Bender Incorporated • 700 Fox Chase, Coatesville PA 19320 • Tel.
: (800) 356-4266 • Fax: (610) 383-7100
VME420
Multi-functional monitoring relays for over
voltage, under
voltage and frequency monitoring in AC/DC systems with external supply
voltage
Product description The
voltage relays of the VME420 series are designed to monitor the frequency, under
voltage, over
voltage and the
voltage between two threshold values (window discriminator function) in AC and DC systems.
The
voltages are measured as r.
m.
s.
values.
The currently measured value is continuously shown on the LC display.
The measured value leading to the activation of the alarm relays will be stored.
Due to adjustable response times...