125A 1P AC Miniature Circuit Breaker
This 125A AC miniature circuit breaker is a single-pole (1P) device suitable for both domestic and industrial use. It provides reliable protection against overcurrent and short-circuit faults with a 10kA breaking capacity.





Technical Specifications
Product Overview
High-Performance Protection
The CKDB11 series Miniature Circuit Breaker provides robust overload and short-circuit protection for terminal distribution systems. Designed for demanding environments including public infrastructure, industrial facilities, and power stations, this device ensures operational safety and reliability. It features clear contact indicators and finger-protected terminals, making it a secure choice for professional electrical installations.
Electrical Specifications
- Rated Current
- 125 A
- Rated Voltage
- 230 / 400V
- Operating Frequency
- 50/60Hz
- Short-Circuit Breaking Capacity (Icu/Ics)
- 10 kA
- Impulse Withstand Voltage (Uimp)
- 8 kV
Design & Compliance
Utilization Category
- Number of Poles
- 1
- Compliance Standards
- GB 10963.1IEC/EN 60898-1GB 14048.2IEC/EN 60947-2
Key Features
Safety Features
- Finger protection on wiring terminals
- Contact closing/opening indicators
- Modular accessory compatibility
- Overload protection
- Short-circuit protection
Applications
Suitable Applications
- Public constructions (Schools, Hospitals, Offices)
- Railway and Subway Systems
- Power Stations and Renewable Energy
- Petrochemical and Steel Industries
- Shipment and Airports



