPEN both UTILITY and EMERGENCY power sup-
plies to the transfer switch, with whatever means provided (such
as the main line circuit breakers).
3. Note position of transfer mechanism main contacts by observing
display windows in "A" and "B" in Figure 3.1 as follows:
• Window "A" ON, Window "B" OFF - LOAD terminals (T1, T2)
are connected to utility terminals (N1, N2).
• Window "A" OFF, Window "B" ON - LOAD terminals (T1, T2)
are connected to emergency terminals (E1, E2).

Do not use excessive force when operating the
transfer switch manually or the manual handle
could be damaged.
3.2.1 CLOSE TO NORMAL SOURCE SIDE
Before proceeding, verify the position of the switch by observing
window "A" in Figure 3.1. If window "A" reads "ON", the contacts are
closed in the normal position, no further action is required. If it reads
"OFF", proceed with Step 1.
Step 1: With the handle attached to the actuating shaft, move handle
in the direction of the arrow on the switch cover until it stops —
DO NOT FORCE. Release handle slowly to allow the spring in
the switch box to relax. "ON" now appears in Window "A" and
"OFF" appears in Window "B".
3.2.2 CLOSE TO EMERGENCY SOURCE SIDE
Before proceeding, verify the position of the switch by observing
window "B" in Figure 3.1. If window "B" reads "ON", the contacts are
closed in the EMERGENCY (STANDBY) position. No further action is
required. If it reads "OFF", proceed with Step 1.
Step 1: With the handle attached to the actuating shaft, move the
handle in the direction of the arrow on the switch cover until
it stops - DO NOT FORCE. Release handle slowly to allow
the spring in the switch box to relax. "OFF" now appears in
Window "A" and "ON" appears in Window "B".

Operation

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