DET-653C
EntelliGuard
®
G Circuit Breaker Application Guide
24-May-12
Table of Contents
©2012 General Electric All Rights Reserved
SECTION 5 – CATALOG NUMBERING GUIDE
EntelliGuard G ANSI/UL489 Circuit Breaker Catalog Number Guide ....................................................................................... 60
EntelliGuard G Cassette Catalog Number Guide ................................................................................................................................ 68
EntelliGuard TU Trip Unit for EntelliGuard G Breaker ....................................................................................................................... 70
EntelliGuard TU Trip Unit Rating Plugs ..................................................................................................................................................... 72
SECTION 6 – APPLICATION DATA
Introduction .......................................................................................................................................................................................................... 73
Key Features .......................................................................................................................................................................................................... 73
UL1066 Low Voltage Power Circuit Breakers ............................................................................................................................. 73
UL498 Stored Energy Insulated Case Circuit Breakers .......................................................................................................... 73
IEC rated Circuit Breakers for IEC Equipment and Applications ....................................................................................... 73
All Types .......................................................................................................................................................................................................... 73
Ratings and Sizes ................................................................................................................................................................................................ 73
Short Circuit Interrupting Ratings ............................................................................................................................................................... 74
Figure 6.1. Short Circuit Rating Adjustment Equation ............................................................................................................ 74
Table 6.1. First Half-Cycle Peak at Specific Fault X/R Ratios ............................................................................................... 74
Withstand Ratings, Selective Adjustable-, RELT- and Override-Instantaneous Protection ......................................... 74
Close and Latch Ratings and Making Current Release (MCR) Instantaneous Trip............................................................ 75
Table 6.2. EntelliGuard G Circuit Breaker Close and Latch Ratings, UL489 Listed .................................................. 75
Table 6.3. EntelliGuard G Circuit Breaker Close and Latch Ratings, UL1066 Listed................................................ 75
Table 6.4. EntelliGuard G Non-Automatic Switch Close, Latch, and Withstand Ratings, UL489 Listed ....... 76
Operations .............................................................................................................................................................................................................. 76
Table 6.5. Operational Ratings, UL489 Circuit Breakers ........................................................................................................ 76
Table 6.6. Operational Ratings, UL1066/ANSI Circuit Breakers ......................................................................................... 76
Selecting a Circuit Breaker for an Application ..................................................................................................................................... 76
Cable or Bus Size – Factor A .......................................................................................................................................................................... 76
Ambient Temperature – Factor B ............................................................................................................................................................... 77
Table 6.7. Ambient Temperature Rating – Factor B ................................................................................................................. 77
Operating Frequency – Factor C ................................................................................................................................................................. 77
Altitude – Factor D .............................................................................................................................................................................................. 77
Table 6.8. Altitude Rating – Factor D................................................................................................................................................ 77
Load Class Rating – Factor E ......................................................................................................................................................................... 77
Table 6.9. Load class Rating – Factor E .......................................................................................................................................... 78
Safety – Factor F .................................................................................................................................................................................................. 78
Other Factors that Influence Circuit Breaker Sizing 100% vs. 80% Ratings ........................................................................ 78
Table 6.10. Circuit Breaker and Trip Parameters ...................................................................................................................... 78
SECTION 7 – PHYSICAL DATA
Dimensional Drawings ..................................................................................................................................................................................... 79
Figure 7.1. Sample Dimensional Drawing: ANSI UL 489, 3Pole, Drawout, 2000A, Type E, M ............................. 79
Dimensional Drawing Index .......................................................................................................................................................................... 80
Table 7.1. Dimensional Drawing Index ........................................................................................................................................... 80
Dimensions .......................................................................................................................................................................................................... 81
Table 7.2. 3-Pole, UL/ANSI ..................................................................................................................................................................... 81
Table 7.3. 4-Pole, UL/ANSI ..................................................................................................................................................................... 81
SECTION 8 – STANDARDS AND REFERENCES.................................................................................................................................................................... 82
Publications .......................................................................................................................................................................................................... 85
