5-1618108-3

Protective Relays WUVT/WOVT Series Product Specifications Product Facts n Function 27/59 n ANSI/IEEE C37.90-1978 n UL File No. E58048 n CSA File No. LR61158 TERMINAL STRIPS #6 - 32 SCREWS R R 3.0 4 1 /8 1 /2 5 /8 4 Overvoltage Models The relay is de-energized at normal voltages, N.C. contacts are closed and N.O. contacts are open. The relay will energize, when the voltage rises and remains above the O/V set point for the duration of the set time delay. 3 Undervoltage Models The relay is energized at normal voltage, N.C. contacts will open and N.O. contacts will close. The relay will de-energize when the voltage drops and remains below the U/V set point for the duration of the set time delay. 3 1 /2 4 1 /4 11 / 64" DIA. 4 MTG. HOLES Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm. Single Phase Three Phase Ordering Information Sample Part Number 䊳 WUVT -1 -120 Type: WUVT - Undervoltage WOVT - Overvoltage Nominal Voltage — 100 VAC to 575 VAC Phase — Single or Three Line Frequency — 50-400 Hz Pick-up to Drop-out Differential — 1% typical Drop-out Point (u/v models) — 70-100% of nominal voltage, screwdriver adjustable Pick-Up Point (o/v models) — 100-125% of nominal voltage, screwdriver adjustable Output Contacts — One set N.O., One set N.C. Contact Ratings — 5 amp resistive at 120 VAC or 28 VDC Operating Temperature Range — -40˚C to +70˚C Power Consumption — 3 VA maximum Time Delay — 0.5 to 20 seconds, screwdriver adjustable Voltage Reset — The reset is automatic when voltage returns to normal. Notes: 1. Remove black screws for access to the voltage and time delay adjustment potentiometer. 2. Clockwise rotation of the voltage adjust potentiometer will raise the voltage trip point. 3. Clockwise rotation of the time adjust potentiometer will increase the time delay (Pick-up time for O/V models, drop-out time for U/V models). 4. The adjustments are single turn potentiometers, use a small screwdriver and do not force beyond the limit stops. 5. On U/V models, when the voltage falls to approximately 33% of nominal or below, the relay will drop out in 0.150 to 0 .300 seconds, regardless of the time delay setting. No. Phases 1 = Single 3 = Three (line to line) Line Voltage VAC 100 240 115 380 120 416 150 440 200 460 208 480 220 525 230 575 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. Options: Blank - Standard A = 2 Form A Contacts B = 2 Form B Contacts H = 125VDC 3A Contacts P = Transient Protection 11–14 Catalog 5-1773450-5 Revised 3-13 www.te.com Dimensions are shown for reference purposes only. Specifications subject to change. Dimensions are in millimeters unless otherwise specified. USA: +1 800 522 6752 Asia Pacific: +86 0 400 820 6015 UK: +44 800 267 666 For additional support numbers please visit www.te.com