Product Short Description
Product Overview: Microprocessor-based earth leakage protection relay designed for low-voltage electrical systems, monitoring residual current to detect insulation faults and earth leakage.
Technical Specifications:
- Operating supply voltage: AC 85–264V
Description
- Rated residual current measuring range: 0.03A–30A
- Trip time: Adjustable instantaneous / time-delayed mode
- Operating frequency: 50/60Hz
- Contact rating: 250V AC, 5A resistive load
Feature Highlights:
- Adjustable leakage current threshold
- Manual and automatic reset modes
- LED status indication for fault and power status
- Compatibility with external current transformers
Application Scenarios: Low voltage distribution panels, marine electrical systems, industrial motor circuits, building power distribution
Structure & Material: Flame-retardant ABS housing, DIN rail mounting structure
Installation Requirements: Standard 35mm DIN rail installation; matched with dedicated zero-sequence current transformer
Operation Principle: Measures vector sum of three-phase and neutral current; triggers output contact when residual current exceeds preset threshold
Precautions: Avoid installation adjacent to high-power frequency converters to prevent electromagnetic interference; regular calibration of current detection loop
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