The Live CB163C Single Pole MCB is the highest-capacity miniature circuit breaker in the CB series, engineered to provide reliable protection for maximum power single-phase electrical circuits with significant inductive loads. Rated at 63 Amps with a C-curve tripping characteristic, this 1-pole breaker represents the maximum current rating available, safeguarding the phase conductor on AC systems up to 230V at 50/60Hz frequency. It features a powerful 10kA breaking capacity, making it suitable for installations with high prospective short-circuit currents near main distribution points. The C-curve characteristic (5-10x In) provides excellent protection for circuits with moderate to high inrush currents typical of large industrial equipment at maximum power levels. With its robust construction and precision thermo-magnetic release, the CB163C ensures equipment protection and operational safety for the most demanding heavy industrial and commercial applications.

Key Features of Live CB163C 63A 1P MCB

• Maximum 63A Rating: Highest capacity in the CB series for single-phase applications up to 14.5kW.

• High 10kA Breaking Capacity: Powerful fault current interruption for installations with high prospective short-circuit currents up to 10,000 amps.

• C-Curve Characteristic: Trips instantaneously at 5-10 times rated current (315A to 630A), specifically calibrated for maximum power inductive loads with moderate to high inrush.

• Peak Capacity 63A Protection: Ideal for large industrial welders, heavy machinery, commercial cooking equipment, and high-power motor circuits at maximum capacity.

• Single Pole Configuration: Protects one phase conductor for single-phase 230V maximum capacity industrial circuits.

• Industrial-Grade Protection: Handles significant inrush currents from large motors and transformers at maximum power levels without nuisance tripping.

• Precision Thermo-Magnetic Release: Thermal bimetal strip for accurate overload protection and magnetic solenoid for instantaneous short-circuit response.

• Superior Electrical Isolation: 4000V impulse withstand rating and 500V insulation voltage for protection against voltage transients.

• Extended Operational Life: 8,000 electrical operations for long-term reliability in demanding industrial environments.

• Professional Installation: Standard 35mm DIN-rail mounting with IP20 finger-safe terminals and 16mm² wiring capacity.

Technical Specifications

Frequently Asked Questions (FAQs)

1. What specific heavy industrial equipment requires the maximum 63A C-Curve single pole capacity?
Large single-phase welders (up to 14kW), industrial grade commercial ovens, heavy-duty conveyor systems, large compressors (12-15HP), and high-power injection molding machines at maximum capacity.

2. How does the 630A magnetic trip benefit large motor starting at maximum capacity?
A 12-15HP single-phase motor can draw 500-600A during startup. The 630A magnetic trip threshold prevents nuisance tripping during this critical phase while maintaining full fault protection.

3. What is the maximum continuous load for this 63A maximum capacity breaker?
For continuous operation (3+ hours), follow the 80% rule: maximum 50.4A continuous load (11.6kW). This prevents thermal stress and ensures long breaker life at maximum capacity.

4. What are the critical cable requirements for 63A maximum capacity industrial circuits?
16mm² copper conductor MANDATORY - this matches the maximum terminal capacity. For runs over 15m, external termination with 25mm² is required. Never use smaller cable for 63A circuits.

5. Can this maximum capacity breaker serve as main isolation for a small industrial unit?
Yes, it's ideal as a main isolation switch for small workshops, light industrial units, and heavy commercial spaces requiring up to 14.5kW total load with significant inductive equipment.