Description
Unboxing & Physical Snapshot
- Model & Brand: Eaton MP3010, Style No. 66D2205G01 — MP-3000 fixed-case motor protection relay, 5 A CT version, without optional INCOM/Modbus/DeviceNet communications. Eaton documentation identifies 66D2205G01 specifically with MP3010.
- Physical Dimensions: Approximately 10.25 × 6.72 × 3.70 in. (260.4 × 170.7 × 94.0 mm), H × W × D. Some Eaton-related dimensional listings show a 4.3-inch depth, so verify the mechanical drawing against the actual revision before cabinet fit-up.
- Estimated Shipping Weight: Allow approximately 7 lb (3.2 kg) for freight planning; the bare fixed-case relay is also documented at approximately 4 lb (1.8 kg) in an Eaton manual revision. Use the packed weight from your warehouse scale for the commercial invoice and freight booking.
- What’s in the Box: Relay assembly, mounting hardware as applicable, and documentation when supplied as a complete OEM package. Do not assume optional PONI, URTD, communication hardware, or accessories are included unless the packing list and nameplate confirm them.
Product Introduction
The MP3010 sits in the motor protection layer of a low-voltage power-control assembly rather than functioning as a generic PLC I/O module. The 66D2205G01 configuration is the fixed-case, 5 A CT version of the Eaton MP-3000 family, with RS-232 capability identified in Eaton’s product specifications. Its physical installation is panel-oriented, with the rear terminals carrying CT, control-power, trip, alarm, auxiliary, and grounding connections.
Treat the complete style number as the asset identity. MP3010 variants exist with INCOM, Modbus, DeviceNet, URTD, and different CT configurations, so substituting a visually similar relay without checking the style number can create a protection-setting or wiring mismatch (a particularly serious issue during emergency replacement). Eaton documentation also identifies a 120/240 Vac control-power architecture for the MP-3000 family.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Eaton |
| Product family | MP-3000 |
| Catalog number | MP3010 |
| Style number | 66D2205G01 |
| Device type | Motor protection relay |
| Case type | Fixed case |
| CT input | 5 A nominal |
| Communications | RS-232; optional communication variants use separate style numbers |
| Control power | 120 Vac or 240 Vac nominal |
| Control-power range | 90–132 Vac at 120 V; 180–264 Vac at 240 V |
| Maximum power consumption | 20 VA |
| Current input capability | 2 × In continuous; 50 × In for 1 second |
| Phase-current accuracy | Approximately ±1% of In in the documented operating region |
| Operating temperature | −20 to +60 °C |
| Storage temperature | −20 to +85 °C in the technical data; another manual revision specifies −45 to +85 °C, so verify the applicable revision |
| Relative humidity | 0–95%, non-condensing |
| Dimensions | 10.25 H × 6.72 W × 3.70 D in. |
| Approximate weight | 7 lb / 3.2 kg for the documented configured unit |
| Event log | 100 events |
| Trip/alarm log | 20 trips and alarms |
| Start history | Last 4 starts |
| Clock retention | Data retention documented at 100 years; clock operation includes 30-day no-battery backup |
| Applicable standards | ANSI/IEEE C37.90, C37.90.1, C37.90.2, UL-1053; EMC testing includes EN 61000-6-2 and related immunity standards |
Eaton MP3010 66D2205G01
Eaton documentation lists 20 VA maximum control-power consumption for the MP-3000, with additional allowances for optional URTD and IPONI equipment. That figure is important for panel heat-load calculations; do not substitute a wattage estimate without accounting for the AC power factor and installed options.
The MP-3000 records 100 events, 20 trips/alarms, and the last four starts. These are asset-condition records, not unlimited historical storage, so export or capture event information before removing a failed relay from service.
Global Compliance & Industry Certifications
- UL: Eaton-related product specifications identify the MP3010 as UL Recognized.
- cUL: The same product data identifies cUL Listed status.
- CSA: Eaton product data identifies CSA Recognized status.
- ANSI/IEEE: The MP-3000 documentation identifies ANSI/IEEE C37.90, C37.90.1, and C37.90.2 testing/standards.
- CE Mark: Do not automatically claim CE marking for this exact legacy style. Eaton’s later selection documentation distinguishes which product families carry CE; the MP-3000 row should therefore be checked against the actual nameplate and declaration.
