
The Live CH3100C Triple Pole MCB is a high-capacity industrial-grade miniature circuit breaker designed to provide reliable protection for very high-power three-phase electrical circuits. Rated at 100 Amps with a C-curve tripping characteristic, this 3-pole breaker safeguards all three phases (L1, L2, L3) on AC systems up to 400V at 50/60Hz frequency. It features a 6kA breaking capacity, making it suitable for standard industrial and commercial installations. The C-curve characteristic (5-10x In) provides excellent protection for circuits with significant inductive loads while accommodating the inrush currents typical of large industrial machinery and equipment. With its robust construction and precision thermo-magnetic release, the CH3100C ensures equipment protection and operational safety for demanding high-power applications requiring current ratings above the standard 63A range.
Triple Pole Protection: Simultaneously protects all three phases (L1, L2, L3) in three-phase systems, ensuring complete circuit isolation during fault conditions.
High-Capacity 100A Rating: Provides protection for applications requiring 100A capacity, beyond the standard 63A maximum of conventional MCBs.
6kA Breaking Capacity: Reliable fault current interruption for standard industrial and commercial installations.
C-Curve Characteristic: Trips instantaneously at 5-10 times rated current (500A to 1000A), specifically calibrated for high-power circuits with significant inductive loads.
Extended Current Range: Ideal for main distribution boards, large industrial machinery, heavy commercial installations, and high-power three-phase applications.
Industrial-Grade Protection: Suitable for demanding industrial applications requiring robust three-phase protection at higher current ratings.
Precision Thermo-Magnetic Release: Thermal bimetal strip for accurate overload protection and magnetic solenoid for instantaneous short-circuit response on all three poles.
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.
Professional Installation: Standard 35mm DIN-rail mounting with IP20 finger-safe terminals.
| Specification | Details |
|---|---|
| Brand | Live |
| Series | CH |
| Model Number | CH3100C |
| Device Type | Miniature Circuit Breaker (MCB) |
| Pole Configuration | 3 Pole (3P) |
| Current Rating (In) | 100 Amperes |
| Trip Curve Type | C Curve (5-10 × In) |
| Operational Voltage | 230/400V AC |
| Rated Breaking Capacity | 6kA (6000 Amps) |
| Frequency Range | 50/60 Hertz |
| Insulation Rating (Ui) | 500 Volts |
| Impulse Withstand (Uimp) | 4000 Volts (1.2/50 µs) |
| Dielectric Test Voltage | 2kV for 60 seconds |
| Protection Mechanism | Thermo-magnetic (all poles) |
| Operating Temperature | -5°C to +40°C (daily average ≤35°C) |
| Calibration Reference | 30°C |
| Storage Temperature | -25°C to +70°C |
| Electrical Lifespan | 8,000 cycles |
| Protection Class | IP20 |
| Terminal Capacity | 25-35 mm² (typical for 100A) |
| Mounting Type | DIN Rail (35mm) |
| Standards | BS IEC/EN 60898 |
1. What specific applications require a 100A triple pole MCB with C-Curve?
Main distribution boards for industrial facilities, large manufacturing equipment, heavy commercial HVAC systems, industrial compressors, large pumps (up to 30kW), and main switchgear for medium-sized industrial units.
2. What is the power capacity of this 100A three-phase breaker?
Maximum load: 69kW at 400V three-phase (resistive). For motor applications, suitable for equipment up to 30-37kW depending on starting characteristics and duty cycle.
3. Can this breaker be used as a main switch for an industrial facility?
Yes, it's ideal as a main isolation breaker for medium-sized industrial facilities, large workshops, and commercial buildings requiring up to 69kW three-phase supply with robust C-Curve protection.
4. Why choose a 100A MCB over a 63A MCB for industrial applications?
Provides essential additional capacity for facilities with high power demands, multiple large motors, or future expansion plans where 63A would be insufficient, ensuring reliable operation without overloading.
5. What cable size is required for 100A three-phase circuits?
25mm² copper conductor minimum per phase. 35mm² strongly recommended for longer runs, higher ambient temperatures, and to minimize voltage drop. All three phase conductors must be same size.