ETL3-63B B Type RCBO Advanced Residual Current Circuit Breaker with Overload ...
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Technical Data
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| Product Family ID | OS-ETK-ETL3-63B |
|---|---|
| Variant SKU Count | 9 |
| Supplier | ETK |
| Supplier Model | ETL3-63B |
| Product Type | RCBO |
| Available Current Ratings | 10A / 16A / 20A / 25A / 32A / 40A / 50A / 63A / 6A |
| Available Voltage Ratings | 230/240V |
| Rated Voltage | 230/240V |
| Rated Current | 10A / 16A / 20A / 25A / 32A / 40A / 50A / 63A / 6A |
| Protection Degree | IP20 |
| Operating Temperature | -25°C ~ +55°C, Max.95% humidity |
| Poles | 1P+N |
| Protection Degree | IP20 |
| Rated Current | 6, 10, 16, 20, 25, 32, 40, 50, 63A / 10A / 16A / 20A / 25A / 32A / +4 more |
| Rated Voltage | 230/240V |
| System Voltage | 230/240V |
Product Overview
Alternative Type B RCBO family for 6A-63A single-phase circuits with combined residual current and overcurrent protection. Nine current variants cover standard residential and light commercial ratings. ETL3-63B is the ETK ETL product line equivalent to EKL5-63B for installations where the physical housing dimensions or accessory options differ.
Type B detection covers AC, pulsating DC, and smooth DC leakage — the full requirement for inverter, charger, and drive circuits. Select between ETL3-63B and EKL5-63B based on the installation panel dimensions and accessory availability.
Three-phase Type B RCBO provides balanced residual current protection for three-phase string and central inverters. In three-phase systems, a single-phase RCBO may not detect an unbalanced fault on one phase — always specify 3-phase or 4-pole RCBO for three-phase inverter AC output circuits.
Applications
Inverter output protection
AC distribution boards
EV and PV support circuits
Residential and commercial electrical BOS
Frequently Asked Questions
How does ETL3-63B differ from EKL5-63B?
Both provide Type B RCBO protection in single-phase. ETL3-63B covers 9 current variants versus 18 for EKL5-63B, and may differ in housing dimensions, DIN rail width, or accessory interface. Share the panel drawing and we recommend which family physically fits.
Can Type B RCBO replace an existing Type A in the same position?
Yes — Type B is a functional superset of Type A. The physical dimensions must match the existing cutout. Type B provides the same protection as Type A plus smooth DC detection, with no functional downside.
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