BE1-951
General Information
1-15
Power Supply
Option 1
48, 110, and 125 Vdc:
Range 35-150 Vdc
67, 110, and 120 Vac:
Range 55-135 Vac
Option 2
110, 125, and 250 Vdc:
Range 90-300 Vdc
110, 120, and 240 Vac:
Range 90-270 Vac
Option 3
24 Vdc:
Range 17-32 Vdc (down to 8 Vdc for
momentary dips.)
Burden
(Options 1, 2, and 3):
6 watts continuous, 8 watts maximum with all
outputs energized
Output Contacts
Make and Carry for Tripping Duty:
30 A for 0.2 seconds per IEEE C37.90;
7 A Continuous
Break Resistive or Inductive:
0.3 A at 125 or 250 Vdc (L/R = 0.04 maximum)
Control Inputs
Voltage Range:
Same as control power
Turn-On Voltage
48/125 Vac/Vdc Power Supply:
26 - 100 V
125/250 Vac/Vdc Power Supply:
69 - 200 V
24 Vdc Power Supply:
5 - 8 Vdc
*Above voltage ranges depend on Jumper configurations. See Section 3,
Input and Output
Functions, Contact Sensing Inputs.
Input Burden:
Burden per contact for sensing depends on the
power supply model and the input voltage.
Table 1-1 provides appropriate burden
specifications.
Table 1-1. Burden
Power
Supply
Jumper Installed
Burden
Jumper Not
Installed Burden
1 (48/125V)
13 k
$
25 k
$
2 (125/250V)
25 k
$
54 k
$
3 (24V)
7 k
$
N/A
Communication Ports
Interface
Front RS-232:
300 to 19200 baud, 8N1 full duplex
Rear RS-232:
300 to 19200 baud, 8N1 full duplex
Rear RS-485:
300 to 19200 baud, 8N1 half duplex
Response Time:
<100 msec for metering and control functions
Display
Type:
Two line, 16 character alphanumeric LCD (liquid
crystal display) with LED (light emitting diode)
back-light
Operating Temperature:
40
C (
40
F) to +70
C (+158
F)
Display contrast may be impaired at
temperatures below
20
C (
4
F)
