Timer Range
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 : .05 to 7.35 Sec. for under & over
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Frequency stage.
Reduced values are valid
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in case of repeat testing casing : Does not apply to the terminal connected to a common Aux supply.
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Reference frequency : 4 MHZ
Auxiliary supply voltage : 30-220 V DC
Contacts in relay
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 : 3 pair of N/O contact make & carry
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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
Operating voltage range
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 : 33 to 135 V the relay is block
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below this limit
 Frequency setting range : 39.00 to 70. 00 Hz in step of .1Hz
AC voltage rating : 110,220 VAC
 Aux DC (without tripping relays) : 11 W for 4 stages
Operations of the relay can be tested by means of a test, button which energies the output relays & LED’s after set time delay with the channels set to underover frequency operation. Access to the test push button requires removal of the front...