Voltage Monitor Relays

VW Series Voltage Band

Voltage Band Relays provide protection to equipment that is required to operate within an upper & lower voltage limit. As long as the operating voltage remains within an OVER & UNDER voltage range, the internal relay stays energized. If the operating voltage falls outside this range, the relay will drop-out.

When nominal operating voltage is applied, the internal relay will energize (Pick-up). If the operating voltage falls outside the preset OVER or UNDER trip points for a period longer than the drop-out time delay (T), the relay will de-energize (Drop-out). When the voltage returns to normal (within the preset OVER & UNDER trip points), the unit automatically resets and the relay energizes. Choose between a unit with fixed drop-out time of 500ms or one with an adjustable 0.5-10 second drop-out time.

Current Monitor Relays CUP Series--Under Current

Monitors AC single phase and DC voltages
Provides voltage band (window) protection
Wide range of user-adjustable Over Voltage and Under Voltage settings
Fixed or adjustable time delay on drop-out
LED indicates output relay status
Compact plug-in case utilizing industry standard 8 pin octal socket
10A DPDT output contacts

Fixed Drop-Out Time Delay (500ms)

NOMINAL VOLTAGE	OVER VOLTAGE RANGE	UNDER VOLTAGE RANGE	PRODUCT NUMBER	WIRING/SOCKET
24VAC 120VAC	24-30VAC 102-138VAC	18-24VAC 99-134VAC	VWP024A VWP120A	8 Pin Octal 70169-D DIAGRAM 20
12VDC 24VDC 48VDC 110VDC	12-15VDC 24-30VAC 48-60VDC 110-137VDC	9-12VDC 8-24VAC 36-48VDC 83-110VDC	VWP012D VWP024D VWP048D VWP110D	8 Pin Octal 70169-D DIAGRAM 20
Click here for Sockets & Accessories.

Adjustable Pick-Up & Drop-Out Settings **
Time Delay on Drop-out Fixed at 500ms

NOMINAL VOLTAGE	OVER VOLTAGE RANGE	UNDER VOLTAGE RANGE	PRODUCT NUMBER	WIRING/SOCKET
24VAC 120VAC	24-30VAC 102-138VAC	18-24VAC 99-134VAC	VAKP024A VAKP120A	8 Pin Octal 70169-D DIAGRAM 20
12VDC 24VDC 48VDC 110VDC	12-15VDC 24-30VAC 48-60VDC 110-137VDC	9-12VDC 8-24VAC 36-48VDC 83-110VDC	VAKP012D VAKP024D VAKP048D VAKP110D	8 Pin Octal 70169-D DIAGRAM 20
Click here for Sockets & Accessories.

Application Data

Voltage Monitoring Relays can be used as either overvoltage or undervoltage relays, depending on the output contact used:

Voltage Tolerance
+25%/-50% of nominal voltage; AC voltages are 50-60Hz; No supply (input) voltage is required.

Load (Burden): 3VA.

Voltage Settings
Over Voltage: 100-125% of Nominal Voltage
Under Voltage: 75-100% of Nominal Voltage

Temperature: 28o to 65o C (-20o to 150o F)

Indicator LED: Red when Relay is energized and Green when Relay is Off.

Reset: Automatic. Contact Macromatic for information on how to order a unit with Manual Reset.

Response Times:
Operate: 500ms
Release: Fixed 500 ms (VWP Series)

Adjustable 0.5 -10 Seconds (VWKP Series)

Output Contacts: DPDT 10A Resistive @240VAC/30VDC, 1/2HP @240VAC

Life:
Mechanical: 10,000,000 operations
Full Load: 100,000 operations

Transient Protection: 10,000 volts for 20 microseconds
Approvals:

Industrial Electronics By Ross LLC

Voltage Monitor Relays

VW Series Voltage Band

Fixed Drop-Out Time Delay (500ms)

Adjustable Pick-Up & Drop-Out Settings **
Time Delay on Drop-out Fixed at 500ms

Application Data

Dimensions

Industrial Electronics By Ross LLC

Voltage Monitor Relays

VW Series Voltage Band

Fixed Drop-Out Time Delay (500ms)

Adjustable Pick-Up & Drop-Out Settings **Time Delay on Drop-out Fixed at 500ms

Application Data

Dimensions

Adjustable Pick-Up & Drop-Out Settings **
Time Delay on Drop-out Fixed at 500ms