Product Brochure
Carlo Gavazzi offers a comprehensive range of monitoring controls for monitoring of phase loss, incorrect phase sequence, phase unbalance, over/under current, over/under load, over/under frequency, and over/under voltage.

Gavazzi products include current monitors, voltage monitors, power monitors, phase loss relays, and current transformers.

These monitors are used in a wide range of applications for protecting motors against the damaging effects of single phasing and overloads (elevators, compressors, pumps, air conditioning systems, mixing tanks). They are also used extensively for monitoring instrumentation signals (4-20mA, 0-10V), verification of machinery operation, detection of broken heater elements, monitoring of lights in critical areas (runway lights at airports), monitoring of ventilation fans, and in building automation systems.



Product Selector
DP 51/71 Series
Compact Current/Voltage/Phase Monitors with relay output

Current Monitor
Phase Loss/Sequence Monitor
Phase Loss/Sequence/Under Voltage Monitor
Phase Loss/Sequence/Voltage Monitor


DPA Series
Current/Voltage Monitors with relay output

Current Monitor
Voltage Monitor
Phase Loss/Sequence Monitor
1 Phase Voltage Window Monitor
3 Phase Voltage Window Monitor
Thermistor Monitor

DPB Series
Current/Voltage/Phase Monitors with relay output, adjustable hysterisis, and built-in timer

Current Monitor
Voltage Monitor
Frequency Monitor
Phase Loss/Sequence Monitor


DPC Series
Current/Voltage/Phase Monitors with 2 relay outputs, adjustable hysterisis, and 2 built-in timers

Current Monitor
Voltage Monitor
Phase Loss/Seq./Asym.
Load Guard


MI/MP Series
Single and three phase current transformers for use with Carlo Gavazzi monitoring relays

Single Phase
Three Phase


E83/A82 Series
Current transformers with 4-20 mA output

0 - 50 Amps
0 - 500 Amps/4-20 mA out
0 - 500 Amps/0-10 V out


CTD Series
Standard current transformers with 0-5 Amp output

Up to 300 Amps
Up to 600 Amps
Up to 1200 Amps
Up to 1600 Amps
Up to 2000 Amps


CTD-S Series
Split core current transformers with 0-5 Amp output

100 to 400 Amps (26x32 mm opening)
150 to 1000 Amps (50x52 mm opening)
150 to 1000 Amps (30x80 mm opening)
400 to 2000 Amps (35x125 mm opening)
400 to 2000 Amps (50x126 mm opening)


DER Series
DC Current Shunts

0- 10000 Amps