CHAPTER 1: INTRODUCTION
FEATURES PER PRODUCT
UR FAMILY – COMMUNICATIONS GUIDE
1-3
1
B90
Undervoltage
# of
voltage
terminals
12
12
Basic UR
Features
Clock
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Control
pushbutt
ons
7
Display
propertie
s
1
Default
message
s
1
LED test
1
Setting
file
template
1
Security
1
Trip and
Alarm
LEDs
1
Flex state
paramet
ers
256
User
program
mable
self-tests
1
Installatio
n
1
Voltage
rail
monitor
1
Temperat
ure
monitor
1
Breaker
Arcing
Current (I2t)
# of
current
banks; 2
if current
banks < 2
6
6
4
3
2
2
6
4
2
2
2
2
4
2
6
6
Breaker
Control
# of
elements;
2 if
current
banks < 2
6
6
2
4
3
2
4
6
4
2
2
2
2
4
2
6
6
6
(Disconnect)
Breaker
Switch
# of
elements
24
24
8
24
12
8
16
24
16
8
8
8
8
24
8
24
24
24
Breaker
Failure
# of
elements;
2 if
current
banks < 2
6
6
4
3
4
4
2
2
2
4
2
6
Breaker
Flashover
# of
elements;
2 if
current
banks < 2
2
2
2
1
2
2
2
2
2
2
2
2
Feature
Rule
Max B30 B90 C30 C60 C70 D30 D60 F35 F60 G30 G60 L30 L60 L90 M60 N60 T35 T60
