Frequency setting range: 39.00 to 70. 00 Hz in step of .1Hz
Operating voltage range
: 33 to 135 V the relay is block
below this limit
No of tripped stage
: 2 for UFT -21
3 for UFT -31
4 for UFT- 41
Reference frequency: 4 MHZ
Accuracy
: + .03 Hz
Reset Ratio
: 100%
Timer Range
: .05 to 7.35 Sec. for under & over
Frequency stage.
Burden:
Aux Supply from PT
: 1.5 VA
:
Aux Supply from external source: 1.5 VA max at 150 V
Aux DC (without tripping relays): 11 W for 4 stages
Contacts in relay
: 3 pair of N/O contact make & carry
7500 VA for 0. 25 with maxima of
30 A & 300 VAC or DC Carry contentiously 5 A AC/DC. Break 1250 VA AC/50 W DC resistive, 25 W L/R
= 0. 04 S. Subject to maxima of 5A & 300 V
Test Voltage: 2 kv/50 Hz 1 min.
5kv 1.2/50 us
Reduced values are valid
in case of repeat testing casing: Does not apply to the terminal connected to a common Aux supply.
Casing
: Flush mounting with rear connection
96x 192 / 192 x 192 x 200/250 mm
W H D
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