- ATEX/IECEx: No evidence was found establishing ATEX or IECEx certification for this exact style. Do not classify it for hazardous-area installation based solely on the relay’s UL/CSA credentials.
- Marine approvals: DNV GL or equivalent marine approval should not be claimed unless the exact style number and certificate support it.
For plant safety, the distinction matters. A UL/CSA approval for the relay does not automatically establish hazardous-area suitability, marine approval, or system-level certification. Verify specific lot certifications with OEM.
Long-Term Storage & Asset Preservation Guide
- Preserve the electronics in controlled packaging. Keep the relay in its original packaging where possible, with ESD protection maintained around the electronic assembly. Avoid loose storage where terminal hardware can contact the front-panel electronics or connectors.
- Control humidity aggressively. Eaton specifies non-condensing humidity for operation, but a warehouse should avoid repeated condensation cycles. For multi-year storage, maintain a dry indoor environment and use desiccant inside the sealed shipping package (without allowing desiccant or packaging material to obstruct ventilation during eventual installation).
- Protect the terminals and nameplate. Keep CT and control terminals covered from dust, salt contamination, and corrosive vapors. Record the style number 66D2205G01, serial number, date code, and firmware/configuration information before placing the asset into long-term inventory—this prevents a visually identical MP-3000 variant from being issued accidentally.
Do not power-cycle a preserved relay simply to “keep it healthy.” Functional testing should be performed under a controlled maintenance procedure with suitable CT simulation and protection-test equipment.
Physical Installation Prerequisites
- Mounting: The is a fixed-case, panel-mounted relay rather than a DIN-rail PLC module. Eaton identifies the MP-3000 fixed case as a panel-mount construction.
- Cabinet clearance: Preserve adequate clearance around the enclosure for wiring access and heat dissipation. A 50 mm minimum working clearance above and below is a practical starting point where the cabinet drawing permits it; the project-specific Eaton mounting drawing takes precedence.
- Cooling: Do not pack cable bundles directly against the enclosure or block cabinet airflow around the relay.
- Grounding: Bond the designated equipment/functional grounding point to the cabinet grounding system using the approved conductor and termination hardware. Verify continuity before energization.
- CT wiring: Confirm that the replacement is the 5 A CT version. Never connect a 1 A CT circuit to a 5 A relay configuration merely because the front-panel hardware appears identical.
- Control power: Confirm the installed control voltage before energization. The documented MP-3000 supply architecture supports 120 Vac and 240 Vac, with different permitted voltage ranges.
- Protection testing: Perform secondary injection or an equivalent protection-system functional test after installation. Verify CT polarity, trip contacts, alarm contacts, settings, and motor-protection functions before returning the motor to service.
Buyer’s FAQ
Q: What HS tariff code should I use for Eaton 66D2205G01?
A: Do not assign an HS code solely from the model number. This is an electrical protective relay, and classification can depend on the importing country’s tariff schedule, voltage characteristics, and customs interpretation. Have your customs broker validate the applicable HS heading and national tariff subheading before issuing the commercial invoice.
Q: Does the Eaton manufacturing origin affect the shipment?
A: Yes. Country of Origin (COO) must be established from the actual product documentation and traceability records; Eaton’s corporate location is not sufficient evidence of origin. Record COO separately from the seller’s shipping location, particularly for preferential-duty claims or origin-sensitive procurement.
Q: Should this relay be insured as a high-value spare?
A: For international shipment, normally yes when replacement cost or operational criticality is material. Use the commercial value and agreed Incoterm to determine who carries transit risk, then retain photographs of the serial number, nameplate, packaging, and sealed carton condition before handoff to the carrier.
Q: Does 66D2205G01 include the latest firmware?
A: Do not assume it does. This is a legacy MP-3000 platform, and the exact firmware/configuration can vary by production date and revision. Before installation, record the firmware revision and compare it with the site’s approved protection configuration; confirm compatibility with the installed relay documentation and application settings.
Asset-control note: Eaton documentation clearly distinguishes / 66D2205G01 from variants such as 66D2205G02 (INCOM), 66D2205G03 (Modbus), and 66D2205G04 (DeviceNet). The style number should therefore be treated as a controlled identification field during receiving inspection and warehouse issue.
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