ABB 3BHE043536R0001 Earth Isolator

Description

Technical Specifications

Core Isolation & Electrical Performance

• Isolation Voltage: 6 kV AC (continuous), 8 kV DC (peak)
• Isolation Type: Linear optocoupler‑based galvanic isolation
• Locking Feedback: Integrated mechanical‑electrical locking mechanism with status output
• Input Signal Range: 0–10 V DC / 4–20 mA (analog), 24 V DC (digital)
• Output Signal: Isolated 24 V DC digital feedback (0.5 A)
• Auxiliary Power Supply: 24 V DC (nominal), 18–30 V DC (operating range)
• Power Consumption: 15 W (maximum)
• Response Time: < 5 ms (isolation switching and feedback)
• Dielectric Strength: 10 kV AC for 1 minute (between isolated circuits)
• Insulation Resistance: > 100 GΩ at 500 V DC

Mechanical & Physical Characteristics

• Dimensions: 280 mm × 180 mm × 100 mm
• Weight: 5.5 kg (net)
• Mounting: Panel/rack mounting (compatible with ABB switchgear and drive cabinets)
• Enclosure Material: Reinforced industrial plastic with metal mounting brackets
• Protection Rating: IP20 (enclosed), IP40 (with optional cover)
• Conformal Coating: Applied for resistance to dust, moisture, and chemical contaminants

Environmental & Reliability

• Operating Temperature: -25 °C to +70 °C
• Storage Temperature: -40 °C to +85 °C
• Humidity: 5%–95% RH, non‑condensing
• Vibration Resistance: IEC 60068‑2‑6 (5–500 Hz, 15 g rms)
• Shock Resistance: IEC 60068‑2‑27 (75 g, 11 ms)
• MTBF: Exceeds 150,000 hours under rated conditions
• Lifespan: Designed for 20+ years of continuous industrial operation
• Certifications: CE, UL, CSA, RoHS, IECEx (hazardous area compatible)
• Standards: IEC 60947‑7‑1, IEC 61000‑6‑2/6‑3, IEC 60255

Key Features

Superior High‑Voltage Isolation

• 6 kV Galvanic Isolation: Provides complete electrical separation between high‑voltage power circuits and low‑voltage control systems
• Linear Optocoupler Technology: Ensures accurate signal transmission with zero electrical connection across isolation barriers
• Multi‑Circuit Isolation: Isolates input signals, output circuits, and auxiliary power supplies simultaneously
• Transient Surge Protection: Built‑in surge arresters to withstand high‑voltage spikes up to 10 kV
• Ground Loop Elimination: Prevents circulating currents and noise caused by potential differences between system grounds

Integrated Locking Feedback System

• Mechanical‑Electrical Locking: Ensures physical isolation is confirmed before system energization
• Real‑Time Status Feedback: Provides isolated digital output to indicate lock status (engaged/disengaged)
• Interlock Compatibility: Integrates with safety interlock systems for fail‑safe operation
• Visual Indication: Optional LED indicators for local status monitoring
• Fault Detection: Triggers alarm signals for incomplete locking or isolation failures

Industrial‑Grade Durability

• Extreme Temperature Tolerance: Operates reliably in harsh industrial temperature environments
• Superior Mechanical Strength: Withstands high levels of vibration and shock in heavy industrial settings
• Corrosion Resistance: Rugged construction and conformal coating for protection against industrial contaminants
• Long‑Term Stability: High‑quality components ensure consistent performance over extended service life
• Low Maintenance: Minimal moving parts and robust design reduce maintenance requirements

Seamless System Integration

• Plug‑and‑Play Installation: Direct integration with ABB medium‑voltage switchgear and drive systems
• Universal Compatibility: Works with standard 24 V DC control systems and industrial communication protocols
• Flexible Mounting: Adaptable to panel, rack, or cabinet mounting configurations
• Isolated I/O Interfaces: Simplifies connection to both analog and digital control systems
• Safety Compliance: Meets global safety standards for high‑voltage industrial equipment

Enhanced Safety & Diagnostics

• Fail‑Safe Design: Defaults to isolated state in case of power loss or system failure
• Continuous Health Monitoring: Built‑in diagnostics for isolation integrity and locking mechanism status
• Fault Logging: Records isolation and locking events for maintenance and troubleshooting
• Remote Status Monitoring: Isolated feedback signals enable remote monitoring via control systems
• Safety Interlock Integration: Complies with industrial safety standards for personnel and equipment protection

Application Scenarios

Medium‑Voltage Switchgear & Distribution

• High‑Voltage Switchgear: Primary earth isolation for medium‑voltage switchgear assemblies
• Power Distribution Systems: Isolates high‑voltage distribution circuits from control and monitoring systems
• Substation Equipment: Protects control electronics in power transmission and distribution substations
• Circuit Breaker Interlocks: Provides safe isolation and feedback for high‑voltage circuit breaker systems

Power Generation & Transmission

• Power Plant Auxiliaries: Isolates control systems for boiler feed pumps, fans, and turbine controls
• Wind Turbine Systems: Protects medium‑voltage converter controls in large‑scale wind turbines
• Solar Inverters: Isolates high‑voltage DC and AC circuits in utility‑scale solar installations
• HVDC Systems: Provides critical isolation for high‑voltage direct current transmission equipment

Oil & Gas Industry

• Refinery High‑Voltage Equipment: Isolates control systems for pumps, compressors, and process equipment
• Offshore Platforms: Ensures safe operation in harsh offshore environments with high vibration and corrosion
• Pipeline Pumping Stations: Protects drive control systems for long‑distance oil and gas pipelines
• LNG Facilities: Isolates high‑voltage equipment in liquefaction and regasification processes

Mining & Heavy Manufacturing

• Mining Conveyor Drives: Isolates control systems for high‑power mining conveyor drives
• Crushers & Grinding Mills: Protects control electronics in ore processing equipment
• Steel Rolling Mills: Provides isolation for medium‑voltage drive systems in metal processing
• Cement Kilns & Mills: Ensures safe operation in high‑dust, high‑temperature cement production

Industrial Drive Systems

• ABB Medium‑Voltage Drives: Primary isolation module for ACS 1000/2000/5000 series drives
• High‑Power Motor Controls: Isolates control circuits for large industrial motors and variable speed drives
• Drive System Retrofits: Upgrades isolation capabilities for legacy medium‑voltage drive systems
• Marine Propulsion: Protects control systems for large marine propulsion drives

General Industrial Applications

• Chemical Processing: Isolates high‑voltage equipment in chemical reactors and process lines
• Water Treatment: Protects control systems for high‑power pumps and filtration equipment
• Material Handling: Ensures safe operation for cranes, hoists, and heavy material handling systems
• Waste Management: Isolates control electronics in waste incineration and recycling equipment