VWKP Series
May not be exact product – for reference only.
VWKP012D
Lead Time:
Function
Nominal Voltage
output
Time Delay on Fault
mount
Setting Adjustment
Options
Monitored Voltage
Dropout Voltage Setting
$108.25
Description of Function
Function Chart
Product Overview
Features:
• Provides voltage band (window) protection
• True RMS voltage measurement ensures more accurate sensing
• Wide range of user-adjustable over voltage and under voltage settings
• Adjustable time delay on drop-out of 0.1-10 seconds
• LED indicates output relay status
• Compact plug-in case utilizing industry standard 8 pin octal socket
• Pilot duty rating
• 10A output contacts
Enclosure Style:
Configuration / Contact Rating:
Application Information:
• Power Consumption: Less than 2VA
• Voltage Settings:
Pick-up (Umax): Adjustable across full range as shown in the product selection table
Drop-out: 75-95% of Over/Under Voltage Setting
• Setting Accuracy:
Maximum Setting (Adjustable): +5%, -0%
Minimum Setting (Adjustable): +0%, -50%
Fixed Voltage Setting: ±2%
• Repeatability <1%
• Sensing Accuracy: ±2%
• Temperature
Operating: -28°C to 65°C (-18° to 149°F)
Storage: -40°C to 85°C (-40° to 185°F)
• Response Times:
Pick-up: 0.5 seconds
Drop-out (t): Adjustable 0.1-10 seconds
• Life:
Mechanical: 10,000,000 operations
Full Load: 100,000 operations
• Transient Protection: 2000V per IEC 61000-4-5 Level 3 (±2kV)
• Reset: Automatic
Approvals:
Operations
Over/Under Voltage Relays provide protection to equipment where either an over or under voltage condition is potentially damaging. They are designed to operate when the operating voltage reaches a preset value and drop-out when the operating voltage drops to a level below the preset value.
Adjust the pick-up voltage setting (Umax) between the full range as shown on the product nameplate. Then adjust the drop-out voltage setting (Umin) between 75% and 95% of the pick-up setting. The relay energizes (and the LED is Red) when the monitored voltage is above the pick-up setting for a period longer than the fixed pick-up time delay of 0.5 seconds. The relay de-energizes (and the LED is Green) when the monitored voltage is below the drop-out setting for a period longer than the drop-out time delay (t), which is adjustable between 0.1-10 seconds.
Product Reviews
VWKP012D
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