Product Overview
This restricted short-circuit test device is designed to verify the compatibility of protective grounding conductors and overcurrent protection devices (rated ≤25A) with fault currents up to 1500A, and to assess the integrity of supplementary safety protections.

It complies with Clause 5.6.4.1, 5.6.5.1, and Appendix R of IEC 62368-1:2018, EN 62368-1:2019, and GB 4943.1-2022, applicable to audio, video, information, and communication technology equipment.

Working Principle
The system uses an energy storage device to generate instantaneous high-current outputs. Discharge time and initial voltage are adjustable. After each discharge, the unit auto-recharges for subsequent tests. Discharge current is recorded and displayed as a current-time curve.

Key Features

• Complies with IEC 62368-1, EN 62368-1, and GB 4943.1-2022

• 15-inch color touch LCD with built-in thermal printer

• High-precision sensors and 14-bit AD conversion

• User-friendly keyboard and touchscreen operation

• Supports automatic/manual current ramp and fast-break tests

• Real-time current and time monitoring

• Overcurrent protection with adjustable current and timing limits

• Grounding and zero-return detection for safe operation

• Smart current control with auto-zeroing and alarms

• Robust anti-interference design for harsh environments

• Optional remote communication, door interlock, and voltage verification interfaces

Technical Specifications

• Control System: PLC + touchscreen HMI

• Test Stations: 1

• Current Range: <25A

• Max. Current: ≥1500A (customizable)

• Discharge Time: 5–100 ms (adjustable)

• Test Mode: AC/DC switchable

• Discharge Voltage: Customizable

• Timer: Configurable via touchscreen

• Standard Includes: DC power supply, overcurrent protector, 4×3m test cables (2.5 mm²)

• Functions: Adjustable discharge voltage/timing, overvoltage/overcurrent protection

• Safety: Insulated connections, fault alarm system

• Dimensions: 1250mm × 960mm × 1650mm (W×D×H)

• Power Supply: AC 220V, 50Hz