Description
Product Overview
The ABB O3EEb HENF318176R1 is a high-precision electronic overload relay engineered to protect motors and industrial electrical systems from damage caused by overloads, phase imbalances, and voltage fluctuations. As part of ABB’s advanced motor control portfolio, this relay combines robust hardware with intelligent monitoring capabilities to ensure reliable operation in demanding industrial environments. The O3EEb HENF318176R1 belongs to ABB’s premium series of motor protection devices, designed to meet the rigorous safety and efficiency requirements of modern automation systems.
Featuring a compact design and modular construction, the ABB O3EEb HENF318176R1 provides real-time current and temperature monitoring, enabling proactive fault detection and minimizing downtime. Its core functions include precise overload protection, phase sequence verification, and thermal memory capabilities, making it an essential component for motor control centers (MCCs), pumps, compressors, and other rotating equipment. Positioned as a reliable solution for industries requiring high uptime, such as manufacturing, mining, and utilities, the relay enhances system safety by preventing costly motor failures and reducing maintenance burdens.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | O3EEb HENF318176R1 |
| Manufacturer | ABB |
| Product Type | Electronic Overload Relay |
| Rated Current Range | 0.1–6.3 A (adjustable) |
| Voltage Supply | 24–240 VAC/VDC (universal input) |
| Protection Functions | Overload, phase loss, phase reversal |
| Trip Class | Class 10 (standard motor protection) |
| Communication Interface | Modbus RTU (optional add-on) |
| Operating Temperature | -25°C to +60°C |
| Dimensions (W×H×D) | 45 mm × 85 mm × 62 mm |
| Mounting Method | DIN rail (TS 35/7.5 or TS 35/15) |
| Certification | CE, UL, CSA, IEC 60947-4-1 |
O3EEb HENF318176R1
Main Features and Advantages
The ABB O3EEb HENF318176R1 distinguishes itself through its advanced protection algorithms and user-centric design. Its adjustable current sensing range (0.1–6.3 A) allows precise calibration for various motor sizes, ensuring optimal protection without false tripping. The relay’s phase monitoring capabilities detect imbalances or reversals, critical for preventing motor damage in three-phase systems, while its thermal memory function mimics motor heating characteristics for accurate overload detection.
A key advantage is the relay’s intuitive interface, featuring LED indicators for fault status and easy-to-use adjustment dials for setting current and trip parameters. This simplifies commissioning and reduces setup time, even in complex multi-motor systems. The optional Modbus RTU communication interface enables integration with supervisory control and data acquisition (SCADA) systems, allowing remote monitoring and predictive maintenance—an invaluable feature for centralized plant management.
The relay’s rugged construction, with a wide temperature range and shock resistance, ensures reliability in harsh environments, from dusty factories to outdoor installations. Its compact footprint saves space in control panels, while the DIN rail mounting facilitates quick installation and replacement.
Application Field
The ABB O3EEb HENF318176R1 is ideally suited for industries reliant on motor-driven processes, including food and beverage production, water and wastewater treatment, and oil and gas refining. In manufacturing, it protects conveyor belts, mixers, and packaging machinery by detecting overloads caused by jams or material buildup, preventing costly equipment damage and production delays. In utility sectors, the relay safeguards pumps and generators in power plants, ensuring continuous operation during peak demand periods.
For small to medium-sized motors in commercial applications, such as HVAC systems or elevator drives, the O3EEb HENF318176R1 offers affordable yet robust protection against voltage fluctuations and mechanical stress. Its compliance with international safety standards makes it a global solution for companies adhering to strict regulatory requirements, such as ISO 4414 or IEC 60204.
By addressing the primary causes of motor failure—overheating, phase issues, and overload—the relay helps customers extend equipment lifespan, reduce energy consumption, and improve overall system efficiency. Its versatility and precision make it a trusted choice for both new installations and retrofits of legacy motor control systems.
O3EEb HENF318176R1
Related Products
- ABB O3SE HENF318175R1: A solid-state overload relay with similar functionality but designed for higher current ranges (1–10 A), suitable for larger motors.
- ABB O3EB HENF318177R1: A basic electronic overload relay without communication capabilities, ideal for cost-sensitive applications.
- ABB PM500V: A motor protection and control unit that integrates with the O3EEb HENF318176R1 for advanced analytics and remote monitoring.
- ABB TA25DU: A thermal overload relay (non-electronic) for simpler systems, serving as a traditional alternative to the electronic O3EEb series.
- ABB UNITROL 1020: A voltage regulator compatible with the O3EEb for systems requiring coordinated motor and power supply protection.
Installation and Maintenance
Pre-installation preparation: Ensure the ABB O3EEb HENF318176R1 is mounted on a DIN rail in a well-ventilated control panel, away from heat sources. Verify the supply voltage matches the relay’s input range (24–240 VAC/VDC) and connect the motor’s current sensors to the appropriate terminals. Adjust the current setting dial to match the motor’s full-load current, referring to the datasheet for calibration guidelines.
Maintenance recommendations: Regularly inspect the relay for loose connections or physical damage during routine system checks. Use the LED indicators to identify fault conditions (e.g., overload, phase loss) and refer to the troubleshooting guide for resolution. Clean the relay’s housing and terminals to prevent dust accumulation, which can affect thermal performance. For systems with the Modbus interface, periodically update the firmware to access the latest features and ensure compatibility with network upgrades. Replace the relay if it fails to reset after repeated faults or shows signs of electrical degradation.
Product Guarantee
ABB guarantees the O3EEb HENF318176R1 against defects in materials and workmanship for [X years], providing peace of mind for critical applications. The company’s global service network offers 24/7 technical support, including remote diagnostics and on-site assistance, to minimize downtime. Customers can access detailed installation manuals, software tools, and training resources through ABB’s support platforms, ensuring proper integration and optimal performance. By combining high-quality manufacturing with comprehensive after-sales service, ABB reinforces its commitment to delivering reliable, long-lasting motor protection solutions that meet the evolving needs of industrial clients worldwide.
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