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Multi-channel Power and Energy Meter

Fitting for both new and retrofit projects, SATEC’s Branch Feeder Monitor™, is a multi-circuit power meter, monitoring up to 12 three-phase power circuits or 36 single-phase, or any combination. The BFM136 utilizes High Accuracy Current Sensors (HACS) and is ideal for a wide range of applications, from monitoring medium-voltage substations through commercial multi-tenant billing in shopping-centers or office buildings.
The BFM136 is a highly reliable piece of equipment featuring a rugged design for a long life of uninterrupted service.



Cost-effective: saves drastically on installation costs and space occupied by dozens of legacy meters

Multi-circuit: multi-load metering

  • up to 12 three-phase loads
  • up to 34 single-phase loads
  • various combinations of the two

Revenue Meter:

  • Class 0.5/0.5S accuracy per ANSI C12.20 / IEC 62053-22


  • Built-in ports: RS485; ETH
  • BACnet; Modbus RTU

Multi-option Current Inputs

  • 40mA for HACS CTs (100-3,000A)
  • special input: clip-on 5A HACS for retrofit
  • 100mA inputs for 3rd party CTs (not supplied by SATEC)

Technical Specifications

Power Meter

  • Power: voltage, current (including neutral current), power, energy (import & export), power factor, frequency, voltage/current unbalance
  • Ampere/Volt demand meter
  • Event and parameter data-logging
  • measurement at 50/60 Hz
  • Sampling frequency: 64 samples per cycle

Revenue Meter

  • Class 0.5S / 0.5 accuracy per IEC 62053-22 / ANSI C12.20 for active energy
  • Class 1 accuracy for reactive energy
  • Bills up to 12 individual three-phase clients or 54 single-phase clients or various combinations in between
  • Time-of-Use billing and logging: 4 energy/demand registers x 6 tariffs, 4 seasons x 4 types of days, 8 tariff changes per day; easy programmable tariff schedule

Data Logger

  • Event recorder: non-volatile memory for timestamped event and data recording for each channel
  • Automatic 120-day daily profile for import/export energy and maximum demand readings (total and tariff registers) for each submeter
  • Logging internal diagnostic events and setup changes
  • 2 separate programmable data logs, on a periodic basis, per channel
  • 4 control setpoints, programmable thresholds and delays for each submeter

Variable Current Inputs

36 current inputs, available in one of the following options:

  • 40mA HACS CT designated inputs (available HACS ratings: 100A-3,000A)
  • split-core HACS CTs for 5A secondary current
  • 100mA inputs for 3rd party CTs (not supplied by SATEC)

Voltage Measurement Inputs

Voltage measurement range: 120 (207) to 277 (480)V AC ± 15% (accuracy is guaranteed to this voltage range)

LCD Display

  • Local LCD display providing up to 36 channels of consumption readings for each tenant

Real Time Clock

  • Built-in clock and calendar functions
  • Accuracy: < 1 min/month @ 25°C

Communication Interfaces

  • RS485
  • Ethernet 10/100Base-T

Communication Protocols

  • BACnet
  • Modbus

Power Supply

  • Self-Energized from measured voltage
  • Auto-range power supply: 88-552V AC

Meter Security

3 level password security for protecting meter setups and accumulated data from unauthorized changes



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