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EntelliGuard* L

EntelliGuard*

The EntelliGuard is a line of Air Circuit Breakers developed as a
global product meeting IEC standards.
The L version of this breaker is a line of three and four pole devices
ranging from 400A to 4000A in two frame sizes with a fault
interruption ratings of 50 and 65kA.
The design offer a unique combination of high fault current
withstand ratings, short fault interruption times and selectivity.

The device includes a new state-of-the-art highly accurate trip
unit that enables the circuit breaker to reliably protect itself and
it’s environment.

These Power Circuit Breakers are designed to allow multiple Features and benefits
interruptions of fault currents and can be used in AC networks
with voltages up to 690V.

Selective and fast EntelliGuard GT Electronic Trip Unit
10000 Time Current Curve
2h Breaker In =2500A
EntelliGuard has been designed to offer an uncompromising Ir =2160A
combination of a high speed interruption at high fault levels. LT - Device
The circuit breaker is designed to remain closed on a fault as per 1000 1 ST - Device
I - Device
user settable time value when the fault level lies within the range HSIOC -Device Intro
of short time delay option, and for 15 milliseconds when the fault
level attains instantaneous protection range value.
This instantaneous device includes programming that in normal 100
circumstances waits until the downstream breaker trips. A

Uncompromising ... Reliability 10
B
EntelliGuard* has been designed as a modern ‘Power Circuit
Breaker’ without neglecting its GE’s heritage of more than
50 years in building Air Circuit Breakers. 1 2
The result: a device with a proven electrical and mechanical C
life span independent of its operation mode. Be it manual,
electrical or by means of the installed shunt and/or undervoltage 0,1 3 4
releases. Tripping Time In Seconds (s) D

Hi-Performance: complete line 0,01 The depicted curves only indicate the Full Clearing time
1000 10000 100000
All power circuit breakers are designed to allow multiple Current in Amps E
interruptions of fault currents. Here the tested and certified ]
service breaking capacity value is in all cases equal to the stated 1. Overload protection (LT) with 22 bands
2. Timed short-circuit protection (STD) with 17 bands
ultimate breaking capacity. 3. Selective instantaneous protection (I)
4. Hi-Speed trip (HSIOC) X
Hi-Performance: current ratings
in enclosures

EntelliGuard* Air Circuit Breakers have been designed with low
power dissipation values and allow relatively high currents at high
ambient temperatures.

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