IB01602002E
Page 4
Effective 10/02
Positions 1-2 Position 3 Position 4 Positions 5-6
Switching Device
Configuration Orientation Control Panel Switching Device
Closed Transition Automatic
Transfer Switch CT Vertical V ATC-800 I SPB Systems Power Breaker SP
Position 7 Position 8 Positions 9-12 Position 13 Position 14 Position 15
Switching Device Number Ampere Voltage/ Enclosure
Arrangement of Poles Rating Frequency Type Listing
Fixed Mount Insulated Case A Two 2 0600 120VAC/60Hz A No Enclosure K UL Listed U
Switches both Power Sources 0800 208VAC/60Hz B Type 1 S
Three 3 1000 600VAC/60Hz E Type 3R R
Fixed Mount Insulated Case B 1200 220VAC/50 or 60Hz G Type 4* L
Breakers both Power Sources Four 4 1600 380VAC/50Hz H Type 4X* D
2000 600VAC/50Hz K Type 12* J
Fixed Mount Insutated Case C 2500 230VAC/50Hz M
Breaker Normal Power Source, 3000 401VAC/50Hz N
Insulated Case Switch 4000 415VAC/50Hz O
Emergency Power Source 240VAC/60Hz W
480VAC/60Hz X
Fixed Mount Insulated Case D 365VAC/50Hz Z
Switch Normal Power Source,
Insulated Case Breaker
Emergency Power Source
Table 1.2 Transfer Switch Catalog Number Explanation
1.3 TRANSFER SWITCH CATALOG NUMBER
IDENTIFICATION
Transfer switch equipment catalog numbers provide a
significant amount of relevant information that pertains
to a particular piece of equipment. The catalog number
identification table (Table 1.2) provides the required
interpretation information for both closed and open tran-
sition switches. An example for an open transition
switch is offered initially to simplify the process.
Example: Catalog number (circled numbers correspond
to position headings in Table 1.2). The catalog number
ATVISPA31000XSU describes an open transition auto-
matic transfer switch with the switching devices mount-
ed vertically in the enclosure. The intelligence repre-
sented by the ATC-600 is a microprocessor-based logic
package. The System Power Breaker (SPB) is used as
the switching device and is a 3-pole insulated case
switch for each source. The continuous current rating of
this equipment is 1000 amperes and applicable at 480
VAC, 60Hz. The transfer switch equipment is enclosed
in a NEMA 1 enclosure and is UL listed.
➀
to
➁➂ ➃ ➄
to
➅➆ ➇ ➈
to
➉
AT V I SP A 3 1000 X S U
12 13
14
15
* Available only on units rated 600 through 1200A without Option 17C
Positions 1-2 Position 3 Position 4 Positions 5-6
Switching Device
Configuration Orientation Control Panel Switching Device
Automatic Transfer Switch AT Vertical V ATC-600 I SPB Systems Power Breaker SP
Non-Automatic Transfer Switch NT Vertical V ATC-600 I
(Electrically Operated)
Basic Transfer Switch PP Vertical V No Logic X
(Power Panel Only)
NOTE: Positions 7 through 15 below apply to both Closed Transition and Open Transition Switch catalog numbers.
NOTE: Positions 1 through 6 below apply to Open Transition Switch catalog numbers only.
NOTE: Positions 1 through 6 below apply to Closed Transition Switch catalog numbers only.
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