AEG BKF101
Product Name: AEG BKF101 Miniature Circuit Breaker (MCB)
Model Series: BKF Series
Product Type: Single-Pole Miniature Circuit Breaker
Standard Compliance: IEC 60898-1, EN 60898-1, VDE 0641-11
Product Overview:
The AEG BKF101 is a compact single-pole miniature circuit breaker designed for final circuit protection in residential and commercial low-voltage distribution boards. It provides overload and short-circuit protection for lighting and socket circuits.
Detailed content
Technical Specifications:
- Rated Current (In): 1 A
- Poles: 1P (Single Pole)
- Rated Voltage (Ue): 230/400V AC
- Rated Short-Circuit Breaking Capacity (Icn): 6 kA
- Rated Ultimate Breaking Capacity (Icu): 6 kA
- Trip Curve: Curve C (trips at 5× to 10× In for short-circuit)
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations at rated current
- Operating Temperature Range: -25°C to +70°C
- Dimensions (W×H×D): 18 mm × 85 mm × 65 mm
- DIN Rail Mounting: 35 mm standard TH35 rail
Material Composition:
- Housing: Flame-retardant polyamide PA66 (UL94 V-0 rated)
- Contacts: Silver alloy (AgSnO₂) for arc resistance
- Arc Chute: Stainless steel de-ion plates
- Terminals: Tin-plated copper alloy, screw terminal type
- Trip Mechanism: Bimetallic thermal element + electromagnetic solenoid
Structural Features:
- Modular 1-pole width (17.5 mm)
- Visual toggle indicator: green = ON, red = OFF/TRIPPED
- Screw-clamp terminals for solid and stranded conductors up to 25 mm²
- Clip-on DIN rail attachment with snap-in/snap-out capability
Working Principle:
- Overload Protection: Bimetallic strip bends when current exceeds rated value for sustained duration, triggering mechanical release.
- Short-Circuit Protection: Electromagnetic solenoid activates instantly when current exceeds 5–10× In, forcing immediate contact separation.
- Arc Extinction: Arc chute splits and cools the arc plasma, enabling safe interruption at 6 kA.
Key Advantages:
- Curve C characteristic suitable for mixed residential loads (lighting + small appliances)
- 6 kA breaking capacity meets all European residential requirements
- Compact 1-pole design saves space in distribution boards
- VDE and CE certified for European market compliance
Applicable Industries:
- Residential building electrical installations
- Commercial office lighting circuits
- Small retail socket circuits
- Control panel final circuit protection
Installation Requirements:
- Mount on 35 mm DIN rail (EN 60715)
- Torque terminal screws to 2.5 Nm
- Maximum conductor cross-section: 25 mm² (copper) / 16 mm² (aluminum)
- Must be installed by a qualified electrician per local electrical code
Usage Precautions:
- Do not exceed rated current of 1 A — nuisance tripping will occur
- Do not use as a switch for frequent on/off cycling
- Verify tripping after installation using test button
- Replace immediately after any short-circuit fault — internal contacts may be welded












