Pole Top Power Monitor

Pole Top Power Monitor

Packaged Solution for Distribution Automation Applications

NovaTech offers complete packaged pole top enclosures to support distribution automation applications. Solutions are engineered and manufactured to customer specifications and typically include the enclosure, locking door (with door switch), radio and attached distribution sensors. At the heart of this solution is the new Bitronics Pole Top Power Monitor (M661P3) which connects directly to low voltage outputs from Lindsey and other distribution sensors and calculates accurate voltages, currents, power and energy. The M661P3 includes compensation algorithms to improve overall accuracy, picks up on Definite Time Over Current (relay element 51) and records and reports Peak Fault Currents in DNP3 or Modbus registers. The M661P3 features a compact transducer footprint to provide mounting flexibility, requires no environmental or noise conditioning, and provides a 12V dc output to power the radio or any other accessory. As with all NovaTech utility products, the M661P3 comes with a 10-year “no hassle” warranty with no repair fees.



  • DNP3 or Modbus protocol available via serial port or Ethernet port


  • Full measurement set including volts, amps, watts, kWh, demands, peaks and frequency
  • Peak fault currents and time overcurrent pickup
  • Voltage measurements: 0.2% of reading (3.5 to 20Vrms)
  •  Current Measurements: 0.25% of full scale (200Vrms input to transducer)
  • Updated every cycle


  • Operating temperature range: -40 to +70°C, storage temperature -40 to +85°C
  • Humidity: 0-95% non-condensing
  • Surge withstand: ANSI/IEEE C37.90.1: 2002


  • No need for PC software; all settings configured through a web browser.


  • End-of-Line Monitor (EOL)
  • Volt-VAR Optimization (VVO)
  •  Conservation Voltage Reduction (CVR)
  •  Fault Location Isolation and Service Restoration (FLISR)
  •  Fault Indication using a definite time overcurrent relay element (ANSI Code 51)
  •  Report Peak Fault Current


Dimensions: 4” H x 5.25” W x 6.34” D (102mm H x 133mm W x 161mm D)

Weight: 1.8 lbs. (.81 kg)

Power Supply:
120V ac or 240V ac

Voltage Inputs:
– Four terminals (A, B, C, and Common).
– Up to 20V ac

– Three terminals
– Inputs are 10Vrms (representing 600A rms)
– Accommodates peaks of 200Vrms for measuring fault currents

– RJ45 10BaseT/100BaseTX port for service port functions and protocols
– Serial port RS-232/RS-485 four-wire and one binary input