4.9 Based on 1156 reviews 
Description
3 Pole 63A B Curve 10kA Miniature Circuit Breaker
Live Electrical Three Phase MCB – CB363B
The Live Electrical CB363B 3 Pole 63A B Curve 10kA MCB provides reliable and cost-effective protection for commercial 3-phase systems. Its B Curve tripping characteristic makes it ideal for circuits with lighter loads, such as lighting or small appliances. Additionally, the 10kA breaking capacity ensures effective fault current protection, making it a great choice for projects requiring high quality and affordability.
Key Features:
- 3 Pole 63A MCB: Designed for 3-phase systems with a current rating of 63 Amps.
- B Curve Tripping Characteristic: Suited for circuits with lighter loads, such as lighting or small appliances, tripping at 3 to 5 times the rated current.
- 10kA Breaking Capacity: Provides reliable protection by safely handling fault currents up to 10kA, preventing 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 parts, offering enhanced safety in commercial and industrial environments.
Technical Specifications:
- 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 the purpose of a B Curve MCB?
A B Curve MCB trips when the current exceeds 3 to 5 times the rated load, making it ideal for circuits with lighter loads, such as lighting or small appliances.
2. Can this MCB be used in 3-phase systems?
Yes, this 3-pole MCB is specifically designed for 3-phase systems, providing reliable protection for circuits handling up to 63 amps.
3. Why is the 10kA breaking capacity important?
The 10kA breaking capacity allows the MCB to safely handle fault currents up to 10,000 amps, providing essential protection against overloads and short circuits.
4. How durable is this MCB?
This MCB is rated for 8,000 electrical operations and 20,000 mechanical operations, ensuring long-term reliability in commercial environments.
5. Can this MCB operate in extreme temperatures?
Yes, it operates efficiently between -5°C and +40°C and can be stored in conditions ranging from -25°C to +70°C, ensuring durability in various environments.
Conclusion
The Live Electrical CB363B 3 Pole 63A B Curve 10kA MCB is a cost-effective yet high-quality solution for protecting circuits with lighter loads, such as lighting and small appliances in commercial 3-phase systems. Its B Curve tripping characteristic and 10kA breaking capacity offer reliable protection, ensuring safety and performance for budget-conscious projects.
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