9-1393792-3 TE Connectivity, 9-1393792-3 Datasheet - Page 470

• Manufacturer Part Number: 9-1393792-3
• Description: Electromechanical Relay DPDT 3A 5VDC 125Ohm Through Hole
• Manufacturer: TE Connectivity
• Type: Signal Relayr

Specifications of 9-1393792-3

• Contact Arrangement: DPDT
• Dc Coil Voltage: 5 V
• Coil Current: 40 mA
• Mounting: Through Hole

1314
WD81OU Operation
WD81OU frequency relays are used to provide frequency monitoring and
protection to generators, buses, power supplies, and other equipment. The
relay operates at voltages from 120 to 480 Vac and at nominal frequencies of
50, 60, and 400 Hz. External controls include nominal frequency selection,
under frequency (UF) trip set, over frequency (OF) trip set, UF time delay, and
OF time delay. A green LED indicates power to the relay. Red LED’s indicate
the status of the UF and OF trips.
WD81OU Specifications
Nominal Operating Frequency: 50, 60 or 400 Hz., selectable.
Maximum Frequency @ 400Hz. Nominal: 1000 Hz.
Nominal Sensing Voltage: 20-480VAC.
Maximum Sensing Voltage: 575VAC.
Contact Form: 1 form C (SPDT) for underfrequency and 1 form C (SPDT)
for overfrequency.
Time Delay Adjustment: 0.5 to 10 sec.
Sense Frequency:
Control Voltage:
Ordering Information
Our authorized distributors are more likely to stock these items.
None at present.
WD81OU Typical Hookup
Frequency (nominal)
UF Adjustment Range
OF Adjustment Range
Model WD81OU
Input Voltage (VDC)
Input Voltage (VAC)
Dimensions are shown for
reference purposes only.
1. Basic Series:
2. Type:
3. Control Voltage:
WD = DIN mount Protective Relay.
81OU = Over/Underfrequency Relay.
001 = 18 to 54VDC
002 = 13.5 to 32 VDC
003 = 100-200VDC or 100-140VAC.
Typical Part Number
40-50
50-60
B
18 to 54
50
-001
–
Dimensions are in inches over
(millimeters) unless otherwise
specified.
48-60
60-72
60
13.5 to 32
WD 81OU -002
-002
–
360-400
400-480
400
100 to 200
100 to 140
-003
Catalog 1308242
Issued 3-03
WD81OU Connections
WD81OU Calibration
The calibration marks on the faceplate are provided only as guides. Proper
calibration requires using an accurate frequency meter in parallel with the
input signal.
UNDER FREQUENCY
1. Remove the cover.
2. Set the SENSE FREQUENCY to the nominal system frequency. Adjust
3. Apply the desired trip frequency to the relay.
4. Slowly adjust the TRIP SET control CCW until the relay trips.
5. Set the TIME DELAY control to the desired time delay and apply
6. Step down the applied frequency from nominal to just below the trip
7. Adjust the TIME DELAY and repeat steps 5 and 6 until the desired time
OVER FREQUENCY
1. Remove the cover.
2. Set the SENSE FREQUENCY to the nominal system frequency. Adjust
3. Apply the desired trip frequency to the relay.
4. Slowly adjust the TRIP SET control clockwise (CW) until the relay trips.
5. Set the TIME DELAY control to the desired time delay and apply
6. Step down the applied frequency from nominal to just below the trip
7. Adjust the TIME DELAY and repeat steps 5 and 6 until the desired time
WD81OU Controls
WD81OU Over/Underfrequency Relays
• Function 81 OU
• ANSI/IEEE C37.90-1978
the Under Frequency TRIP SET fully clockwise (CW) and the TIME
DELAY control fully counterclockwise (CCW).
nominal frequency to the relay.
level set in Step 4 and measure the time delay.
delay is set.
the OF TRIP SET and TIME DELAY controls fully counterclockwise
(CCW).
nominal frequency to the relay.
level set in Step 4 and measure the time delay.
delay is set.
Specifications and availability
subject to change.
www.tycoelectronics.com
Technical support:
Refer to inside back cover.
KILOVAC