Getting Started
Since this switch is available in a variety of configurations, please take a moment to compare the catalog number of your
purchased switch with the catalog number key below. Installation of an incorrect switch could result in misapplication, lack
of system coordination, or reduced system selectivity. If you have any questions, call the Customer Support Center at
800-843-3742.
Code
Function
S
Description
Power Break® II
Switch Family
S
Standard-Break
Frame Type
B
D
F
Back-connected
Draw-out
Front-connected
Connection Type
08
16
20
25
30
40
800 A
1600 A
2000 A
2500 A
3000 A
4000 A
Frame Rating
W2
W3
W4
up to 2000 A CTs
2500–3000 A CTs
4000 A CTs
EntelliGuard® - Switch Control
Unit
08
16
20
25
30
40
800 A
1600 A
2000 A
2500 A
3000 A
4000 A
Maximum CT Current Rating
Power Break® II insulated-case switch catalog numbering system.
Example – a switch with catalog number SSD20W220 has the following features:
•
Power Break® II (S)
•
Draw-out (D)
•
2000 A frame rating (20)
•
Control Unit with 2000 A CT (
W
2)
•
2000 A CT rating (20)
S
S
D
20
W2
20
