ETM8L RCCB
ETM8L Series Residual Current Circuit Breaker (RCCB/RCD) is designed to provide reliable protection against electric shock and earth leakage faults in residential, commercial, and industrial electrical systems. It is available in 2-pole, 4-pole, and 1P+N configurations, making it suitable for various installation needs.
Rated Current (In): 25A to 100A
Residual Sensitivity Options: 30mA, 100mA, 300mA
Rated Voltage (Ue): 230/400V to 240/415V AC
Poles Available: 2P, 4P
Ideal for OEM applications, the ETM8L series ensures fast disconnection in the event of leakage currents, enhancing electrical safety across a wide range of environments.
Product Introduction
| Basic features | |||
| Standards | EN/IEC 61008-1,61008-2 | ||
| Certificate | KEMA/DeKra, CE, CB | ||
| Electrical features | |||
| Protection | Residual current | ||
| Rated current in | A | 25, 40, 63, 80, 100 | |
| Rated residual operating current | mA | 30, 100, 300, 500 | |
| Residual current type | AC,A,AC-S,A-S | ||
| Rated voltage Ue | 2P | V | 230, 240 |
| 4P | 400, 415 | ||
| Rated frequency | Hz | 50/60 | |
| Number of poles | P | 2(1+N),4(3+N) pole | |
| Ultimate short-circuit breaking capacity Icu | kA | 6, 10 | |
| Rated insulation voltage Ui | V | 500 | |
| Rated residual current operated making &breaking capacity I△m | A | 500A for 25,40,50A 10In for 63,80,100A | |
| Rated residual non-operated current I △ n | 0.5IDn | ||
| Residual current off-time at IDn | ≤ 0.1s,150~500ms(s type) | ||
| Rated impulse withstand voltage Uimp | kV | 4 | |
| PoIIution degree | 2 | ||
| Type of trip Residual current | Electro-magnetic | ||
| Mechanical features | |||
| Mechanical life | T | 4000 | |
| Electrical life | T | 2000 | |
| Fault current indicator | ℃ | yes | |
| Ambient temperature | ℃ | -25 ～ +55℃ | |
| Installation | |||
| Protection degree | IP20 | ||
| Terminal connection | Pillar terminal with frame | ||
| Terminal capacity | Cables up to 35mm² | ||
| Tighten torque | N·m | 2.5 | |
| Installation | on Din rail EN50022(35mm) | ||
The ETM8L series Residual Current Circuit Breakers (RCCBs) are designed to safeguard people and equipment by detecting leakage currents caused by faults such as direct or indirect contact with live parts, insulation failure, or earth leakage. These devices work by monitoring the current balance between live and neutral conductors—any difference indicates a fault, prompting immediate disconnection.
Ideal for low-voltage distribution systems, ETM8L RCCBs are widely used in industrial plants, commercial spaces, residential buildings, energy infrastructure, and communication systems. They provide comprehensive protection, including leakage detection, circuit isolation, and short-circuit protection. Unlike older ELCB devices, RCCBs detect all forms of earth faults, making them the preferred solution in modern installations. These devices are also known as RCDs (Residual Current Devices) or RCBs (Residual Current Breakers).
Available in double pole (1P+N) and four pole (3P+N) versions
ON/OFF indicator: Red shows ON, Green shows OFF
Test button included for regular function checks
Neutral terminal included for stable operation
IP20 terminal protection: Prevents accidental contact during installation
DIN rail mountable (EN60715, 35mm), easy for panel installation
Ambient operating temperature: -5°C to +50°C
Service Life:
Electrical durability: Up to 8,000 operations
Mechanical endurance: Up to 20,000 operations
(Exceeding IEC standards of 4,000 and 10,000 respectively)
