4 amp 1 pole Miniature Circuit Breaker

Single pole miniature circuit breaker is ideal for the protection of circuits in industrial, commercial, and residential sectors, and ensures the following functions: Protection against short-circuit and overload currents, isolation, and protection of persons against indirect contact.

Single Pole MCB Breaker Information

• Rated Current: 4 A
• Rated Voltage: 230/400V AC, 50Hz
• Number of poles: 1 pole
• 6 kA rated short-circuit breaking capacity
• Compliant with IEC standard
• C curve trip characteristic
• With overload protection and short circuit protection function

Technical Data

Single Pole MCB Breaker Dimension (Unit: mm)

Details

Tips: How to maintain the single pole miniature circuit breaker?

Single pole miniature circuit breakers (MCBs) are crucial for protecting electrical circuits from overloads and short circuits. Regular maintenance ensures their reliability and safety. Here are some essential steps for mini circuit breaker maintenance:

• Visual Inspection: Regularly inspect the MCB for signs of damage, wear, or overheating. Look for burn marks, discoloration, or any physical defects.
• Testing Functionality: Periodically test the micro circuit breaker by pressing its test button (if equipped). This ensures the breaker trips as expected during an overload or short circuit.
• Tightening Connections: Loose connections can cause arcing or overheating. Check the terminal screws for tightness and secure any loose connections.
• Cleaning: Dust and debris can interfere with the MCB’s function. Use a dry cloth or compressed air to clean the breaker and surrounding areas.

Replace Worn Components: If the MCB switch is tripping frequently or showing signs of wear, replace it to maintain safety standards.