GE Industrial Solutions WavePro - Manuel (Page 8)

Power+™ Trip Units
Chapter 1. Introduction
2
1–4 Trip Unit Catalog Numbers
A simple catalog-numbering system defines all of the
standard and optional Trip Unit functions. A complete
catalog numbering key is found inside the front cover.
Each of the segments of the catalog number is described
below.
The first character indicates the breaker type for which
the Trip Unit is configured, as listed in Table 1.
Character Breaker Type
J WavePro
Table 1. Breaker type referred to by the first character of the Trip Unit
catalog number.
The second character of the catalog number indicates the
breaker frame rating, as listed in Table 2.
Character Breaker Frame
8 800 A
1 1600 A
2 2000 A
3 3200 A
4 4000 A
Table 2. Breaker frame rating, given by the second character of the
Trip Unit catalog number.
The third and fourth characters of the catalog number
indicate the CT that is actually installed in the circuit
breaker, as listed in Table 3.
Characters Installed CT
01 150 A
04 400 A
08 800 A
16 1600 A
20 2000 A
32 3200 A
40 4000 A
Table 3. Installed CT, as indicated by the third and fourth characters of
the Trip Unit catalog number.
Following the code numbers for installed CT, letters are
appended to the catalog number to indicate installed
protective functions as listed in Table 4. These suffixes are
appended from left to right in the order given.
Suffix Protective Function
L Long-time overcurrent
S Short-time overcurrent
I Instantaneous overcurrent
Table 4. Trip unit catalog number suffixes for installed protective
functions.
Following the protective function letters is a two-character
code indicating the type of target module installed (if
any), as listed in Table 5.
Suffix Target Module Cat. No.
(none) TARGET00 (blank)
T1 TARGET01 (w/o GF)
T2 TARGET02 (with GF)
Table 5. Trip Unit catalog number code indicating the Target Module
installed.
Finally, if the Trip Unit was ordered as a replacement, the
letter “R” is appended to the catalog number.
For example, a Trip Unit with catalog number
J332LSIT1R has the following functions:
J3 – Trip Unit for WavePro breaker with a frame rating
of 3200 A
32 – Installed current sensor (CT) of 3200 A
L – Long-time overcurrent protection
S – Short-time overcurrent protection
I – Instantaneous overcurrent protection.
T1 – Target module without ground-fault trip indication
R – Trip Unit was ordered as a replacement
1–5 Rating Plugs
Interchangeable rating plugs are used to establish or
change the trip rating of the breaker. A built-in rejection
feature prevents the insertion of a rating plug with an
incorrect sensor rating into a Trip Unit. Rating plug
catalog numbers are listed in Table 6. A rating plug is
shown in Figure 2.