BENDER DIN rail monitoring relays

... Undervoltage, overvoltage and frequency monitoring of AC/DC systems 0…300 V Various monitoring functions selectable U, f Adjustable start-up delay, response delay and delay on release Password protection for device ...

... Undervoltage, overvoltage and frequency monitoring of AC/DC systems 9.6…150 V (VME421H-D-1), 70…300 V (VME421H-D-2) Integrated energy storage, is supplied by the system being monitored Various monitoring functions selectable ...

... overvoltage and frequency monitoring in 3(N)AC systems 0…500 V Integrated energy backup Asymmetry, phase failure and phase sequence monitoring Adjustable start-up delay, response delay and delay on release Various ...

... the standards, the relays of the VMD460-NA will switch. The VMD460-NA is multifunctionally adjustable. The currently measured values are continuously shown on the LC display. The measured values leading to the tripping of the relays ...

... measured value required to trigger the alarm relay is stored. The VMD461 features additional measuring functions for: ROCOF df/dt Vector shift monitoring Unbalance monitoring Phase sequence monitoring The ...

... Applications Monitoring of the power supply of machines and electrical installations Monitoring of loads Switching electrical systems on and off at a certain voltage level Monitoring of stand-by and ...

... The energy backup of the ES258 series is a supplementary device for the undervoltage/overvoltage relay VMD258. It provides the electronics of the connected VMD258 with the necessary energy, to cover the duration of the maximum response ...

... terminals per connection) RoHS compliant Applications Loop monitoring of motors Loop monitoring of PE conductor connections for wire interruptions in electrical installations Monitoring of earthing ...