VWKE240A
Lead Time: In Stock
Description Of Function
As long as the monitored voltage (Un) remains within the OVER (Umax) & UNDER (Umin) voltage settings, the internal relay stays energized. If the monitored voltage falls outside this range, the relay will drop-out. The Umax dial sets the upper limit per the Overvoltage range of the product. The Umin dial sets the lower limit at 30-95% of the upper setting. This product has an adjustable time delay on drop-out of 0.1-10 seconds (t) to prevent nuisance tripping.
Function Chart

Product Overview
Features
- Provides voltage band (window) protection
- Wide range of user-adjustable Over Voltage and Under Voltage settings
- 15A SPDT output contacts
- Adjustable time delay on drop-out of 0.1 - 10 seconds
- LEDs indicate nominal voltage & output relay status
Enclosure Style
17.5mm Modular for 35mm DIN-Rail Mounting
Configuration / Contact Rating
- SPDT
- 15A @ 240V AC, B300
Application Information
- Voltage Tolerance: See table below; No supply (input) voltage is required.
- Load (Burden): 3 VA (AC); 1.7W (DC)
- Voltage Settings:
VWKE024D VWKE120A VWKE240A Monitored Voltage (Un) 24V DC 120 VAC 240 VAC Overvoltage Range (Umax) 18-30V DC 80-150V AC 160-276V AC Undervoltage Range (Umin) 30-95% of Overvoltage Range (Umax) - LED Indication: Green-Monitored Voltage present; Red-Relay ON
- Response Times: Pick-up: 100 ms; Drop-out: Adjustable 0.1-10 seconds
- Output Contacts: 15A @ 240V AC, B300
- Life: Mechanical: 10,000,000 operations; Full Load: 70,000 operations
- Temperature: -30° to 70° C (-22° to 158° F)
Operation

Provides protection to equipment that is required to operate within an upper & lower AC single phase or DC voltage limit. As long as the monitored voltage (Un) remains between the OVER (Umax) & UNDER (Umin) voltage settings, the internal relay stays energized. If the monitored voltage falls outside this range, the relay will drop-out. The Umax dial sets the upper trip setting per the Overvoltage range of the product. The Umin dial sets the lower trip setting at 30-95% of the upper setting. These products have an adjustable time delay on drop-out of 0.1-10 seconds (t) to prevent nuisance tripping. They have a compact 17.5mm enclosure which snaps on to 35mm DIN track. This conserves space & reduces installation time, which saves money.
File Downloads
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Digital Catalog
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901-0000-282 - Installation Instructions VWKE Series
Instruction Sheet
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VWKE eCAD Package
CAD Drawing