Skip to product information
1 of 1

Live CB220C Double Pole MCB 10kA C Curve 20A | 2P Circuit Breaker

Live CB220C Double Pole MCB 10kA C Curve 20A | 2P Circuit Breaker

Regular price £4.44
Regular price Sale price £4.44
Sold out
Shipping calculated at checkout.

Custom printed panels are non-returnable.

Please upload the image, photo, or logo you would like printed on the LED panel.

Recommended image size:• 600 × 600 pixels or higher resolutionAccepted file formats:• JPG• PNG• PDF

AvailabilityLow stock: 87 left

Vendor: LIVE ELECTRIC
Category: Circuit Breaker

Shipping Policy

Once you receive your order confirmation email, your order will be processed within 2–3 business days (excluding weekends and public holidays).

Installation & Safety

Installation must be carried out by a qualified electrician.
Ensure power is switched off before installation.
Suitable for indoor use.

View full product details

The Live CB220C Double Pole MCB is a heavy-duty miniature circuit breaker designed to provide comprehensive protection for high-power single-phase circuits requiring simultaneous switching of both phase and neutral conductors while handling substantial inrush currents. Rated at 20 Amps with a C-curve tripping characteristic, this 2-pole breaker safeguards both the phase and neutral conductors on AC systems up to 230/400V at 50/60Hz frequency. It features a powerful 10kA breaking capacity, making it suitable for installations with high prospective short-circuit currents. The C-curve characteristic (5-10x In) provides excellent protection for circuits with significant inductive loads while accommodating the inrush currents typical of large pumps, compressors, and industrial equipment. With its robust construction and precision thermo-magnetic release, the CB220C ensures complete circuit isolation and equipment protection for demanding applications requiring double pole switching with substantial inductive load tolerance.

Key Features of Live CB220C 20A 2P MCB

  • Complete Double Pole Protection: Simultaneously protects and switches both phase and neutral conductors, ensuring complete circuit isolation during fault conditions and maintenance.

  • 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 (100A to 200A), specifically calibrated for circuits with substantial inductive loads and significant inrush.

  • High-Capacity 20A Protection with Inductive Tolerance: Ideal for large pumps (up to 3HP), compressors, HVAC equipment, and industrial machinery.

  • Complete Isolation: Neutral pole disconnects simultaneously with phase, preventing floating neutral conditions and ensuring safety during maintenance.

  • Inductive Load Capability: Handles significant inrush currents from large motor-driven equipment without nuisance tripping.

  • Precision Thermo-Magnetic Release: Thermal bimetal strip for accurate overload protection and magnetic solenoid for instantaneous short-circuit response on both 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 and 16mm² wiring capacity.

Technical Specifications



Specification Details
Brand Live
Series CB
Model Number CB220C
Device Type Miniature Circuit Breaker (MCB)
Pole Configuration 2 Pole (2P) - Switches Phase + Neutral
Current Rating (In) 20 Amperes
Trip Curve Type C Curve (5-10 × 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 (both poles)
Neutral Pole Protection Fully protected and switched
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 Up to 16 mm²
Mounting Type DIN Rail (35mm)
Standards BS IEC/EN 60898

Frequently Asked Questions (FAQs)

1. What specific applications require a 20A C-Curve double pole MCB?
Large single-phase pumps up to 3HP (2.2kW), air conditioning compressors, commercial HVAC fans, industrial refrigeration units, conveyor drives, and machine tool spindle drives requiring neutral switching.

2. Can this 20A C-Curve breaker handle a 2.2kW pump motor?
Yes, it's ideal for 2.2kW pumps. The C-Curve tolerates motor starting currents up to 180-200A while the 20A rating provides excellent running protection without nuisance tripping.

3. What is the advantage of double pole for HVAC equipment?
Double pole provides complete isolation of both phase and neutral, essential for safe maintenance of HVAC units where multiple power sources may be present and where outdoor installation creates additional safety requirements.

4. Why choose C-Curve over B-Curve for 20A compressor circuits?
C-Curve (5-10x In) handles starting currents up to 200A where B-Curve (3-5x In) would trip at 100A, making C-Curve essential for compressor motors with high locked-rotor currents.

5. What cable size is recommended for 20A C-Curve motor circuits?
2.5mm² copper conductor minimum. 4mm² recommended for longer runs to minimize voltage drop during motor starting. Terminals accept up to 16mm². Both phase and neutral must be same size.