SATEC BFM-II Branch Feeder Monitor – Multi-Circuit Power Meter | Up to 18 Three-Phase Circuits
| Mounting Style | DIN Rail |
Fitting for both new and retrofit projects, SATEC's Branch Feeder Monitor™ is a multi-circuit power meter monitoring up to 18 three-phase power circuits or 54 single-phase, or any combination. The BFM-II utilizes High Accuracy Current Sensors (HACS) and is ideal for a wide range of applications – from monitoring medium-voltage substations to commercial multi-tenant billing in shopping centers or office buildings. DIN-rail mounting, built-in communication ports, anti-tamper enclosures. Modular expansion allows additional I/O modules and power supply. Cost-effective: saves on installation costs and space Multi-circuit: Modular options – up to 18 three-phase or 54 single-phase loads Dual Input Voltage: 2 parallel measurements for two independent 3-phase power sources (VIM optional) Revenue Meter:
Key Highlights
Revenue Meter
- Class 0.5/0.5S accuracy per ANSI C12.20 / IEC 62053-22
- Anti-tamper design
Communication
- Built-in: RS485; ETH
- Optional: 4G modem
- BACnet; Modbus RTU; DNP3.0; IEC 60870-5-101/104
Digital & Analog I/O (modular)
- Digital I/O: up to 72 digital I/O
- Analog: up to 16 inputs
Current Inputs
- 40mA for HACS CTs (5–3,000A)
- 3V AC inputs for flex clamps (Rogowski coil)
Technical Specifications
| Power Meter | True RMS volts, amps, power, energy, power factor, neutral current; event and parameter data-logging; 64 samples per cycle |
|---|---|
| Harmonic Analyzer | |
| Voltage and current THD, TDD and K-Factor | |
| Harmonic spectrum and angles up to 25th order | |
| Revenue Meter | |
| Class 0.5S/0.5 per IEC 62053-22/ANSI C12.20 | |
| Bills up to 18 three-phase or 54 single-phase clients | |
| TOU billing: 8 energy registers × 8 tariffs, 4 seasons × 4 day types, 8 tariff changes/day | |
| 120-day automatic daily profile for energy/demand readings | |
| Pulse reading via DI for water and gas meters | |
| Voltage & Power Supply | |
| Nominal: 120/208–277/480V AC (L-N/L-L) | |
| Range: 70–561V AC 50/60 Hz | |
| Self-energized; Optional AUX: 50-290V AC, 40-290V DC | |
| Modular I/O | Up to 72 DI; 18 DO; 4 Analog inputs |
| Communication Interfaces | RS485; Ethernet 10/100Base-T; USB Type A; Optional: 4G modem |
| Protocols | Modbus; ASCII; BACnet; DNP3.0; IEC 60870-5-101/104 |
| Security | 3-level password; Anti-tamper design |
| Mounting | DIN-rail |
Optional I/O & Expansion
Modular add-on options
- Current Input Modules (CIM): 6-channel or 18-channel, available in HACS, RS5, or FLEX versions. Up to 2 CIM per device (1 when VIM module used)
- Voltage Input Module (VIM): 2nd set of 3-phase voltage inputs for parallel power sources. Up to 1 per device
- Auxiliary Power Supply: 50–290V AC, 40–290V DC
- 4G Cellular Modem: Optional wireless connectivity
- Graphic Display Module (GDM): Optional 3.5" 320×240 touch-screen
Available Models
- BFM-II base unit + modular expansions:
- Up to 2 CIM modules: 6-channel or 18-channel, HACS/RS5/FLEX
- 1 VIM module (2nd voltage input set)
- I/O expansion modules (up to 72 DI, 18 DO)
- Optional 4G modem and GDM display
- When VIM used: max 12 three-phase current channels