At6BS Product Details - At6BS
At6BS Circuit Breaker Main View
1P View
2P View
3P View
4P View

At6BS Miniature Circuit Breaker

High-performance protection for residential and commercial applications.

Standard Compliance
IEC/EN 60898-1
Poles Configuration
1P, 2P, 3P, 4P
Rated Current
6A - 63A
Rated Frequency
50/60 Hz
Short Circuit Capacity
6 kA
Working Voltage
1P: 230/400V AC
2/3/4P: 400V AC
Trip Characteristic
Type B, C, D
Mechanical Life
10,000 operations
Electrical Life
4,000 operations
DB6L Technical Specifications

At6BS Miniature Circuit Breaker Specifications

General Information
ModelAt6BS
Number of Poles1P, 1P+N, 2P, 3P, 3P+N, 4P
Electrical Specifications
Rated Current (In)6A - 63A
Rated Working Voltage (Ue)1P: 230/400V~
2P/3P/4P: 400V~
Rated Insulation Voltage (Ui)500 V
Rated Impulse Withstand Voltage (Uimp)6 kV
Dielectric Test Voltage2 kV
Instantaneous Release TypeB, C, D
Residual Current Working TypeB, C, D
Residual Current Protection Type440
Mechanical Performance & Life
Mechanical Life10,000 operations
Electrical Life4,000 operations
Accessories & Indicators
Shunt Release (SHT)/
Under Voltage Release (UVT)/
Auxiliary Contact (AUX)/
Alarm Contact (ALT)/
Contact Position Indicator/
Fault Indication/
Environment & Installation
Operating Temperature-5℃ ~ +40℃ (Daily average ≤ 35℃)
Storage Temperature-25℃ ~ +70℃
Degree of Protection (IP Code)IP40 (Enclosure), IP20 (Terminals)
Pollution Degree30
Reference Temperature for Thermal Element2℃
Connection Wire Cross-section1 - 16 mm²
Busbar Cross-section25 mm²
Installation MethodCable / Busbar
Connection DirectionTop or Bottom entry permitted