3 3 7/8 3 1/2 13/64 DIA. 4 MTG. HOLES Voltage Sensitive Relays WILMAR Protective Relays WOUV DC Series, Over/Undervoltage Function: ANSI/IEEE C37.90-1978 The relay will energize at normal voltage condi- tions. The normally open contacts will close, and the normally closed contacts will open. The relay will de-energize during over or undervoltage conditions. Reset is automatic when the voltage returns to normal. 13 2 /16 (+) (-) Drop-Out Time Delay WOUV...DC Series 180 160 Drop-Out Time Delay, 140 WOUV DC Series 120 100 80 Trip Setting: O/V - 110% 60 U/V - 90% 40 20 0 0 20 40 60 80 100 120 140 Time Delay (msec) Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm. PART NUMBER SELECTION Sample Part No. WOUV-12DC-A Type: WOUV - Over/Undervoltage PRODUCT SPECIFICATIONS Line Voltage VDC Part Number 12DC 125DC WOUV 18DC 240DC Nominal Voltage (10%) ................. 12 VDC to 560 VDC 24DC 250DC Drop-out Point (u/v models) ........... 28DC 305DC 70-100% of nominal voltage, screwdriver adjustable 32DC 405DC Pick-Up Point (o/v models) ............. 100-125% of nominal voltage, screwdriver adjustable 48DC 430DC Output Contacts ............................... One set N.O., One set N.C. 60DC 470DC 120DC 560DC Contact Ratings ................................ 5 amp resistive at 120 VAC or 28 VDC Options: Operating Temperature Range ........ -40C to +75C Blank - Standard A = 2 Form A Contacts Temperature Effects ......................... Less than 1% voltage drift over the temperature range. B = 2 Form B Contacts Power Consumption ........................ 12 to 60 VDC models: 1 W max. H = 125 VDC Contacts 120 to 305 VDC models: 2 W max. P = Transient Protection 405 to 470 VDC models: 3 W max. 560 VDC Model: 4 W max. Transient Protection - All voltage relays will withstand momentary voltage surges of twice the nominal rated A short duration delay is provided to prevent nuisance Time Delay........................................ input voltage (standard). tripping due to momentary dips or surges in voltage. The drop-out delay, following a voltage fault is 75 to Option provides additional transient protection 100 milliseconds which complies with the requirements of ANSI/IEEE Notes: C37.90-1978 1. Remove black screws for access to the O/V and U/V trip adjustment. 2. Clockwise rotation of the adjustment potentiometer will raise the voltage trip point. 3. The adjustments are by means of a single turn potentiometer. Use a small screwdriver and Consult factory for additional models. do not force beyond the limit stops. 23 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) 2.0 TERMINAL STRIPS 6 - 32 SCREWS 2 3/4 3 1/2