Core Capabilities
Key Features
Residual Current + Overcurrent Protection
Combines leakage protection with electronically adjustable overload and short-circuit protection for comprehensive fault coverage.
Adjustable Leakage Parameters
Supports continuous setting of residual current and delayed/non-delayed tripping behavior to fit different protection...
Automatic Reclosing Support
Provides configurable auto-reclosing timing to reduce downtime after transient fault conditions.
Electrical Parameter Monitoring
Offers real-time visibility of voltage, current, and key power parameters for operational diagnostics and...
Product Brief
Overview
The TDK4ELJ Smart Metering MCCB is intended for applications where both intelligent protection and leakage-current management are required in the same breaker platform. Operating at AC400/50Hz and available in 250A to 630A frame sizes, it provides an integrated set of protection capabilities including three-stage electronic trip logic, residual...
- Residual Current + Overcurrent Protection
- Adjustable Leakage Parameters
- Automatic Reclosing Support
Selection
Selection / Use Cases
Use this MCCB when:
Leakage Monitoring
Suitable for systems requiring residual current protection and status visibility.
Remote Communication
Supports RS485-based integration for panel and facility monitoring.
Adjustable Protection
Built for load coordination environments that need configurable trip settings.
- Choose when project requirements include both leakage protection and smart metering in one MCCB device.
- Confirm residual current sensitivity and delayed/non-delayed logic according to personnel and equipment protection targets.
- Use in systems that require 4P or 3P+N coordination and remote supervision via RS485.
Technical Data
Technical Specs
| Rated Operating Voltage | AC400/50Hz |
|---|---|
| Poles | 4P, 3P+N |
| Frame Current Range | 250A-630A |
| Standard | IEC60947-2 |
| Residual Current Type | AC type |
| Rated Residual Current Range | 30mA-1000mA, continuously adjustable |
| Auto Reclosing Time | 20-60s |
| Communication | RS485 |