Bender
Measuring and monitoring relay
Multifunctional monitoring relays for AC/DC systems
Various measuring and monitoring relays are available for monitoring electrical
and monitoring relays are available. In addition to overvoltage / undervoltage,
Frequency, asymmetry, phase sequence, phase failure, loop monitoring
application-specific special solutions are also possible: such as extended temperature ranges
Temperature ranges, compact design, industry-specific standards or country-specific profiles.
LINETRAXX VME420/421H:
- Monitoring of undervoltage, overvoltage and frequency of AC/DC systems
- Various monitoring functions selectable
< U, > U, < f, > f - Start-up, response and release delay
- Adjustable switching hysteresis
- RMS value measurement (AC + DC)
- Digital measured value display via multifunctional LC display
- Preset function (automatic basic parameterization)
- LEDs for operation, alarm 1, alarm 2
- Measured value memory for trigger value
- Permanent self-monitoring
- Internal test/reset button
- Two separate alarm relays, 1 changeover contact each
- Quiescent/operating current and fault memory behavior selectable
- Password protection for device settings
- Sealable transparent cover
- 2-module housing (36 mm)
- Spring terminal (two terminals per connection)
- RoHS-compliant
LINETRAXX VMD420/421/423:
- Monitoring of undervoltage, overvoltage and frequency in 3(N)AC systems
- Monitoring of asymmetry, phase failure, phase sequence
- Various monitoring functions selectable
< U, > U, < f, > f - Start-up, response and release delay
- Adjustable switching hysteresis
- Effective value measurement
- Digital measured value display via multifunctional LC display
- Preset function (automatic basic parameterization)
- LEDs for operation, alarm 1, alarm 2
- Measured value memory for trigger value
- Permanent self-monitoring
- Internal test/reset button
- Two separate alarm relays, 1 changeover contact each
- Quiescent/operating current and fault memory behavior selectable
- Password protection for device settings
- Sealable transparent cover
- 2-module housing (36 mm)
- Spring terminal (two terminals per connection)
- RoHS-compliant
LINETRAXX VMD460:
- Simple commissioning thanks to preset basic programs for country-specific standards and directives.
- Single-fault safety
- Monitoring of the connected coupling switches
- Isolated network detection df/dt (ROCOF)
- Vector jump
- RS-485 interface (data exchange/parameterization/software update)
- Test function for determining the switch-off time
- Test button for the tripping circuit
- Retrievability of the last 300 mains faults with time stamp/real-time clock
- Permanent monitoring of phase and phase conductor voltage
- Separate switch-on conditions after a threshold value violation
- Language selection (German, English, Italian)
- Illuminated graphic display
- Password protection for device settings
- Remote switch-off via ripple control signal receiver
- Sealable housing
LINETRAXX VMD461 with CD440:
- In conjunction with the CD440 coupling device, DC networks up to 1200 V, 1AC networks up to 690 V, 3AC networks up to 1200 V and 3NAC networks up to 690 V can be monitored
- Display of all functions in ANSI codes
- Monitoring of DC, 1AC, 3(N)AC systems DIN EN 60255-1:2010-9
- Single-fault safety
- Monitoring of unbalance, phase failure, rotating field
- Monitoring of the connected (circuit) breakers: configurable: NC/NO/off
- Islanding detection df/dt (ROCOF)
- Vector jump function
- RS-485 interface (data exchange/parameterization/software update)
- Test function for determining the switch-off time
- Test button for the tripping circuit
- Retrievability of the last 300 mains faults with time stamp/real-time clock
- Permanent monitoring of phase and phase conductor voltage
- Separate switch-on conditions after a response value violation
- Language selection (German, English, French)
- Illuminated graphic display
- Password protection for device settings
- Remote switch-off via ripple control signal receiver
- Sealable housing
- Voltage and frequency Frequency monitoring of single-phase machines and systems
- Earth fault monitoring via voltage transformers in medium-voltage networks
- Monitoring of Battery systems
- Switching systems on and off Systems above a certain voltage
