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• Multifunction measuring relay acc. to EN 60255-1
• Voltage monitoring (1- and 3-phase)
• Current monitoring
• Frequency monitoring
• Power factor cos phi
• Phase sequence, phase failure, asymmetry
• Effective-, reactive- and apparent power
• Start up delay, on delay
• Adjustable hysteresis 0.2 ... 50 % of response value
• Manual reset
• LCD for indication of the measuring values
• Relay output
MK 9300N: 1 changeover contact
MH 9300: 2 x 1 changeover contacts
• Relay function selectable (energized/de-energized on trip)
• As option with plugable terminal blocks for easy exchange
of devices
- with screw terminals
- or with cage clamp terminals
• MK 9300N: Width 22,5 mm

• Multifunction measuring relay acc. to EN 60255-1
• Voltage monitoring (1- and 3-phase)
• Current monitoring
• Frequency monitoring
• Power factor cos phi
• Phase sequence, phase failure, asymmetry
• Effective-, reactive- and apparent power
• Start up delay, on delay
• Adjustable hysteresis 0.2 ... 50 % of response value
• Manual reset
• LCD for indication of the measuring values
• Relay output
MK 9300N: 1 changeover contact
MH 9300: 2 x 1 changeover contacts
• Relay function selectable (energized/de-energized on trip)
• As option with plugable terminal blocks for easy exchange of devices
- with screw terminals
- or with cage clamp terminals
• MH 9300: Width 45 mm