ABB Power Break II User Manual page 2

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.
S S D 20 W2 20
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 (W2)
• 2000 A CT rating (20)
Code
S
S
B
D
F
08
16
20
25
30
40
W2
W3
W4
08
16
20
25
30
40
Power Break® II insulated-case switch catalog numbering system.
Description
Power Break® II
Standard-Break
Back-connected
Draw-out
Front-connected
800 A
1600 A
2000 A
2500 A
3000 A
4000 A
up to 2000 A CTs
2500–3000 A CTs
4000 A CTs
800 A
1600 A
2000 A
2500 A
3000 A
4000 A
Function
Switch Family
Frame Type
Connection Type
Frame Rating
EntelliGuard® - Switch Control
Unit
Maximum CT Current Rating