9190600990 Rev F
BE1-50BF General Information
1-3
Figure 1-2. Style Number Identification Chart
SPECIFICATIONS
The BE1-50BF Breaker Failure Relay has the following features and capabilities.
Current Sensing
Maximum burden of 1 VA per phase at range maximum, 50/60 Hz. Operable over a frequency range of
40 to 70 Hz. Maximum continuous current: 5 A for sensing range of 0.25 to 2.0 A; 10 A for sensing range
of 1.0 to 8.0 A. Maximum one second current: 300 A.
For ratings other than one second, the rating may be calculated as follows:
t
K
I
=
where t = the time in seconds, and K = 90,000.
Dropout
Above 98% of actual pickup level.
Current Detector Reset
Less than 1 millisecond.
Summary of Contents for BE1-50BF
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