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CR.400A

The CR.400A is a high-current contact resistance tester designed in compliance with IEC 62271 standards for testing circuit breaker contact resistance and high-current cable joints. With selectable DC test currents up to 400 A, the CR.400A provides reliable and precise measurements in both field and laboratory applications.

Equipped with a built-in printer and PC connectivity, the CR.400A enables immediate onsite reporting and easy data transfer to a computer for generating professional test reports. Lightweight, portable, and simple to operate via its LCD touchscreen, the CR.400A is well suited for utilities and maintenance teams requiring fast, accurate results.

Function

• Contact resistance measurement of circuit breakers and cable joints
• Output DC test currents: 400 A, 300 A, 200 A, 100 A, 50 A
• Measurement range from 0 to 1999.9 μΩ with 0.1 μΩ resolution
• Integrated printer for onsite reporting
• Data storage for up to 100 test records
• PC connectivity for uploading and report generation
• Compact, lightweight, and easy-to-use design with touchscreen interface

Technical Specifications

measurement range

  • 0–1999.9 μΩ

resolution

  • 0.1 μΩ

test current

  • DC 400 A, 300 A, 200 A, 100 A, 50 A

accuracy

  • Maximum error: < 0.5 % RDG + 0.05 % FS

display

  • LCD touchscreen

data storage

  • Up to 100 groups of results

interfaces

  • RS232 computer interface

  • USB for PC connectivity and report generation

printer

  • Built-in micro-printer for test results

power supply

  • AC 220 V

dimensions

  • 450 × 250 × 350 mm

weight

  • < 12 kg

operating conditions

  • Temperature: -10 °C to +40 °C

  • Relative humidity: < 80 %

Key Features

  • High-current DC testing up to 400 A

  • Resolution down to 0.1 μΩ

  • Built-in printer for immediate test results

  • PC data upload via USB for MS Word reports

  • Lightweight and portable (<12 kg)

  • Touchscreen operation for ease of use

  • Fully compliant with IEC 62271

Standard Accessories

  • CR.400A tester unit

  • 8 m test cable set

  • Power supply cable

  • Instruction manual

  • Software disk

  • Carrying case

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