ABB O3EHA HENF315087R2

Description

Product Description

Product Parameters

• Operating Voltage: 24V DC/AC, 110V AC, 230V AC (selectable variants)
• Contact Configuration: 3 NO (Normally Open) standard configuration, customizable contact options
• Contact Rating: 10A @ 250V AC, 10A @ 30V DC (resistive load)
• Switching Frequency: Up to 10 operations per second (continuous duty)
• Isolation Rating: 4kV AC between coil and contacts, reinforced electrical isolation
• Operating Temperature: -40°C to +70°C, wide temperature tolerance for extreme environments
• Mechanical Life: ≥10 million operations (mechanical)
• Electrical Life: ≥1 million operations (at full rated load)
• Mounting Type: 35mm standard DIN-rail mounting, panel mount optional
• Protection Class: IP20 (front), IP40 (housing) for dust and debris resistance
• Certifications: CE, UL, CSA, IEC 60947-5-1 compliant for global industrial use
• Coil Power Consumption: ≤5W (24V variant), low power draw for energy efficiency

Advantages and Features

1. Rugged Industrial Construction: ABB O3EHA HENF315087R2 is built with industrial-grade thermoplastic housing and silver-plated copper contacts, ensuring resistance to vibration, shock, and corrosion in factory floor, power plant, and outdoor industrial settings.
2. Seamless ABB Ecosystem Compatibility: The module integrates directly with ABB’s MS series motor starters, PST soft starters, and AC 500 PLCs, eliminating compatibility gaps and simplifying system design for unified control solutions.
3. High Reliability and Long Service Life: With a mechanical life of over 10 million operations and silver-plated contacts for low contact resistance, ABB O3EHA HENF315087R2 delivers consistent performance and reduces the need for frequent component replacement, lowering total cost of ownership.
4. Easy Installation and Maintenance: Pluggable terminal blocks and tool-less DIN-rail mounting enable quick installation and hot-swappable replacement, while clear contact labeling and status indicators streamline troubleshooting and maintenance tasks.
5. Wide Environmental Tolerance: The module operates reliably in temperatures from -40°C to +70°C and resists EMI/RFI interference, making it suitable for use in high-electrical-noise environments such as metal fabrication and power distribution facilities.
6. Enhanced Safety Features: Built-in thermal protection prevents coil overheating, and IP-rated housing protects internal components from dust and accidental contact, meeting strict industrial safety standards.

Application Fields & Application Cases

Core Application Fields

• Motor control centers (MCCs) for industrial machinery and pump systems
• Power distribution and switchgear in commercial and industrial buildings
• Process automation (chemical, food & beverage, pharmaceutical) for valve and actuator control
• Renewable energy systems (solar/wind) for inverter and battery bank control
• Infrastructure (water/wastewater treatment, transportation) for critical interlocking circuits

Typical Application Cases

1. Industrial Motor Control Center: A large automotive manufacturing plant in Europe integrated ABB O3EHA HENF315087R2 into its motor control centers to manage switching for conveyor belt and assembly line motors. The module’s high contact rating and vibration resistance ensured reliable operation in the high-noise, high-vibration factory environment, while seamless integration with ABB’s soft starters reduced motor startup stress and extended equipment life. The plant reported a 30% reduction in unplanned downtime for motor control circuits after implementation.
2. Municipal Water Treatment Plant: An Asian water treatment plant used ABB O3EHA HENF315087R2 to control chemical dosing pumps, aeration blowers, and valve actuators in its wastewater treatment process. The module’s wide temperature tolerance and EMI resistance allowed reliable operation in outdoor pump houses and near high-voltage equipment, while its fast switching speed ensured precise control of chemical dosing levels. The plant achieved a 20% improvement in process efficiency and reduced chemical waste by 15%.
3. Solar Farm Inverter Control: A North American utility-scale solar farm deployed ABB O3EHA HENF315087R2 in its inverter control systems to switch between grid-tied and off-grid operation modes. The module’s low power consumption and high isolation rating made it suitable for outdoor solar farm environments, while its compatibility with ABB’s SCADA systems enabled remote monitoring and control of inverter operations. The solar farm saw a 25% reduction in control circuit failures and improved grid connection reliability.

Comparison with Competing Products

Selection Suggestions

1. Load and Voltage Matching: Select ABB O3EHA HENF315087R2 for control circuits with resistive loads up to 10A and operating voltages of 24V/110V/230V AC/DC; for higher inductive loads, pair the module with ABB’s surge suppression diodes/varistors.
2. Environmental Considerations: Prioritize this module for outdoor, high-vibration, or high-EMI industrial environments (e.g., mining, renewable energy, metal fabrication) due to its -40°C to +70°C temperature range and EMI shielding.
3. Ecosystem Compatibility: Choose ABB O3EHA HENF315087R2 if your system already uses ABB motor starters, soft starters, PLCs, or MCCs to eliminate integration issues and simplify system programming/commissioning.
4. Space and Installation Requirements: Opt for this module for compact panel setups, as its DIN-rail mounting and pluggable terminals save panel space and enable fast installation compared to bulkier hard-wired relay options.
5. Reliability and Longevity Needs: Select ABB O3EHA HENF315087R2 for critical control circuits (e.g., safety interlocks, emergency stop systems) where high mechanical/electrical life and minimal downtime are essential.

Precautions

1. Voltage Selection: Ensure the coil voltage of ABB O3EHA HENF315087R2 matches the system’s control voltage (24V/110V/230V AC/DC) to avoid coil burnout or insufficient switching power.
2. Load Type Consideration: For inductive loads (e.g., motors, solenoids), install a surge suppression device (diode/varistor) across the coil to protect ABB O3EHA HENF315087R2 from voltage spikes during load disconnection.
3. Wiring Specifications: Follow ABB’s wiring guidelines for terminal connections; use appropriately sized copper cables (minimum 1.5mm²) and ensure tight terminal crimps to prevent loose connections and overheating.
4. Mounting and Ventilation: Mount ABB O3EHA HENF315087R2 on a 35mm DIN rail with a minimum of 10mm clearance on all sides for ventilation; avoid mounting near heat-emitting equipment (e.g., drives, transformers) to prevent overheating.
5. Environmental Protection: Do not expose ABB O3EHA HENF315087R2 to direct water spray or excessive humidity (beyond 95% non-condensing); use a protective enclosure for outdoor installations in rainy or coastal environments.
6. Maintenance and Inspection: Regularly inspect contact terminals for wear, corrosion, or overheating; replace ABB O3EHA HENF315087R2 if contact resistance exceeds 100mΩ or if mechanical switching becomes sluggish.
7. Safety Compliance: Ensure ABB O3EHA HENF315087R2 is used in accordance with its IEC 60947-5-1 certification; do not use the module for safety-related circuits without additional independent safety components (per SIL/PL requirements).

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