Description
Product Overview
The EATON MP3010 66D2205G01 is a versatile and robust Electronic Trip Unit (ETU) designed for integration with Eaton’s Magnum low-voltage power circuit breakers, specifically within the Magnum DS (Drawout) series. This device is the intelligent «brain» of the circuit breaker, responsible for providing advanced protection, precise measurement, and comprehensive communication capabilities. Its primary function is to continuously monitor the electrical current flowing through the breaker’s main contacts and, based on user-configurable protection settings, command the breaker to trip (open) in the event of an overload, short-circuit, ground fault, or other predefined electrical fault conditions. The MP3010 goes beyond basic protection, offering detailed metering of key power parameters (current, voltage, power, energy, etc.) and enabling remote control and monitoring via integrated communication ports.
The suffix
66D2205G01denotes a specific hardware and feature configuration, likely indicating a particular current sensor rating (e.g., 2500A), voltage input options, and communication protocol support (such as Modbus RTU or Ethernet). As a critical component in power distribution systems, the value of the EATON MP3010 66D2205G01 lies in its ability to safeguard downstream electrical equipment (motors, transformers, cables) from damage due to electrical faults, while also providing valuable data for energy management, system diagnostics, and predictive maintenance. For facility managers, system integrators, and electrical engineers, this trip unit transforms a simple circuit breaker into a smart, networked asset within a power management system, enhancing electrical safety, reliability, and operational efficiency.Technical Specifications
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Parameter Name
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Parameter Value
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Product Model
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EATON MP3010 66D2205G01
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Manufacturer
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Eaton Corporation
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Compatible Breaker
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Eaton Magnum DS Low-Voltage Air Circuit Breaker (e.g., 600V, 3200A frame)
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Product Type
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Electronic Trip Unit (ETU) with metering and communication
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Rated Current (In)
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Specific to configuration (e.g., 2500A as suggested by part of the code), adjustable via plug-in rating plugs.
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Protection Functions
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Long-time Overcurrent (L), Short-time Overcurrent (S), Instantaneous Overcurrent (I), Ground Fault (G). Each with adjustable pick-up and delay settings.
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Metering Parameters
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True RMS phase currents, ground current, average current, voltage (line-line, line-neutral), active/reactive/apparent power, power factor, frequency, energy (kWh, kVARh), demand.
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Display
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Backlit LCD for local display of measured values, settings, and event logs.
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Communication Ports
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Typically includes: 1 x RS-485 port for Modbus RTU, and may include an Ethernet port (Modbus TCP/IP) depending on the specific
-G01variant. |
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Event Logging
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Stores multiple time-stamped events (trips, alarms, setting changes).
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Alarms
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Pre-alarm and alarm outputs configurable for various conditions (e.g., overload warning, ground fault warning).
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Power Supply
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Self-powered from the breaker’s current sensors (CTs) or optionally from an external control power source.
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Environmental Rating
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Designed for installation within the circuit breaker compartment.
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Agency Approvals
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UL, CSA, CE, IEC 60947-2.
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Key Features and Advantages
EATON MP3010 66D2205G01 excels through its integration of protection, metering, and connectivity. A primary advantage is its highly adjustable protection curves. Unlike fixed thermal-magnetic breakers, the electronic curves for Long-time, Short-time, Instantaneous, and Ground Fault protections can be finely tuned to match the specific characteristics of the protected load (e.g., motor starting inrush, cable ampacity). This enables optimal selectivity (coordination) with upstream and downstream protective devices, minimizing the scope of an outage during a fault. The unit provides true RMS measurement of current, ensuring accuracy even with harmonic-distorted waveforms common in modern facilities.
Advanced diagnostics and energy insight are central to its value proposition. The MP3010 acts as a high-accuracy power meter at the distribution level, providing data crucial for energy audits, load balancing, and identifying inefficient equipment. Its event log with time stamps is invaluable for post-fault analysis, helping to determine the cause and sequence of events leading to a trip. The integrated communication capabilities (Modbus RTU/TCP) allow the breaker to become a node in a SCADA, BMS, or power monitoring system (like Eaton’s Power Xpert), enabling remote real-time monitoring of electrical parameters, remote operation (open/close), and receipt of alarms.
User-friendly interface and reliability enhance its practicality. The backlit LCD and intuitive button navigation make local configuration and data viewing straightforward. The use of rating plugs allows the same trip unit frame to be applied over a range of continuous currents by simply changing the plug, offering flexibility and reducing spare part inventory. For electrical system designers, the EATON MP3010 provides a future-proof solution that not only protects electrical infrastructure but also delivers the intelligence needed for smarter energy management and condition-based maintenance of the distribution system.
Application Areas
The EATON MP3010 66D2205G01 is designed for installation in Eaton Magnum DS low-voltage power circuit breakers, which are the primary protection devices in electrical distribution systems for commercial, industrial, and institutional facilities.
Its key applications include:
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Main Circuit Breakers in low-voltage switchgear, protecting the entire incoming service or a large section of a plant.
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Feeder Circuit Breakers protecting major distribution feeders to other switchboards, motor control centers (MCCs), or large process loads.
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Large Motor Branch Circuit Protection where its adjustable curves can be set to allow for motor starting current while providing precise running overload protection.
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Generator Main Breakers for standby or prime power systems.
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Critical Power Distribution in data centers, hospitals, and manufacturing plants where power reliability and monitoring are essential.
Essentially, any application that utilizes a Magnum DS frame circuit breaker for protecting a circuit rated at several hundred to a few thousand amps, and where advanced protection, energy data, or integration into a building management system is desired, is a candidate for the MP3010 trip unit.
Related Products
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Eaton Magnum DS Circuit Breaker Frame: The physical breaker assembly that houses the MP3010 trip unit.
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Eaton Rating Plug: A plug-in module that sets the continuous current rating (In) of the trip unit (e.g., 1600A, 2000A, 2500A).
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Eaton Communication Modules (e.g., for Ethernet/IP, Profibus): Additional modules that can be added to the trip unit or breaker to support other communication protocols.
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Eaton Power Xpert Software/Systems: Eaton’s suite of power monitoring, control, and analysis software that aggregates data from multiple MP3010-equipped breakers.
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Eaton Drawout Rack (Cell): The switchgear compartment into which the Magnum DS breaker with the MP3010 is installed.
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Eaton External Current Sensors (CTs): For ground fault protection schemes that require core balance CTs.
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Eaton FlexLogic Relay (for more complex protection): A separate relay that could be used in conjunction with or as an alternative for more advanced applications.
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Third-party SCADA/PLC Systems: Which can communicate with the MP3010 via Modbus to integrate breaker status and data.
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