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| Voltage Sensitive Relays WILMARTM Protective Relays - WOUVT Series, Over/Undervoltage Function: 27/59 * ANSI/IEEE C37.90-1978 Voltage sensitive relays are available for both AC and DC applications for overvoltage and undervoltage protection. Combination over/undervoltage relays provide band-pass capabilities. AC relays are either single or three-phase type. Three phase relays are designed to sense the average of the three phases. Voltage trip points are screwdriver adjustable, and operation is time-delayed so that momentary voltage transients will not cause nuisance tripping. TERMINAL STRIP #6 - 32 SCREWS 3.0 Operation: The relay will energize at normal voltage condition. The normally closed contact (Form B) will open and the normally open (Form A) will close. The relay will de-energize after time delay when over or undervoltage condition is reached. 3 1 /2 1 /4 3 4 1 /8 5 /8 Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm. Part Number Nominal Voltage ............................... Phase ................................................ Line Frequency ................................. Type of Sensing ............................... Undervoltage Trip ............................ Overvoltage Trip ............................... Drop-out Time Delay ........................ Pick-up to Drop-out Differential ...... Output Contacts ............................... Contact Ratings ................................ Operating Temperature Range ........ Power Consumption ........................ Notes: 1. Remove black screw for access to the voltage trip and time delay adjustment potentiometer. 2. Clockwise rotation of the voltage adjustment potentiometer will raise the voltage trip point. 3. Clockwise rotation of the time adjustment potentiometer will increase the drop-out time delay. 4 1 /2 4 11 /64" DIA. 4 MTG. HOLES PART NUMBER SELECTION Sample Part No. WOUVT -1-120AC Type: WOUVT - Over/Undervoltage No. Phases 1 = Single 3 = Three (line to line) Line Voltage VAC 400 115 416 120 440 200 460 208 480 220 525 230 575 240 380 Options: Blank - Standard A = 2 Form A Contacts B = 2 Form B Contacts H = 125 VDC Contacts P = Transient Protection Option "H" provides for contacts rating of 3 amps @ 125VDC. Option "P" provides additional transient protection which complies with the requirements of ANSI/IEEE C37.901978 Consult factory for additional models. PRODUCT SPECIFICATIONS WOUVT 120 VAC to 575 VAC Single or Three 50-400 Hz Average of all three phases 70-100% of nominal voltage, screwdriver adjustable 100-125% of nominal voltage, screwdriver adjustable 0.5 to 20 seconds, screwdriver adjustable 2% maximum One set N.O., One set N.C. 5 amp resistive at 120 VAC or 28 VDC -40C to +70C 4 VA maximum 24 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) |
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