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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

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