Ratings Plugs; Current Sensors - GE Power Break II Manual

Power+™ Trip Units
Rating Plugs
Power+™ trip u n it rating plug
A new interchangeable rating plug i s used in the Power+™
tri p unit across the entire Power Break® I I breaker product
l ine. Rating plugs are the key devices that establish the cur­
rent rating of the breaker. They provide an essential sca ling
function for the unit's microprocessor, and ensure m aximum
accuracy. They a lso provide an externa l jack for connection
to an externa l battery pack, or TVRMSZ test kit .
Rating plugs have rejection features that a l low them t o b e
inserted only with breakers containing the correct current
sensors. Rating plugs for the Power+ tri p unit cannot be used
with Spectra RMSTM molded case circuit breakers or with
MicroVersaTrip Plus™ and MicroVersaTrip PM™ trip units. See
Table 13.1 below.
Table 13.1
Rating Plug And Current Sensor Rating
Envelope Frame Sensor
Size Max Rating
Rating (Amps) (S)
(Amps)
2000 800 200
800.1600
800
400
1600
1000
1600
2000 2000
3000 2500 1000
2000
2500
3000 3000
4000 4000 4000
S= Sensor amp rating X= Rating plug a m p
Sensor Rating
Plug Amps (X)
100, 150 , 200
200,225,250,300,400
400. 450. 500. 600, 700, 800
600. 800. 1000
800, 1000, 1 100, 1200, 1600
1000, 1200. 1500, 1600, 2000
600. 800. 1000
1000, 1200. 1500, 1600, 2000
1600, 2000, 2500
2000, 2500, 3000
1600, 2000, 2500, 3000, 3600, 4000

Current Sensors

Typical toroidally wound sensor
Toroidally wound current sensors are furnished for all major
protective functions, and for use with Power+™ and Micro­
VersaTrip PM tri p units. Current sensors are factory installed
and are not changea ble in the field. There are 11 current
ratings for the Power Break I I breaker l ine through 4000
a m ps. See Table 13.1 for current ratings. Rating plugs must
be coordinated with the current sensor rating (S) listed on the
face of the rating plug.
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