Install Manual
Table Of Contents
- Table of Contents
 - Section 1: Safety
 - Section 2: General Information
 - Section 3: Installation
 - Section 4: Operation
 - Section 5: Drawings and Diagrams
- Installation Drawing—100A SE & Non-SE/150-200A Non-SE
 - Installation Drawing—150/200A SE
 - Installation Drawing—Liquid Cooled Generator
 - Installation Drawing—Liquid-Cooled Generator
 - Installation Drawing—Air-Cooled Generator SE and Non-SE Rated ATS
 - Installation Drawing—Air-Cooled Generator SE and Non-SE Rated ATS
 
 
Installation
Automatic Transfer Switch Owner’s Manual 9
Section 3: Installation
Introduction to Installation
This equipment has been wired and tested at the factory.
Installing the switch includes the following procedures:
• Mounting the enclosure.
• Connecting power source and load leads.
• Connecting the generator start and sensing circuit.
• Connecting any auxiliary contact (if needed).
• Testing functions.
Mounting
Mounting  dimensions  for  the  transfer  switch  enclosure
are  in  this  manual.  Enclosures  are  typically  wall-
mounted. See Drawings and Diagrams.
This  transfer  switch  is  mounted  in  a  UL  type  3R
enclosure. It can be mounted outside or inside and should
be  based  on  the  layout  of  installation,  convenience  and
proximity to the utility supply and load center.
Install  the  transfer  switch  as  close  as  possible  to  the
electrical loads that are to be connected to it. Mount the
switch vertically to a rigid supporting structure. To prevent
switch distortion, level all  mounting points. If necessary,
use washers behind mounting holes to level the unit.
Open Enclosure
See Figure 3-1. First, remove outer cover (A):
1. Remove thumb screw (B).
2. Slide slot (C) over retention tab.
3. Lower  cover until  clear of top flange  (D), and pull
away from enclosure.
Remove inner panel (E):
NOTE:  Inner  Panel  only  available  in  models  that  are
Service Entrance Rated.
4. Loosen  nut  (F)  until  it  clears  t-slot  (H)  in  inner
panel.
5. Grasp  inner  panel  at  two  cutouts  (G—left  and
right).  Tilt  inner  panel  as  shown,  passing  nut
through t-slot.
6. Lower inner panel until clear of two retention slots
(J—left  and  right  sides),  and  pull  away  from
enclosure.
(000119)
DANGER
Equipment malfunction. Installing a dirty or damaged
transfer switch will cause equipment malfunction and 
will result in death or serious injury.










