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Installation must be carried out by a qualified electrician.
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Suitable for indoor use.
The Live CB110D Single Pole MCB is a specialized high-performance miniature circuit breaker engineered to provide reliable protection for single-phase circuits with extremely high inrush currents. Rated at 10 Amps with a D-curve tripping characteristic, this 1-pole breaker safeguards the phase conductor on AC systems up to 230V at 50/60Hz frequency. It features an enhanced 10kA breaking capacity, making it suitable for installations with higher prospective short-circuit currents. The D-curve characteristic (10-20x In) is specifically designed for applications with very high momentary startup currents, ensuring the breaker tolerates these surges while maintaining full protection against overloads and short circuits. With its robust construction and precision thermo-magnetic release, the CB110D ensures equipment protection and operational safety for specialized industrial and commercial applications.
High 10kA Breaking Capacity: Enhanced fault current interruption capability for installations with higher prospective short-circuit currents.
D-Curve Characteristic: Trips instantaneously at 10-20 times rated current (100A to 200A), specifically designed for applications with extremely high inrush currents.
Versatile 10A Protection with High Surge Tolerance: Ideal for small motors, transformers, welding equipment, and specialty loads with high startup currents.
Single Pole Configuration: Protects one phase conductor, standard for single-phase 230V circuits.
Specialized Application Focus: Prevents nuisance tripping where standard B/C curves would fail due to high inrush.
Precision Thermo-Magnetic Release: Thermal bimetal strip for overload protection and magnetic solenoid for short-circuit response.
Superior Electrical Isolation: 4000V impulse withstand rating and 500V insulation voltage.
Extended Operational Life: 8,000 electrical operations for long-term reliability.
Professional Installation: DIN-rail mounting with IP20 finger-safe terminals and 16mm² wiring capacity.
| Specification | Details |
|---|---|
| Brand | Live |
| Model Number | CB110D |
| Device Type | Miniature Circuit Breaker (MCB) |
| Pole Configuration | 1 Pole (1P) |
| Current Rating (In) | 10 Amperes |
| Trip Curve Type | D Curve (10-20 × In) |
| Operational Voltage | 230/400V AC |
| Rated Breaking Capacity | 10kA (10000 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 |
| Operating Temperature | -5°C to +40°C |
| Calibration Reference | 30°C |
| Electrical Lifespan | 8,000 cycles |
| Protection Class | IP20 |
| Terminal Capacity | Up to 16 mm² |
| Mounting Type | DIN Rail (35mm) |
| Standard | IEC 60898-1 |
1. What are the main applications for the CB110D 10A 1P MCB?
Small single-phase motors (up to 2HP), control transformers, welding equipment, solenoid valves, X-ray machines, discharge lighting, and circuits with very high inrush currents.
2. What is the difference between D-Curve and C-Curve?
D-Curve (10-20x In) tolerates much higher inrush currents than C-Curve (5-10x In), making it essential for equipment with extreme startup surges like motors and transformers.
3. What transformer size can this 10A D-Curve breaker support?
Typically suitable for control transformers up to 1kVA, depending on inrush characteristics. The D-Curve tolerates high magnetizing inrush during energization.
4. What is the power capacity of this 10A D-Curve breaker?
Maximum load: 2.3kW at 230V. Continuous load (80% rule): 1.84kW. Perfect for small motor and transformer applications within this range.
5. What cable size is recommended for 10A D-Curve circuits?
1.5mm² copper conductor minimum. 2.5mm² recommended for motor circuits and mechanical robustness. Terminals accept up to 16mm².
