VMKE Series
May not be exact product – for reference only.
VMKE240
Lead Time:
Function
Nominal Voltage
output
Time Delay on Fault
mount
Setting Adjustment
Options
Monitored Voltage
Dropout Voltage Setting
$105.50
Description of Function
Function Chart
Product Overview
Features:
• Provides voltage band (window) protection
• Wide range of user-adjustable over voltage and under voltage settings
• 10A SPDT output contacts
• Adjustable time delay on drop-out of 0.5-10 seconds
• LED indicates nominal voltage & output relay status
• Compact 17.5mm enclosure mounts on 35mm DIN rail
Enclosure Style:
Configuration / Contact Rating:
Application Information:
• Overvoltage Range (Umax): 160-276V AC (50/60Hz)
• Under Voltage Range (Umin): 30-95% of Pick-up setting
• Response Times:
Time Delay on Pick-up: Fixed 0.1 Seconds
Time Delay on Drop-out (t): Adjustable 0.1-10 seconds
• Repeatability: <1%
• Life:
Mechanical: 10,000,000 operations
Electrical: 70,000 operations
• Mounting 35mm Din Rail only
• Temperature:
Operating: -20°C to 55°C (-4° to 131°F)
Storage: -30°C to 70°C (-22° to 158°F)
• Termiantion: 14 AWG
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
VMKE240
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