GE Industrial Solutions ProTrip Trip Units for Low-Voltage - Manual (Page 9)

ProTrip™ Trip Units
Chapter 1. Introduction
3
Characters Protective Function
08
Long-time, short-time, instantaneous, and
switchable ground fault
Table 6. Trip unit functions, as indicated by the eleventh and
twelfth characters of the Trip Unit catalog number.
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
PK050P3F1608R has the following functions:
PK050 – Trip Unit for AK-50 circuit breaker with a
frame rating of 1600 A
D – ProTrip Trip Unit
3 – 3-wire configuration
F – Fixed CT sensors
16 – 1600 A sensors
08 – Long-time, short-time, instantaneous, and
switchable ground fault protection functions
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 7. A rating plug is
shown in Figure 2.
Figure 2. ProTrip rating plug.
CAUTION: Removal of the rating plug while the breaker
is carrying current reduces the breaker’s current-carrying
capacity to approximately 25% of the current sensor
rating. This may result in undesired tripping.
ATTENTION: Si le calibreur est retiré alors que le
disjoncteur est sous tension, le déclencheur se régle
automatiquement à approximativement 25% du calibre
du transformateur de courant. Ceci peut entrainer un
déclenchement indésirable.
Cat. No.
Sensor
Rating, A
Plug Rating,
A
PT1C80GFD 80
PT1C100 GFD 150 100
PT1C125 GFD 125
PT1C150 GFD 150
PT225C150 GFD 225 150
PT225C225 GFD 225
PT4C200GFD 200
PT4C225GFD 225
PT4C250GFD 400 250
PT4C300GFD 300
PT4C400GFD 400
PT6C300GFD 300
PT6C400GFD 400
PT6C450GFD 600 450
PT6C500GFD 500
PT6C600GFD 600
PT8C400GFD 400
PT8C450GFD 450
PT8C500GFD 800 500
PT8C600GFD 600
PT8C700GFD 700
PT8C800GFD 800
PT16C800GFD 800
PT16C1000GFD 1000
PT16C1100GFD 1600 1100
PT16C1200GFD 1200
PT16C1600GFD 1600
PT20C1000GFD 1000
PT20C1200GFD 1200
PT20C1500GFD 2000 1500
PT20C1600GFD 1600
PT20C2000GFD 2000
PT30C1200GFD 1200
PT30C1600GFD 1600
PT30C2000GFD 3000 2000
PT30C2500GFD 2500
PT30C3000GFD 3000
PT32C1200GFD 1200
PT32C1600GFD 3200 1600
PT32C2400GFD 2400
PT32C3200GFD 3200
PT40C1600GFD 1600
PT40C2000GFD 2000
PT40C2500GFD 4000 2500
PT40C3000GFD 3000
PT40C3600GFD 3600
PT40C4000GFD 4000
Table 7. Catalog numbers for rating plugs.