Eaton PXMP-MB-3A-A Enclosed Meter - NEMA 3R
Part Number: PXMP-MB-3A-A
Quick Summary
PXMP-MB-3A-A enclosed meter delivers compact power monitoring for industrial control panels. This modular enclosure is designed to reduce panel footprint while delivering reliable 3-phase energy data. Operators typically struggle with space constraints, environmental exposure, and integration gaps when adding metering to control panels. The unit’s NEMA 3R-rated enclosure, 50/60 Hz compatibility, and Modbus connectivity address those challenges by delivering durable protection and easy network integration. With a 120-240V rating and an integrated power supply, it supports scalable energy management without forcing a complete panel redesign. For engineers and procurement teams, this solution delivers dependable metering with straightforward installation and seamless compatibility with existing control architectures, enabling faster project delivery and clearer energy insights.
Product Information
Extended Description
PXMP-MB-3A-A Eaton: Eaton enclosed meter, PXMP(MB,No Meter Modules),No Display,NEMA3R(120/240V),3PH/4W Main Fuse Disconnect,Vdc Power Supply(PXMP-MB&DISP-6)
Product Name
Eaton enclosed meter
Catalog Number
PXMP-MB-3A-A
UPC
786689848149
Product Length/Depth
12 in
Product Height
30 in
Product Width
24 in
Product Weight
100 lb
Voltage rating
120-240V
Power supply
120-240V
Enclosure
NEMA 3R
Enclosure size
30inH x 24inW x 12inD
Number of meters
1
Display
No
Frequency rating
50/60 Hz
Communication
Modbus
Degree of protection
NEMA 3R
Metering devices, protective relays, software and connectivity
Metering devices, protective relays, software and connectivity
Eaton's Enclosed Meters
Feature → Business Impact → Application: The PXMP-MB-3A-A uses a rugged NEMA 3R enclosure to protect sensitive metering electronics from dust, moisture, and incidental exposure, reducing field maintenance and extending service life in harsh environments. This protection translates to lower downtime and improved data reliability for panel meters in outdoor or industrial rooms where weather resistance is essential. Feature → Business Impact → Application: It supports a 120-240V voltage rating with a matched 120-240V power supply, enabling direct integration with common plant power circuits without complex adapters, minimizing wiring errors and shortening installation timelines in new builds or retrofit projects. Feature → Business Impact → Application: Modbus communication provides straightforward, standards-based integration with SCADA/DCS systems, enabling centralized energy data collection, improved demand management, and cost savings through better asset utilization. Feature → Business Impact → Application: The unit ships with one meter and no display, reducing deployment costs while enabling clean integration with third-party dashboards and energy management software in machine centers and process lines. Feature → Business Impact → Application: The compact 30inH x 24inW x 12inD footprint and 100 lb weight balance installation practicality with room for future expansion (e.g., adding PXMP-MB DISP-6 modules), benefiting retrofit programs in existing facilities. Feature → Business Impact → Application: The 50/60 Hz rating ensures compatibility across global facilities, supporting standardized procurement and predictable performance in multi-site operations. Throughout, Eaton’s enclosure design and Modbus capability support industry-standard energy monitoring workflows, delivering measurable improvements in compliance, reliability, and total cost of ownership.
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FAQs
The PXMP-MB-3A-A is designed for 3-phase, 4-wire systems and fits typical panel upgrade projects. It supports a 120-240V input and Modbus communication, enabling straightforward integration with existing SCADA/DCS networks. Its compact 30inH x 24inW x 12inD footprint eases retrofits, while the 100 lb weight facilitates mounting in standard electrical rooms.
Key specs include a voltage rating of 120-240V, a 50/60 Hz frequency rating, Modbus communication, and a single meter configuration (no display). The enclosure uses a NEMA 3R-rated housing for protection against environmental exposure, and the system is suitable for installations requiring a safe main disconnect arrangement in 3PH/4W configurations.
Yes. The enclosure’s NEMA 3R rating provides nominal protection against rain, sleet, and corrosion in indoor or outdoor environments. This makes it well-suited for outdoor equipment houses, production floors, or exposed plant areas where robust protection and reliable metering data are essential.
With no display and a plain meter module, maintenance focus is on ensuring good electrical connections and clean mounting. The Modbus interface supports remote monitoring, reducing on-site visits. The durable NEMA 3R enclosure minimizes weather-related degradation, while planned upgrades (adding DISP-6 modules) can extend functionality without major rewiring.
Deploying the PXMP-MB-3A-A delivers improved energy visibility, enables real-time monitoring via Modbus, and supports safety through a robust main disconnect arrangement. The compact form factor eases panel integration, reduces installation costs, and enhances ROI by enabling better asset utilization and energy management across multiple sites.