GE EntelliGuard G - Standard and Optional Features; Short Time Rating (1;2 Sec); Short Circuit;High Interruption Rating; Thermal Performance

DET-653C EntelliGuard
®
G Circuit Breaker Application Guide
24-May-12 Section 2. Features and Characteristics
©2012 General Electric All Rights Reserved
5
STANDARD AND OPTIONAL FEATURES
Short Time Rating (1/2 Sec)
42KA, 50KA, 65KA (Env 1); 85KA (Env 2), 100KA (Env 3)
Short Circuit/High Interruption Rating
65K - 150KA @ 508V and below, 65K - 100KA @ 635V
Thermal Performance
ANSI C37 and UL 489 designs are 100% rated up to 40ºC when
applied in recommended enclosure sizes. IEC 60947 versions are
100% rated in free air up to 50ºC. IP31 enclosure/switchboard
rating is based on size, recommended up to 50ºC ambient with
rear vertical bus connection (Table 2.1).
Reverse Feed
EntelliGuard G devices can be fed from top or bottom terminals.
Two-Step Stored Energy Mechanism
EntelliGuard G operates via stored energy mechanisms that can
be manually charged (MO) or electrically charged (EO) by the
Spring Charging Motor. Closing time is less than five cycles.
Closing and opening can be initiated remotely or via the front
cover push buttons. An Open-Close-Open cycle is possible
without recharging. (Charge after close). The breaker operating
mechanism is a trip-free mechanism and is furnished with an
integrated anti-pumping system.
Field Installable Trip Units and Accessories
EntelliGuard G devices have provisions for four accessory
operating coils. The four positions can be filled by the following
four devices: one Close Coil (CC) or one Command Close Coil (CCC),
one Shunt Trip Coil (ST), one Under Voltage Release (UVR), and the
fourth position can either be a 2nd ST Coil or a UVR. The Shunt
Trip and the UVR can also be replaced with a 120V Network
Interlock Device. The closing coil is a “one-shot” electronic closed
circuit. Shunt trip (ST) coils are continuous rated. (Note: No Red
Indicating Light on Shunt Trip) Under voltage relays (UVR) are
available with a fixed time delay (3 Cycles at down to 50% system
voltage; 1.2 Cycles below 50% system voltage). The time delay
module (TDM) is available as a shipped loose accessory for
remote installation (in equipment). Optional Coil Signaling contact
modules for the CC, CCC, ST, UVR, and NI's provide coil status
(energize/de-energize) via the secondary disconnects or trip unit
through Modbus or Profibus Comm.
Table 2.1 Enclosure Requirements
Minimum
Specified Cubicle
Space (inches)
Minimum Specified Cubicle Ventilation - No of
Vent Slots (a)
Frame Size
No. of Poles
W
H
D
Top Wall
Bottom Wall
Rear Wall
1200A (Env 1)
3P
20
16.4
16.5
12
16
-
2000A (Env 1)
3P
20
16.4
16.5
12
16
-
2000A (Env 1)
4P
22
16.4
16.5
12
16
-
3000A/3200A (Env 2)
3P
22
21
16.5
16
16
8
3000A/3200A (Env 2)
4P
25
21
16.5
20
16
8
6000A (Env 3)
3P
32
30
16.5
24
20
20
6000A (Env 3)
4P
41
30
16.5
30
24
20