Voltage Sensitive Relays
WILMAR™ Protective Relays – WUV/WOV Series
Function:
27/59
•
ANSI/IEEE C37.90-1978
TERMINAL STRIPS
#6 - 32 SCREWS
•
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.
3.0
Note:
Dimensions in inches. Multiply values by 25.4 for dimensions in mm.
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 ...................................
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.
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)
3.0
1 /2
3
7 /8
3
2
3/4
1 /2
3
Typical Time Curve
40.0
30.0
Overvoltage Relays
WOV Series
20.0
11 /64" DIA.
4 MTG. HOLES
10.0
0.0
-10.0
0
0.05
0.1
0.15
0.25
PART NUMBER
0.2
SELECTION
0.3
Pick-Up Time Delay
PART NUMBER SELECTION
Single
Phase
Three
Phase
PRODUCT SPECIFICATIONS
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
Sample Part No.
WUV-1-120
Type:
WUV - Undervoltage
WOV - Overvoltage
No. Phases
1 = Single
3 = Three
Line Voltage VAC
120
416
208
440
220
460
230
480
240
525
380
575
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.
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