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AEG E81 U4A is a single-pole miniature circuit breaker designed for low-voltage protection. It is widely used in control panels, distribution boards, and industrial automation systems to protect electrical circuits from overload and short-circuit faults. Technical Specifications Product type: Miniature Circuit Breaker (MCB) Manufacturer: AEG Model number: E81 U4A Poles: 1-pole (single phase) Rated current (In): 4 A Rated voltage (Un): 240 V AC (single-phase) / 415 V AC (three-phase system compatibility) Frequency: 50/60 Hz Breaking capacity: 6 kA (typical for this series) Trip characteristic: Thermal-magnetic protection (curve B/C depending on version) Connection type: Screw terminal for copper conductors Conductor size: 1.5–6 mm² recommended Mounting: DIN rail 35 mm standard Housing material: Flame-retardant thermoplastic Switching indicator: ON/OFF toggle with visible status Standards: IEC/EN 60898-1 compliance Operating temperature: -5 °C to +40 °C Storage temperature: -25 °C to +70 °C Insulation voltage: 500 V Dielectric strength: 2 kV between open contacts Dimensions (H×W×D): approx. 80 × 18 × 70 mm Weight: approx. 120 g Applications: Circuit protection for lighting, small motor loads, control circuits, and auxiliary equipment Country of manufacture: Germany Please review pictures carefully and let us know if you have any questions!
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