GE Industrial Solutions Entellisys Low Voltage Switchgear - Manuel (Page 16)

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1. Primary disconnects
Fig. 3-9. Envelope 2 EntelliGuard E circuit breaker (rear view)
1. Racking handle
2. Breaker position indicator
Fig. 3-10. Racking handle for movement of EntelliGuard E
Movement of the breaker between the CONNECTED, TEST, and
DISCONNECTED positions is performed by the use of a racking
handle, see Fig 3.10, which engages the racking mechanism
mounted on the cassette. An optional remote racking device is
also available. Movement to the WITHDRAWN position is
manually performed after opening the compartment door. These
positions are illustrated and described more fully in Chapter 5 of
this instruction book.
CAUTION: The door should NOT be opened when the circuit
breaker is closed and in the CONNECTED position. Although the
breaker compartment door may be opened in any position, it is
recommended that the door only be opened when the breaker
is in the DISCONNECTED or WITHDRAWN position.
ATTENTION: Il ne faut pas que la porte soit ouverte lorsque le
disjoncteur est fermé et branché. Bien que la porte du
compartiment du disjoncteur puisse être ouverte lorsque le
disjoncteur est en n’importe quelle position, il est préférable
que la porte ne soit ouverte que lorsque le disjoncteur est en
position débranchée ou retirée.
3-6 Circuit Breakers
The General Electric EntelliGuard E Low Voltage Power Circuit
Breaker includes spring-operated, stored energy, close and trip
mechanisms for either manual or electrical operation.
Six General Electric EntelliGuard E Circuit Breakers form the
complete family of breakers used in the Entellisys switchgear.
Each type of breaker listed in table 3.2 describes the breaker
interrupting rating and the letter is the 5 th digit of the breaker
catalog number. These circuit breakers range from 400 to 3200
ampere frame size and are built with the following ratings and
characteristics:
EntelliGuard E Short Circuit and Interrupting Ratings: ANSI/UL1066
Interrupting Rating Tier ANSI/UL1066 Devices, LVPCB Envelope 1 Envelope 2
Type 254 V 508 V 635 V 1/2S Withstand 800, 1200 800, 1600,
2000
3200 800 to 3200
S 65,000 65,000 50,000 50,000 X
N 65,000 65,000 65,000 65,000 X X
H 85,000 85,000 65,000 65,000 X
P 100,000 100,000 65,000 65,000 X
E 85,000 85,000 85,000 85,000 X
M 100,000 100,000 100,000 85,000 X
Table 3-2. Breaker interrupting ratings
Fig. 3-11. EntelliGuard E Breaker
Envelope 1 EntelliGuard E Circuit Breaker
• 2000-ampere frame size
• Up to 100 kAIC interrupting rating
• Four-high stacking, 22-inch wide sections
Envelope 2 EntelliGuard E Circuit Breaker
• 2000-ampere frame size
• Up to 100 kAIC interrupting rating
• Four-high stacking, 22-inch wide sections
Envelope 2 EntelliGuard E Circuit Breaker
• 3200-ampere frame size
• Up to 100 kAIC interrupting rating
• Available in 30 inch wide sections
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