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JCOMM BCMS integrated branch circuit monitoring system

Eaton Products
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The JCOMM branch circuit monitoring system (BCMS) is a fully integrated solution able to provide accurate high speed monitoring and alerting of key electrical performance metrics while supporting a wide range of targeted applications including fault detection, energy management and tenant billing. With the capability to collect, report and display on key electrical performance measurements such as voltage, current, power, frequency, energy and power factor the JCOMM BCMS is the perfect solution for your electrical power equipment. The fully integrated solution with its easy to mount enclosure makes retrofitting or upgrading existing Remote Power Panels (RPP), Power Distribution Units (PDU) and stand alone panelboards of nearly any configuration from PDI or other OEM vendors a breeze. Combined with our WaveStar color touchscreen monitor the JCOMM BCMS supports and simplifies activities such as measurement validation, alarm management, maintenance and repair.  With support for multiple communication protocols including Modbus RTU, Modbus TCP and SNMP the JCOMM bcms can be easily integrated with nearly any BMS, DCIM or EMS in the market today helping to complete the link between critical information and people, facilities and businesses who rely on it the most.

Engineered to support the demanding installation requirements of contractors

  • Robost pre-labeled cabling
  • Reduced installation time — plug and play connectors vs. traditional 6’ or 10’ whips on a split-core current transformer
  • Engineered and tested before delivery to job site
  • Compact packaging for common installation platforms

Product features and values

  • Pre-engineered harness saves up to 75% on installation time vs. other solutions
  • Retro-fittable on any power distribution equipment that contains panelboards
  • Monitors and collects data up to (4) 42-pole panelboards
  • Monitors up to (4) secondary main breakers
  • Plug and play solution

Core Features:

Fully intergrated enclosed solution

To reduce the cost and complexity of installation, the JCOMM BCMS comes with a fully integrated metal enclosure. The intuitive information display supports our latest WaveStar color touchscreen display for easy navigation and visualization of metering data and alerts.

Monitoring key performance metrics

The JCOMM BCMS collects and reports on all key electrical performance metrics including voltage, current, power, frequency, energy and power factor.

Accurate power measurements

The JCOMM BCMS is capable of measuring and reporting on power and energy consumption to within 1% error making it one of the most accurate solutions in the market.

Broad configuration support

The JCOMM BCMS is capable of supporting the wide variety of panelboard configurations found across equipment and facilities.

Extensive equipment support

The JCOMM BCMS is capable of supporting all of your equipment from RPPs and PDUs to stand alone panelboards from Eaton or other OEM manufacturers.

Multipule intergration options

To simplify connectivity to your building management system, energy management system or data center infrastructure management solutions, the JCOMM BCMS supports multiple integration options.


Eaton PDI JCOMM Specifications
BCMS data acquisition boards 1 or 2 BCMS boards
Points list (modbus register map) options Normal list (specialized for customized alarms) or
Power-kWH list (specialized for power measurements) IEC points (specialized for IEC panelboards)
1-2 voltage sources 208/120 Vac/60 Hz 3-phase 4-wire
42-168 branch circuits Monitored with split-core 60A current transformers (CTs)
2-4 main feeds or 2-4 subdistribution feeds (2 main or 2 subdistribution feeds per BCMS) Monitored with
- Split-core 5-250A CTs for ABCN
- Split-core 5A CT for G
CT branch circuit cable harnesses 21 BC connectors; 5, 10, 15, 20 ft. lengths
CT main or subdistribution circuit cable harnesses ABCNG connectors; 5, 15, 10, 20 ft. lengths
WaveStar color monitor, a 7-inch color touchscreen display Optional; display can monitor 20 downstream BCMS devices, such as panelboards
Setup connection USB 2.0 A-B high-speed cable
Weight (without cables) Approx. 11 lb. or 5 kg
Dimensions 20″W x 10″H x 6”D (51 cm x 25 cm x 15 cm)
Enclosure rating NEMA 1

Modbus RTU via RS422/485;

2-wire or 4-wire (jumper selected)

Protocol options upstream from monitor

Modbus RTU,

Modbus TCP/IP,


Modbus address range 1 to 247
Baud rate 9600
Parity Odd, even, or none
Communication format 8 data bits, 1 start bit, 1 stop bit
Input current rating 2.0A @ 115 Vac
Input voltage 120 Vac +/- 10%, 3-phase +neutral + ground
Input frequency 60 Hz +/-10%
Operating voltage 24 VDC
Power usage 50W @ 24 Vdc
Modbus signals 3 Vdc
Ground strip Computer grade single-point ground, compliant with FIPS Pub 94 and NEC requirements.
Storage temperature -36°C to +70°C (-33°F to 158°F)
Operating temperature 0°C to +60°C (32°F to 140°F)
Relative humidity ranges 0% to 95% non-condensing
Maximum operating altitude 3000 Meters
Unit standards compliance NFPA70, NFPA 75, IEC/ANSI/UL60950-1, CSA-C22.2, FIPS Pub, OSHA standards; applicable portions of IEC/ANSI/UL60950-1,CSA-C22.2
Manufacturing testing NEMA, UL and CSA standards


Front View
Front View
Front View


Download the Eaton PDI JCOMM BCMS Datasheet (PDF).

Pricing Notes:

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