Eaton ETR-4000-2A1GB1 Transformer Relay - RS-485

Part Number: ETR-4000-2A1GB1
ETR-4000-2A1GB1
Manufacturer
Eaton
Part number
ETR-4000-2A1GB1
Category

Quick Summary

The Eaton transformer relay is a protection device that monitors transformer circuits in industrial power systems. Engineers often struggle to integrate protective relays with existing control architectures while maintaining reliable fault isolation. Compliances are not listed in the provided data; typical transformer relays align with standards such as CE, SIL, and IP-rated enclosures—confirm exact marks with Eaton. The ETR-4000-2A1GB1 supports Modbus RTU or DNP3 RTU over RS-485 and spans a broad power supply range, simplifying deployments across sites. These capabilities translate to reduced downtime, easier retrofits, and stronger SCADA integration for data-driven protection strategies. This product is well-suited for industrial automation and power protection projects that demand robust, networked protection.

Product Information

Extended Description

ETR-4000-2A1GB1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Modbus RTU or DNP3 RTU over D-SUB / RS485, 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, D-Sub / RS-485,19-300Vdc, 40-250Vac, 50/60 Hz, Projection,Sensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1GB1
UPC
786679154465
Product Length/Depth
8.06 in
Product Height
8.7 in
Product Width
9.72 in
Product Weight
9.3 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
Contact Manufacturer
Application
Transformer
Type
Transformer relay
Product Category
Transformer protection relay
Analog inputs
0
Analog outputs
0
Base relay
ETR-4000
Conformal coating
Conformal Coated Circuit Boards
Communication
Modbus RTU or DNP3 RTU over D-SUB / RS485
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
IRIG-B Sensitive Ground Input URTD Interface Trip Coil Monitor
Modbus / DNP3 RTU
D-Sub / RS-485
Phase current
5A, 1A
Sensing inputs
Differential Protection Current Protection and Metering
Zone selective interlocking
2
Number of inputs
8
Number of outputs
9
Power supply range
19-300Vdc, 40-250Vac
Frequency rating
50/60 Hz
Power consumption
40-250 Vac, 19-300 Vdc
Number of inputs
8
Number of outputs
9
Power supply range
19-300Vdc, 40-250Vac
Power consumption
40-250 Vac, 19-300 Vdc
Frequency rating
50/60 Hz
Terminals
Removable
Mounting method
Projection
Voltage sensing inputs
0
Terminals
Removable
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Feature: Modbus RTU or DNP3 RTU over RS-485 enables seamless integration with modern SCADA and automation systems. Business Impact: Enables remote monitoring, faster fault isolation, and easier diagnostics, reducing mean time to repair and improving system availability. Application: Transformer protection networks in manufacturing plants and data centers rely on reliable serial communications for cross-domain visibility. Feature: Broad power supply range 19-300 Vdc and 40-250 Vac supports single inventory across sites and reduces wiring complexity. Business Impact: Lower stock diversity, faster deployment, and consistent protection behavior across varying plant electrical architectures. Application: Retrofit projects and greenfield installations where voltage standards vary. Feature: 8 digital inputs and 9 outputs with 2 current sensing inputs provide robust control logic and flexible interlocking. Business Impact: Enhanced protection schemes, zone selective interlocking capability, and precise control sequencing. Application: Transformer protection with scalable alarm and trip coordination in substations and industrial feeders. Feature: I/O options including IRIG-B Sensitive Ground Input and Trip Coil Monitor improve timing accuracy and fault visibility. Business Impact: Accurate time synchronization and reliable trip corroboration, improving protection selectivity. Application: Critical protection schemes requiring synchronized measurements and secure trip verification. Feature: Conformal coating and removable terminals boost reliability in harsh environments and ease field installation. Business Impact: Higher resilience against dust, humidity, and thermal stress; faster maintenance and upgrades. Application: Outdoor or rugged installations where protection reliability is paramount. Feature: Base relay compatibility with ETR-4000 ecosystem ensures straightforward upgrades and scalability. Business Impact: Protects existing investments while enabling future feature expansion. Application: Retrofit programs that want to preserve protection logic while adding advanced communication and monitoring.

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FAQs

Install the ETR-4000-2A1GB1 by mounting the unit in a suitable enclosure with removable terminals for quick wiring. Connect the Modbus RTU or DNP3 RTU interface to the RS-485 network, assign the 8 digital inputs and 9 outputs to the control scheme, and ensure the power supply is within 19-300 Vdc or 40-250 Vac. Use shielded cables for communications and verify proper grounding to minimize noise on the RS-485 lines. The unit’s protection logic is designed to plug into the ETR-4000 base relay framework, simplifying retrofit integration.
The relay offers differential protection, current protection and metering capabilities, with 2 current sensing inputs and 8 digital inputs feeding a comprehensive protection logic. It supports zone selective interlocking (2) to improve selective tripping, and provides 5A/1A phase current sensing, enabling accurate fault detection and fast isolation while minimizing disturbances to nearby equipment.
Yes, it includes conformal coating on circuit boards for better reliability in dusty or humid environments and supports IRIG-B sensitive ground input with Trip Coil Monitor options for enhanced timing accuracy and trip verification. This makes it suitable for industrial substations, outdoor installations, and facilities requiring synchronized protection actions.
The data indicates Compliances: Contact Manufacturer, so you should verify the exact regulatory marks (for example CE or UL) with Eaton based on your region and application. Always confirm certification surface protection, enclosure IP rating, and any region-specific safety standards before deployment to ensure full regulatory compliance.
ROI is driven by reduced downtime through faster fault isolation, simplified SCADA integration via Modbus RTU / DNP3 RTU, and inventory consolidation due to a broad power supply range. The 8/9 I/O configuration plus removable terminals speed installation and future upgrades, while conformal coating and remote monitoring capabilities help extend service intervals and improve protection reliability.