Circuit Breaker Monitoring Systems Comparison Chart
Choosing the right circuit breaker monitoring system starts with understanding how the options compare. The chart below provides a side-by-side look at the Dynamic Ratings Breaker Performance Monitor
Supported Not supported
| Feature | Dynamic Ratings BPM | Hitachi | Incon Optimizer 2 | Incon Optimizer 3 | GE CB Watch 3 | Qualitrol QBCM |
|---|---|---|---|---|---|---|
| General features | ||||||
| LEDs | 8 | 13 | 17 | 3 | 10 | 3 |
| Alarm relays | 2 Form C 1 Form A | 2, problem and caution | 2 Form C 1 Form A | 1 Form C | 2 Form C, 16 Form A (optional module) | 3, undefined configuration |
| Sampling rate | 128 samples/cycle | 3.33 kHz; duration of 150 ms | 32 samples/cycle | 32 samples/cycle | 0.4 ms | 32 / 64 / 128 samples per cycle |
| Operating range | -40 to +85°C with option for -50°C | -40 to +70°C | -40 to +65°C | -40 to +65°C | -40 to +55°C with option for -50°C | -40 to +75°C |
| Humidity | 95% non-condensing | Not stated | 85% non-condensing | 95% non-condensing | Not stated | 97% non-condensing |
| Supply voltage | 88 to 276 VAC 88 to 288 VDC | 48, 125 and 250 VDC | 85 to 264 VAC 110 to 370 VDC | 90 to 264 VAC 110 to 250 VDC | 150 to 240 VAC 150 to 250 VDC -30 to +15% | 100 to 240 VAC 125 to 250 VDC |
| User interface | Yes | Yes, Desktop application | Yes | Yes | Yes, Integrated webserver | PC-based interface |
| Dimensions | 9.77 × 5 × 5.62″ ganged breaker 14.75 × 5 × 5.62″ IPO | 11.5 × 3.47 × 6.25″ | 8.69 × 5.63 × 3″ | 11.13 × 5.63 × 2.63″ | 6.5 × 9.4″ | 15 × 5.5 × 2.75/3.5/4.5″ |
| Measured parameters | ||||||
| Gas pressure / density | Yes | Yes | Analog/digital | Analog/digital | Yes | Yes |
| Gas trending | Yes | Yes | Yes | No | Yes | Yes |
| Gas dew point | Yes | No | No | Yes | No | Yes |
| Contact wear | Waveform analysis | Aux contacts | Aux contacts | Aux contacts | Aux contact or travel sensor | Not stated |
| Arc time | Waveform analysis | Aux contacts | Aux contacts | Aux contacts | Optional (aux contacts) | Aux contacts |
| Restrike detection | Waveform analysis | Aux contacts | Aux contacts | Aux contacts | No | Aux contacts |
| Load current | Split core CT with voltage output | Split core CT with voltage output | Split core CT with voltage output | Split core CT with voltage output | Optional | Split core CT with voltage output |
| Open time | Waveform analysis | Aux contacts | Aux contacts | Split core CT with voltage output | Optional | Aux contacts |
| Close time | Waveform analysis | Aux contacts | Aux contacts | Split core CT with voltage output | Optional | Aux contacts |
| Trip coil signature | Waveform capture | No | No | Trip signature monitor needed | Optional | Aux contacts |
| Waveform comparison | Yes | Yes | No | Trip signature monitor needed | No | Yes |
| Timing determination | Waveform analysis | Waveform analysis | Aux contacts | Aux contacts | Optional (aux contacts / travel sensor) | Timing transducer |
| Trip coil status | Split core CT | Pulsed voltage | No | Trip signature monitor needed | Optional | Split core CT |
| Close coil status | Split core CT | Pulsed voltage | No | Trip signature monitor needed | Optional | Split core CT |
| Charging motor run time | Direct input | Transducer | No | Transducer required | Optional | Direct input |
| Charging motor starts | Direct input | Transducer | No | Transducer required | Optional | Direct input |
| Number of starts / time period | Direct input | Yes | No | Transducer required | Optional | Direct input |
| Charging motor current | Split core CT | No | No | Transducer required | Optional | Split core CT |
| AC phase loss | Direct input up to 240 VAC Transducer above 240 VAC | Transducer | No | 4–20 mA transducer | Optional | Not stated |
| Non-controlled cabinet heaters | Direct input | Transducer | No | Auxiliary unit | Optional | Not stated |
| T-stat controlled cabinet heaters | Direct input | Transducer | No | Auxiliary unit | Optional | Not stated |
| Tank heaters | Direct input | Transducer | No | Auxiliary unit | Optional | Yes |
| Cabinet temperature | RTD | Yes | No | Yes | Optional | Not stated |
| Ambient temperature | RTD | Not stated | Not stated | Yes | Optional | Not stated |
| Position of main contacts | Aux contacts | Aux contacts | Aux contacts | Aux contacts | Aux contacts / travel sensor | Aux contacts |
| Last operation date | Software | Software | Software | Software | Yes | Software |
| Operation count | Aux contacts | Software | Software | Software | Yes | Software |
| Fault count | Software | Software | Software | Software | No | Software |
| Communications | ||||||
| Ethernet (copper, fiber) | Yes | Optional | Yes | Yes | Yes | Yes |
| Serial (RS485, RS232, fiber) | Yes | Yes | Yes | Yes | No | Yes |
| Communication protocols | Modbus, DNP, IEC 61850 | Modbus, DNP | Modbus, DNP | Modbus, DNP | Modbus, DNP, IEC 61850 | Modbus, DNP, IEC 61850 |
| Sensor inputs | ||||||
| Temperature | Cabinets, mechanism, tanks | Cabinets, tanks | Not stated | Cabinets, tanks | Cabinets, tanks | Not stated |
| SF6 gas | Yes | Yes | Yes | Yes | Yes | Yes |
| Load current | Yes | Yes | Yes | Yes | Optional | Yes |
| Coil signature | Yes | No | No | Trip signature monitor needed | Yes | Yes |
| Coil monitoring | Yes | Pulsed current | No | Trip signature monitor needed | Yes | Yes |
| AC & DC power monitoring | Yes | No | No | 4–20 mA transducer | Optional | Yes |
| Auxiliary switches | Yes | Yes | Yes | Yes | Optional | Yes |
Specifications subject to change without notice. Last updated August 5, 2025.