HT Instruments Combi 521EV Multifunction Electrical Installation Tester
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HT Instruments Combi 521EV is a multifunction electrical installation and EVSE safety tester with power quality analysis, auto-sequence testing, and onboard data logging.
Product details
| Model | Combi 521EV |
| Manufacturer | HT Instruments |
| Category | Electrical Testers |
| Availability | Made to order |
Description
Overview
The HT Instruments Combi 521EV is a comprehensive multifunction safety tester designed for electrical installation verification and EVSE (Electric Vehicle Supply Equipment) testing. The device combines electrical system testing with power quality analysis and features an innovative AUTO function for sequential testing, making it ideal for technicians conducting safety verification and commissioning work in compliance with IEC/EN 61557-1 standards.
Key Features
- Auto-sequence test function for streamlined testing workflows
- Compliance verification with IEC/EN 61557-1 standards
- Continuity and insulation resistance testing with PI and DAR calculation
- Earth resistance and RCD testing for Type A, AC, B, and selective devices
- Phase sequence and conformity measurements
- Power quality analysis: voltage, current, power factor, power, and harmonics
- Environmental parameter measurement (temperature, illuminance)
- Internal memory for up to 65,000 readings with PC/USB transfer
- HTAnalysis App for iOS/Android data transfer and customization
- HTCloud integration for sharing test results
Automatic EVSE Safety Testing
- Output voltage verification
- Protective conductor continuity check
- Insulation resistance measurement
- Vehicle detection status (A, B, C, D) verification
- Mechanical interlock verification
- Protective conductor fault simulation (fault PE)
- CP signal fault testing (fault E)
- Global earth resistance measurement
- RCD tripping time measurement for Type A, B, and DD 6mA devices
Electrical Installation Testing Capabilities
- Protective conductor continuity with 200mA test current
- Insulation resistance up to 1000V with DAR and PI calculations
- Polarity testing and phase sequence verification
- MCB and fuse coordination analysis
- Line/Fault impedance measurement and prospective fault current calculation
- Leakage current measurement on electrical systems
Applications
- Electrical installation safety verification and commissioning
- EV charging station (EVSE) safety testing and compliance
- Preventive maintenance on electrical systems
- Compliance verification for IEC/EN standards
- Power quality diagnostics in single-phase installations
Specifications
| Battery Type | 6x1.5V alkaline batteries type AA IEC LR06 |
| Height | 75 mm |
| Includes | Combi 521EV, EV-Test 100, Shuko plug, Test cables (3), Alligator clips (3), Test leads (3), Stylus, Carry Case, User manual and short guide, Calibration report, Manuals/Guides |
| Length | 225 mm |
| Operating Temperature | 0 to 40°C |
| Product Type | Multifunction Instrument |
| Storage Temperature | -10 To 60°C |
| Width | 165 mm |
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HT Instruments Combi 521EV Multifunction Electrical Installation Tester
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