Description
VME421H-D-2 BENDER Voltage Monitor
Brand:BENDER Model number:VME421H-D-2
Lead Time:3-day working day Country of origin: Germany
Price: Please contact us Product weight:2.5kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: FedEx, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
Product details:
The voltage monitor VME421H monitors AC/DC systems in the frequency range of DC/15…460 Hz for undervoltage, overvoltage, underfrequency or overfrequency.
Device variant -1 is suitable for the nominal voltage range Un = 9.6…150 V, device variant -2 for Un = 70…300 V. The supply voltage is taken from the nominal voltage being monitored Un.
In order to meet the requirements of the applicable standards, customised parameter settings must be made on the equipment in order to adapt it to local equipment and operating conditions. Please heed the limits of the range of application indicated in the
technical data.
• Voltage and frequency monitoring of single-phase machines and electrical installations
• Earth fault monitoring in medium-voltage systems via voltage transformers
• Monitoring of battery systems
• Switching machinery and equipment on and off at a certain voltage level
Once the supply voltage is applied, the start-up delay “t” begins. Measured voltage and
frequency values changing during this time do not influence the switching state of the
alarm relays.
The devices feature two separately adjustable measuring channels (overvoltage/undervoltage). When the measuring quantity exceeds the response value (“Alarm 1”) or falls
below the response value (“Alarm 2”), the time of the response delays “ton1/2” begins.
Once the response delay has elapsed, the alarm relays switch and the alarm LEDs light up. When the measuring value exceeds or falls below the release value (response value plus hysteresis) after the alarm relays have switched, the selected release delay “toff” begins. When “toff” has elapsed, the alarm relays switch back to their initial position. When the fault memory is activated, the alarm relays remain in alarm position until the reset button R is pressed. Also in the event of complete power failure of the system being
monitored, the delay times are effective during the energy backup discharging time.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation!
Colour:new Warranty: 12 months
Lead Time:3-day working day Country of origin: Sweden
Price: Please contact us Product weight:0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.
Full 12-month warranty on all components
Dedicated after-sales support
Same-day dispatch on 1000s of parts
All units are fully tested
- 1. Email confirmation
You will get an email confirming that we have received your enquiry. - 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition. - 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.


Full 12-month warranty
Available for dispatch immediately
We deliver worldwide