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)

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

momentary voltage surges of twice the nominal rated

input voltage (standard).

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

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

WILMAR™ Protective Relays – WUV/WOV Series