Earth Leakage Circuit Breaker (ELCB)
This earth leakage circuit breaker (ELCB) immediately cuts off faulty circuits in the event of shock hazards or earth leakage. It is available in 2-pole and 4-pole configurations.




Technical Specifications
Overview
Safety and Protection
The 306 series Earth Leakage Circuit Breaker (ELCB) is engineered to provide critical protection against shock hazards and earth leakage faults. By immediately cutting off the circuit during a fault, it effectively prevents electrical accidents and potential fires caused by persistent leakage currents. This device is designed for reliability, featuring oxygen-free copper contacts with silver content and an independent contact position indicator for enhanced operational safety.

Technical Specifications
- Rated Voltage
- 240/415 V
- Rated Network Frequency
- 50 Hz
- Ultimate Breaking Capacity
- 4.5 kA
- Mechanical Endurance
- 2500 cycles
- Max Conductor Cross-section
- 25 mm²
- Operating Temperature Range
- -25 to +50 °C
- Trip Time
- <0.1s
Configuration Options
Available Poles
Rated Current Options
- 16
- 25
- 32
- 40
- 63
- 100
Rated Residual Operating Current
- 30
- 100
- 300
- 500
Features
- Key Features
- Oxygen-free copper contactsSilver content contactsComb-busbar compatibleU-shaped busbar compatibleIndependent contact indicatorIntegrated TEST buttonNotched contact clamps



