Introduction
4
1.4 Front Panel Interface
Each SB Energy-Comm trip unit features a rating plug (purchased
separately), front panel keypad, liquid crystal display (LCD), and a
EIA-232 communications port for use with a PC or laptop. The trip
unit’s integral front panel keypad and LCD provide the user with
direct access to device data and settings. Through detailed
menus and graphical displays, the user may view and modify the
system configuration and communication parameters, as well as
protective and metering function settings. Both real-time and
accumulated data are available, in addition to current and voltage
waveforms. The user may also view information in the trip log
associated with the five most recent trips.
1.4.1 Keypad
The front panel provides the user with four keypad buttons for
easy touch-control interface which uses no switches or knobs for
making adjustments to this trip unit. The keypad buttons permit
navigation through the displays to allow the local programming of
settings and viewing of those settings.
The Up and Down arrow keys are used for scrolling
through a menu of choices displayed on the LCD. The Enter
key is used to select a choice or move between two selections.
The Escape key is used to exit from a given menu to the next
higher level.
Table 1.2 UL 489 Symmetrical RMS Amperes Interrupting Rating (kA)
Optional Ratings and Application Voltage Breaker Frame Size
1200A 2000A 3200A 5000A
Alternate A.I.R. (kA): Blue Label “SBA”
@ 240V AC 65 85 N/A N/A
@ 480V AC 65 65 N/A N/A
@ 600V AC 42 50 N/A N/A
Standard A.I.R. (kA): Black Label “SBS”
@ 240V AC 100 100 150 150
@ 480V AC 100 100 100 100
@ 600V AC 50 65 85 85
High A.I.R. (kA): Red Label “SBH”
@ 240V AC 200 200 200 200
@ 480V AC 150 150 150 150
@ 600V AC 100 100 100 100
Short Time Delay Rating (kA) t=0.5 sec. 25 35 50 65
Table 1.3 IEC 947-2 Rating–Standard SBS
Interrupting
Ratings
Symmetrical
RMS
Kiloamperes
50/60 Hz.
AC Voltage
Breaker Frame Size
1200A 2000A 3200A 5000A
415
I
cu
I
cs
I
cw
100
100
25
100
100
35
100
100
50
100kA
100kA
65kA
690
I
cu
I
cs
I
cw
65
65
25
65
65
35
65
65
50
65kA
65kA
65kA
To Next Page
Loading...
Need help?
General
