BE1-46N General Information
1-3
SPECIFICATIONS
Current Sensing
(5 Ampere CT)
5 amperes nominal (50/60 hertz) current transformers; 10 amperes
continuous current, 250 amperes one second current, 2 VA burden
maximum per phase, frequency range 45 to 55 hertz for 50 hertz
systems and 55 to 65 hertz for 60 hertz systems.
(1 Ampere CT)
1 ampere nominal (60 hertz) current transformers; 2 ampere continuous
current, 50 ampere one second current, 2 VA burden maximum per
phase, frequency range 60 ±5 hertz.
Power Supply
Power for the internal circuitry may be derived from ac or dc external
power sources.
Type
Nominal Input
Voltage
Input Voltage
Range
Burden at Nominal
(Maximum)
O (Mid Range)
48 Vdc
24 to 150 Vdc
5.5 W
P (Mid Range)
125 Vdc
120 Vac
24 to 150 Vdc
90 to 132 Vac
6.0 W
16.0 VA
R (Low Range)
24 Vdc
12† to 32 Vdc
5.5 W
S (Mid Range)
48 Vdc
125 Vdc
24 to 150 Vdc
24 to 150 Vdc
5.5 W
6.0 W
T (High Range)
250 Vdc
240 Vac
62 to 280 Vdc
90 to 270 Vac
7.0 W
16.0 VA
† Type R power supply initially requires 14 Vdc to begin operating. Once operating, the voltage may
be reduced to 12 Vdc and operation will continue.
Output Circuits
Output contacts are rated as follows:
Resistive:
120/240 Vac
Make 30 amperes for 0.2 seconds, carry 7 amperes continuously, and
break 7 amperes.
250 Vdc
Make 30 amperes for 0.2 seconds, carry 7 amperes continuously, and
break 0.3 ampere.
Inductive:
120/240 Vac,
Make 30 amperes for 0.2 seconds, carry 7 amperes continuously,
125/250 Vdc
and break 0.3 ampere. (L/R = 0.04).
Oscillograph Start
0.5 ampere at 48 Vdc.
Target Indicators
Targets may be specified as either internally operated, or current operated
by a minimum of 0.2 ampere through the output trip circuit. When current
operated, the output circuit must be limited to 30 amperes for 0.2 seconds,
7 amperes for 2 minutes, and 3 amperes continuously.
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