Basler Electric BE1-81O/U - Manual (Page 48)

42 9137300990 Rev N
Current-operated targets require a minimum trip-circuit current of 200 milliamperes and have a continuous
rating of 3 amperes, a two-minute rating of 7 amperes, and a one-second rating of 30 amperes.
Internally-operated targets should be selected if the relay has normally-closed output contacts.
Frequency Setpoint
Range ................................................................... 40 to 70 Hz
Increment ............................................................. 0.01 Hz
Accuracy...............................................................
±0.01 Hz of the setpoint setting
Time Delay
Setting Range
Cycles (of applied frequency)............................... 3 to 99 cycles in 1 cycle increments
10 to 990 cycles in 10 cycle increments
100 to 9,900 cycles in 100 cycle increments
Seconds ............................................................... 0.1 to 9.9 seconds in 0.1 second increments
1.0 to 99 seconds in 1 second increments
10 to 990 seconds in 10 second increments
Accuracy
Cycles ................................................................... +2 cycles or
–1 cycle for 0.02 Hz to 1 Hz frequency
variation from setpoint setting
±1 cycle for frequency variation greater than 1 Hz from
setpoint setting
Seconds ...............................................................
±2% of the setting or ±50 ms, whichever is greater for
0.02 Hz to 1 Hz frequency variation from setpoint
setting
±2% of the setting or ±25 ms, whichever is greater for
frequency variation greater than 1 Hz from
setpoint setting
Undervoltage Inhibit
Setting Range ...................................................... 40 to 120 Vac
Accuracy...............................................................
±5% of the setting at 25°C for nominal frequency input
Type Tests
Dielectric Strength
Meets IEC 60255-5 and exceeds IEEE C37.90 one-minute dielectric tests as follows:
All circuits to ground ............................................. 2,828 Vdc
Input to output circuits .......................................... 2,000 Vac or 2,828 Vdc
Surge Withstand Capability
Qualified to IEEE C37.90.1-1989
Fast Transient
Qualified to IEEE C37.90.1-1989
Impulse
Qualified to IEC 60255-5
Radio Frequency Interference
Maintains proper operation when tested in accordance with IEEE C37.90-1989.
Specifications BE1-81O/U