Siemens ETU776 - Trip Unit Installation and Ordering Information; Trip Unit Installation Guide; Ordering Trip Unit Systems and Type Labels

50 WL Circuit Breaker Selection and Application Guide
Breaker ready-to-close auxiliary contacts
Shunt trip
s
Undervoltage release (with or without time delay) or 2nd shunt trip
Breaker ready-to-close Breaker open/close auxiliary switches
1
b contact 2 a + 2 b 4 a + 4 b 4NO+4NC
None X
X B
X C
X D
X X H
X X I
Switch catalog number
Operation voltage
Status
AC DC contact
None X
24 A
48 B
120 125 C
240 250 D
24 X E
48 X F
120 125 X G
240 250 X H
Operation
voltage UVR UVR UVR 2nd shunt
AC DC without delay with delay status contact
1
trip
None X
24 X A
48 X B
120 125 X C
240 250 X D
48 X E
120 125 X F
240 250 X G
24 X H
48 X J
120 125 X K
240 250 X L
24 X X M
48 X X N
120 125 X X P
240 250 X X Q
48 X X R
125 X X S
120 250 X X T
WL Power Circuit Switch
UL 1066 Listed Non-automatic Catalog Number
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1
Status contact only available when communication is not installed. Signal is sent via communication in lieu of status contact.
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