WavePro™ 3200–5000 Ampere Power Circuit Breakers
Chapter 4. Accessory Operation
Figure 6. Shunt Trip connections to the Auxiliary Switch and
secondary disconnect.
4–4 Undervoltage Trip Device
(Instantaneous)
7KH8QGHUYROWDJH7ULS'HYLFHDFFHVVRU\WULSVWKHFLUFXLW
EUHDNHU ZKHQ LWV FRLO LV GHHQHUJL]HG 7KH FDWDORJ
QXPEHUV IRU WKH 8QGHUYROWDJH 7ULS 'HYLFH IRU YDULRXV
YROWDJHDSSOLFDWLRQVDUHOLVWHGLQ7DEOH)RULQVWDOODWLRQ
LQVWUXFWLRQVVHH'(+
Catalog Number Voltage
Rating
Holding
Current, A
WPUVLF56120 120 Vac 0.15
WPUVLF56240 240 Vac 0.07
WPUVLFDC024 24 Vdc 0.58
WPUVLFDC048 48 Vdc 0.32
WPUVLFDC110 110 Vdc 0.15
WPUVLFDC125 125 Vdc 0.15
WPUVLFDC250 250 Vdc 0.07
Table 6. Catalog numbers and electrical ratings for the
Undervoltage Trip Device accessory.
Operation
7KH8QGHUYROWDJH7ULS'HYLFHWULSVWKHEUHDNHUZKHQLWV
FRLOLV GHHQHUJL]HG7KHFRLOOHDGVDUHFRQQHFWHGWR WHU
PLQDOV$ DQG$RQWKHVHFRQGDU\GLVFRQQHFWDVLOOXV
WUDWHGLQ)LJXUH
:KHQ WKH DSSOLHG FRQWURO YROWDJH LV DERYH RI WKH
8QGHUYROWDJH7ULS'HYLFH·VUDWHGYROWDJHWKH EUHDNHUFDQ
EHFORVHG&RQWURO YROWDJHPXVW EHDSSOLHG IRU RQHVHFRQG
EHIRUHWKHEUHDNHUFDQEHFORVHG:KHQWKHFRQWUROYROW
DJHGURSVWR²QRQDGMXVWDEOHRIWKHUDWHGYDOXH
WKH8QGHUYROWDJH7ULS'HYLFHZLOOWULSWKHEUHDNHU
Figure 7. Undervoltage Trip Device or Electric Lockout
connections to the secondary disconnect.
4–5 Undervoltage Trip Device with Time
Delay
7KH8QGHUYROWDJH7ULS'HYLFHZLWK7LPH'HOD\FRQVLVWVRI
DQ LQVWDQWDQHRXV 8QGHUYROWDJH 'HYLFH VLPLODU WR WKDW
GHVFULEHGLQVHFWLRQ²DQGDVHSDUDWHO\PRXQWHGWLPH
GHOD\XQLW7KHWLPHGHOD\XQLWSUHYHQWVWKHEUHDNHUIURP
WULSSLQJRQDPRPHQWDU\YROWDJHGURSLQWKHPRQLWRUHG
VRXUFH 7KH FDWDORJ QXPEHUVIRU WKH 8QGHUYROWDJH 7ULS
'HYLFHZLWK7LPH'HOD\DQGIRUWKH7LPH'HOD\XQLWIRU
YDULRXVFRQWUROYROWDJHVDUH OLVWHGLQ7DEOH)RULQVWDOOD
WLRQLQVWUXFWLRQVVHH*(+
Undervoltage with
Time Delay Time-Delay Voltage Rating
WPUVLFTD125 TAKYUVT-1 125 Vdc
WPUVLFTD250 TAKYUVT-2 250 Vdc
WPUVLFTD240 TAKYUVT-3 208/240 Vac
Table 7. Catalog numbers and control voltages for the Time
Delay accessory.
Operation
7KH WLPHGHOD\ XQLW LV VHSDUDWHO\ PRXQWHG IURP WKH
EUHDNHU7KHYROWDJHWREHPRQLWRUHGLVFRQQHFWHGWRWHU
PLQDOVDQGRIWKHWLPHGHOD\XQLW7HUPLQDOVDQG
RIWKHWLPHGHOD\XQLWDUHFRQQHFWHGWRWKH8QGHUYROWDJH
7ULS'HYLFHWKURXJK WHUPLQDOV$DQG$ RQ WKH VHF
RQGDU\GLVFRQQHFWDVLOOXVWUDWHGLQ)LJXUH
$QDFFRQWUROYROWDJHRWKHUWKDQ²9DFFDQEH XVHG
LIDQ DSSURSULDWHFRQWUROSRZHUWUDQVIRUPHULVSURYLGHG
7KLVWUDQVIRUPHUPXVWKDYHDPLQLPXPUDWLQJRI9$
7KH GHOD\ WLPH LV DGMXVWDEOH IURP² VHFRQGV &RQWURO
YROWDJHPXVWEHDSSOLHGIRURQHVHFRQGEHIRUHWKHEUHDNHU
FDQEHFORVHG
Figure 8. Undervoltage Trip Device time-delay unit
connections.
4–6 Electric Lockout
7KH(OHFWULF /RFNRXWXVHVDFRLOVLPLODUWRWKH8QGHUYROW
DJH7ULS'HYLFH WR NHHSWKHEUHDNHUIURPFORVLQJXQOHVV
WKHFRLOLVHQHUJL]HG7KHEUHDNHUWKXV FDQQRWEHFORVHG
XQOHVVFRQWUROYROWDJHLVDSSOLHGKRZHYHUORVVRIFRQWURO
YROWDJH ZLOO QRW WULS WKH EUHDNHU )RU H[DPSOH WZR