ETL1-63B Type B Residual Current Circuit Breaker (RCCB) – Advanced DC & AC Le...
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| Product Family ID | OS-ETK-ETL1-63B |
|---|---|
| Variant SKU Count | 5 |
| Supplier | ETK |
| Supplier Model | ETL1-63B |
| Product Type | RCCB |
| Available Current Ratings | 16A / 25A / 32A / 40A / 63A |
| Available Voltage Ratings | 1P+N:230/240V~,3P+N:400/415V~ |
| Rated Voltage | 1P+N:230/240V~,3P+N:400/415V~ |
| Rated Current | 16A / 25A / 32A / 40A / 63A |
| Protection Degree | IP20 |
| Operating Temperature | -25°C ~ +40°C |
| Poles | 1P+N,3P+N, N Pole on the right |
| Protection Degree | IP20 |
| Rated Current | 16,25,32,40,63A / 16A / 25A / 32A / 40A / 63A |
| Rated Voltage | 1P+N:230/240V~,3P+N:400/415V~ |
| System Voltage | 1P+N:230/240V~,3P+N:400/415V~ |
Product Overview
Type B RCCB in 5 current ratings from 16A to 63A in 2-pole and 4-pole configurations for circuits with solar inverters, EV chargers, and power electronics that produce DC leakage components. Type B detection at the main RCCB position provides whole-board protection regardless of the load mix downstream.
Some European countries require Type B residual current protection on circuits fed by transformerless solar inverters. The 4-pole version covers three-phase main positions in boards serving three-phase commercial loads.
Type B RCCB detects all residual current waveforms including smooth DC components that a standard Type AC device cannot detect. When replacing an existing Type AC RCCB in a solar installation, the relevant wiring standard may require upgrading to Type B — confirm with the local authority having jurisdiction before substituting a different type.
Applications
Inverter output protection
AC distribution boards
EV and PV support circuits
Residential and commercial electrical BOS
Frequently Asked Questions
Is Type B RCCB required for solar inverter circuits?
Requirements vary by market. Some European countries (Germany, Austria, Switzerland) require Type B on circuits fed by transformerless PV inverters. Check the local grid connection requirements and applicable low-voltage installation standard for the project market.
Can ETL1-63B replace ETL1-63 in an existing installation?
Yes — Type B is a functional superset of AC Type. Physical dimensions should be confirmed against the existing cutout. ETL1-63B provides the same protection as ETL1-63 plus pulsating and smooth DC detection, making it a safe upgrade with no functional downside.
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