function: 20 tyco electronics / www.tycoelectronics.com / factory direct technical support: 800-253-4560, ext. 2023 (u.s., canada, mexico) or 805-220-2020, ext. 2023 (international) ansi/ieee c37.90-1978 ul file no. e58048 csa file no. lr61158 voltage sensitive relays are available for both ac and dc applications for over/undervoltage protection. combination over/undervoltage relays provide bandpass capabilities. ac relays are either single or three-phase type. three phase models are de- signed to sense the average of the three phases or the highest single phase. voltage trip points are screwdriver adjustable, and operation is time-de- layed so that momentary voltage transients will not cause nuisance tripping. voltage sensitive relays product specifications sample part no. WUV-1-120 type: wuv - undervoltage wov - overvoltage no. phases 1 = single 3 = three line voltage vac 120 208 220 230 240 380 options p - transient protection a - two normally open contacts b - two normally closed contacts h - 125vdc, 3a contacts transient protection - all voltage relays will withstand momentary voltage surges of twice the nominal rated input voltage (standard). option "p" provides additional transient protection which complies with the requirements of ansi/ieee c37.90-1978 consult factory for additional models. part number selection notes: 1. remove black screw for access to the voltage trip adjustment. 2. clockwise rotation of the adjustment potentiometer will raise the voltage trip point. part number selection part number nominal voltage ............................... phase ................................................ line frequency ................................. pick-up to drop-out differential ...... drop-out point (u/v models) ........... pick-up point (o/v models) ............. output contacts ............................... contact ratings ................................ operating temperature range ........ power consumption ........................ time delay ........................................ minimum life ................................... wuv/wov 120 vac to 575 vac single or three 50-400 hz 2.5% maximum 70-100% of nominal voltage, screwdriver adjustable 100-125% of nominal voltage, screwdriver adjustable one set n.o., one set n.c. 5 amp resistive at 120 vac or 28 vdc -20 c to +65 c 2 va maximum 150-300 ms (uv model) 500,000 operations 416 440 460 480 525 575 single phase three phase 27/59 11 /64" dia. 4 mtg. holes 3.0 3 1 /2 3 7 /8 3.0 2 3 /4 3 1 /2 terminal strips #6 - 32 screws typical time curve -10.0 0.0 10.0 20.0 30.0 40.0 0 0.05 0.1 0.15 0.2 0.25 0.3 pick-up time delay overvoltage relays wov series note: dimensions in inches. multiply values by 25.4 for dimensions in mm. wilmar ? protective relays C wuv/wo v series
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