Dold Multifunction Monitoring Relay, 3 Phase, SPDT, 24 → 400V ac, DIN Rail

Multifunction measuring relay
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 plug able terminal blocks for easy exchange of devices
- with screw terminals
- or with cage clamp terminals
MK 9300N: Width 22,5 mm
Advantages / Customer benefit
Min-, Max. value or window monitoring
Simultaneous monitoring of up to 9 different parameters
Simple configuration and fault diagnostic
Different fault indications
Early detection of irregular states