4.9 Based on 1156 reviews 
Description
3 Pole 6A C Curve 10kA Miniature Circuit Breaker
Live Electrical Three Phase MCB – CB306C
The Live Electrical CB306C 3 Pole 6A C Curve 10kA MCB is a dependable choice for protecting commercial 3-phase electrical systems. It features a C Curve tripping characteristic, which makes it ideal for circuits with slightly higher inrush currents, such as motors or transformers.
Additionally, the 10kA breaking capacity ensures reliable protection against high fault currents, making it a versatile and cost-effective solution for commercial and industrial applications where both quality and budget are key considerations.
Key Features:
- 3 Pole 6A MCB: Designed for commercial 3-phase systems with a current rating of 6 Amps.
- C Curve Tripping Characteristic: Suitable for circuits with higher inrush currents, such as motors, offering protection by tripping at 5 to 10 times the rated current.
- 10kA Breaking Capacity: Safely handles fault currents up to 10kA, ensuring solid protection against overloads and short circuits.
- Voltage Rating: Compatible with 230/400V systems, operating at a frequency of 50/60Hz.
- Durability: Rated for 8,000 electrical operations and 20,000 mechanical operations, ensuring long-lasting performance.
- IP20 Protection: Prevents accidental contact with live components, ensuring safety in use.
Technical Specifications:
- Rated Current (In A): 6
- Poles: 3P
- Rated Voltage (Ue AC): 230/400V
- Frequency: 50/60Hz
- Insulation Voltage (Ui): 500V
- Breaking Capacity: 6/10kA
- Impulse Withstand Voltage: 4000V
- Dielectric Test Voltage: 2kV
- Thermo-magnetic Release: B, C, D Characteristics
- Electrical Life: 8,000 operations
- Mechanical Life: 20,000 operations
- IP Rating: IP20
- Ambient Temperature: -5°C to +40°C (daily average ≤35°C)
- Storage Temperature: -25°C to +70°C
FAQs:
1. What is a C Curve MCB?
A C Curve MCB trips when the current exceeds 5 to 10 times the rated load. This makes it suitable for circuits with higher inrush currents, such as motors or transformers, common in commercial environments.
2. Is this MCB appropriate for 3-phase systems?
Yes, this 3-pole MCB is designed for use in commercial 3-phase systems. It is particularly effective in applications where reliable protection against high fault currents is essential.
3. What is the significance of the 10kA breaking capacity?
The 10kA breaking capacity ensures that the MCB can safely interrupt fault currents up to 10,000 amps, providing critical protection against short circuits and overloads in more demanding commercial and industrial setups.
4. How long does this MCB last?
This MCB is rated for 8,000 electrical operations and 20,000 mechanical operations, offering long-term durability for commercial and industrial applications.
5. Can this MCB withstand extreme temperatures?
Yes, it operates efficiently within a temperature range of -5°C to +40°C, and it can be stored in environments between -25°C and +70°C.
Conclusion
The Live Electrical CB306C 3 Pole 6A C Curve 10kA MCB provides a reliable, cost-effective solution for protecting commercial 3-phase systems. Its C Curve characteristic makes it ideal for circuits with higher inrush currents, while its 10kA breaking capacity offers essential protection against fault currents. With long-lasting durability, it’s perfect for applications requiring consistent and reliable circuit protection.
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