Siemens ETU776 - Ground-Fault Protection Modules; Ground-Fault Module Installation and Removal; Ground-Fault Protection Module Types and Capabilities

45WL Circuit Breaker Selection and Application Guide
WL Power Circuit Breaker
UL 1066 Listed Catalog Number
Breaker catalog number
Maximum continuous Frame size Frame size
current rating (A) 2 3
200 X A
225 X B
250 X C
300 X D
315 X E
350 X F
400 X G
450 X H
500 X J
600 X K
630 X L
700 X M
800 X X N
1000 X X P
1200 X X Q
1250 X X R
1600 X X T
2000 X X U
2500 X X V
3000 X X W
3200 X X Y
4000 X Z
5000 X 1
Rating plug
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Electronic trip units (ETU)
Trip unit Protective function LCD display Ground fault module
type L S I alpha num. Alarm Trip
ETU745 X (X) (X) C
ETU745 X (X) (X) X D
ETU745 X (X) (X) X E
ETU745 X (X) (X) X X F
ETU745 X (X) (X) X X G
ETU745 X (X) (X) X X X H
ETU748 X X J
ETU748 X X X K
ETU748 X X X L
ETU748 X X X X N
ETU748 X X X X P
ETU748 X X X X X Q
ETU776 X (X) (X) V
ETU776 X (X) (X) X W
ETU776 X (X) (X) X X Y
( ) Function can be disabled by user.
Courtesy of NationalSwitchgear.com