Core Capabilities
Key Features
Three-Stage Intelligent Protection
Provides electronically adjustable long-delay, short-delay, and instantaneous protection for accurate fault response.
Integrated Power Metering
Supports real-time measurement of three-phase voltage, current, active power, reactive power, apparent power, and...
Voltage and Frequency Safeguards
Includes overvoltage, undervoltage, overfrequency, underfrequency, phase loss, and phase sequence protection functions.
Remote Operation Capabilities
Supports four remote functions via RS485 for telemetry, remote control, remote adjustment, and status...
Product Brief
Overview
The TDK4EJ Smart Metering MCCB is designed for low-voltage distribution projects that require both reliable circuit protection and continuous electrical parameter visibility. Built for AC400/50Hz systems, it covers a frame current range of 250A to 630A in a 3P structure and complies with IEC60947-2.
- Three-Stage Intelligent Protection
- Integrated Power Metering
- Voltage and Frequency Safeguards
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.
- Use when your project requires a 3P smart MCCB in the 250A-630A frame range with integrated metering.
- Select for applications needing adjustable electronic protection and remote operation through RS485.
- Verify required communication architecture early to decide whether optional carrier, Bluetooth, or 4G modules are needed.
Technical Data
Technical Specs
| Rated Operating Voltage | AC400/50Hz |
|---|---|
| Poles | 3P |
| Frame Current Range | 250A-630A |
| Standard | IEC60947-2 |
| Protection Type | Three-stage, electronically adjustable |
| Communication | RS485 (carrier/Bluetooth/4G optional) |
| Rated Insulation Voltage | 1000V |
| Rated Impulse Withstand Voltage | 8kV |