11–15
WOUV DC Series, Over/Undervoltage
Protective Relays
Protective Relays
11
Catalog 5-1773450-5 Dimensions are shown for Dimensions are in millimeters USA: +1 800 522 6752 For additional support numbers
Revised 3-13 reference purposes only. unless otherwise specified. Asia Pacific: +86 0 400 820 6015 please visit www.te.com
Specifications subject UK: +44 800 267 666
www.te.com to change.
The relay will energize at
normal voltage conditions.
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 auto-
matic when the voltage
returns to normal.
Product Specifications
Nominal Voltage (±10%) —
12 VDC to 560 VDC
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 +75˚C
Temperature Effects —
Less than 1% voltage drift over the tem-
perature range.
Power Consumption —
12 to 60 VDC models — 1 W max.
120 to 305 VDC models — 2 W max.
405 to 470 VDC models — 3 W max.
560 VDC Model — 4 W max.
Time Delay — A short duration delay
is provided to prevent nuisance tripping
due to momentary dips or surges in volt-
age. The drop-out delay, following a
voltage fault is 75 to 100 milliseconds
Notes:
1. Remove black screws for access
to the O/V and U/V trip adjust-
ment.
2. Clockwise rotation of the adjust-
ment potentiometer will raise the
voltage trip point.
3. The adjustments are by means of
a single turn potentiometer. Use a
small screwdriver and do not force
beyond the limit stops.
Product Facts
n ANSI/IEEE C37.90-1978
Ordering Information
Sample Part Number 䊳 WOUV -12DC -A
Type:
WOUV - Over/Undervoltage
Line Voltage VDC
12DC 125DC
18DC 240DC
24DC 250DC
28DC 305DC
32DC 405DC
48DC 430DC
60DC 470DC
120DC 560DC
Options:
Blank - Standard
A = 2 Form A Contacts
B = 2 Form B Contacts
H = 125 VDC Contacts
P = Transient Protection
Single Phase
Note: Dimensions in inches. Multiply values by 25.4 for dimensions in mm.
Drop-Out Time Delay WOUV...DC Series
0
20
40
60
80
100
120
140
160
180
020406080100120140
Percent of Nominal Voltage
Transient Protection — All voltage
relays will withstand momentary voltage
surges of twice the nominal rated input
voltage (standard).
Option “P” provides additional tran-
sient protection which complies with the
requirements of ANSI/IEEE C37.90-1978
Consult factory for additional
models.
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