IB01602078E
For more information visit: www.generac.com
Instruction Booklet
Effective: September 2011
Page
13
40-400A (480/600Vac) ATC-300+ 3-Postion
Contactor Based Transfer Switch
23L. 24 Hour, 7day, 365 Day Programmable Plant Exerciser
This plant exerciser has two channel electronic time
switches with 365-day, 7-day, 24-hour programming. Each
channel can be independently programmed and can provide
up to 400 events. The plant exerciser offers daily, weekly
or annual programming capability with up to 99 separate
holiday periods of any duration and priority. An LCD dis-
play indicates load status, time-of-day, weekday and date.
29G.
Auto/Manual Operation
This feature provides 2-position auto/manual selector
switch marked “Auto/Manual” which permits the selec-
tion of automatic or manual operation. Once the selector
switch is transferred to manual mode, manual transfer
between Normal (S1) Neutral and Emergency (S2) can be
achieved by operating 3-position selector switch marked
“Normal-OFF-Emergency”. White indication light is lit ON
and display on ATC-300+ controller shows “ATS NOT
IN AUTOMATIC” when the switch is in manual mode.
38.
Stainless Steel Logic Cover
38A.
Stainless Steel Cover for Device Panel
Provides an added level of security by providing a pad
lockable stainless steel cover for use with standard trans-
fer switch device panel. The cover is designed for NEMA
1, 3R, 4X, and 12 applications.
38B.
Stainless Steel Cover for Controller
Provides an added level of security by providing a pad
lockable stainless steel cover for use with standard trans-
fer switch logic controllers and/or associated device pan-
els. These covers function with Generac’s ATC series
logic controllers and device panels. The covers are
designed for NEMA 1, 3R, 4X, and 12 applications.
41.
Space Heater With Thermostat
This feature provides a space heater and non-adjustable
thermostat. External control power is not required.
41A.
Space Heater With Thermostat - 100 Watt
This feature provides a 100 watt (W) space heater with a
non-adjustable thermostat.
49B.
Sensing Isolation Transformer (Up to 600 VAC only)
This feature provides 3-phase, 4-wire for Source-1 and
Source-2 sensing input on ATC controller for a high resis-
tance grounded delta system.
51D1. 50kA CVX Surge Device
This feature gives protection for surge current capacity
rating 50kA, up to 480VAC by providing a low imped-
ance surge path to ground while supporting rated volt-
age. It provides LED indication.
51F1. 100kA CVX Surge Device
This feature gives protection for surge current capacity
rating 100kA, up to 480VAC by providing a low imped-
ance surge path to ground while supporting rated volt-
age. It provides LED indication.
3.6 Enclosure
The rugged steel ATS enclosure is supplied with three door
hinges, regardless of enclosure size. They ensure proper support
of the door and door mounted devices (Figure 9). The hinges
have removable hinge pins to facilitate door removal. Certain
procedures, such as switch mounting, are simplified with the
door removed. The doors are supplied as standard with pad-lock-
able latches.
Figure 9. Typical Type 1 Enclosure (Door Closed).
The door is used to mount a variety of lights, switches, and
push-buttons, depending upon the options required for a particu-
lar ATS. All lights and switches are mounted in the plastic door-
mounted panel.
