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Installation must be carried out by a qualified electrician.
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Suitable for indoor use.
The Live CB216B Double Pole MCB is a high-capacity miniature circuit breaker designed to provide comprehensive protection for demanding single-phase circuits requiring simultaneous switching of both phase and neutral conductors. Rated at 16 Amps with a B-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 higher prospective short-circuit currents. The B-curve characteristic (3-5x In) provides fast response to faults while accommodating the minimal inrush currents typical of high-power resistive loads. With its robust construction and precision thermo-magnetic release, the CB216B ensures complete circuit isolation and equipment protection for residential, commercial, and industrial applications requiring double pole switching for higher current circuits.
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.
B-Curve Characteristic: Trips instantaneously at 3-5 times rated current (48A to 80A), specifically calibrated for high-power resistive loads with minimal inrush.
High-Capacity 16A Protection: Ideal for water heaters, high-power lighting circuits, electric showers, and dedicated appliance circuits.
Complete Isolation: Neutral pole disconnects simultaneously with phase, preventing floating neutral conditions and ensuring safety during maintenance.
Residential & Commercial Rating: 16A suits demanding applications in homes, apartments, offices, and light commercial spaces.
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.
| Specification | Details |
|---|---|
| Brand | Live |
| Series | CB |
| Model Number | CB216B |
| Device Type | Miniature Circuit Breaker (MCB) |
| Pole Configuration | 2 Pole (2P) - Switches Phase + Neutral |
| Current Rating (In) | 16 Amperes |
| Trip Curve Type | B Curve (3-5 × 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 |
1. What specific applications require a 16A double pole MCB with B-Curve?
Electric water heaters (3.5kW), electric showers, high-power lighting circuits in commercial spaces, dedicated socket circuits for workshops, and appliances requiring neutral switching with resistive loads.
2. Can this 16A double pole breaker support a 3.5kW electric shower?
Yes, a 3.5kW electric shower at 230V draws approximately 15.2A, making this 16A breaker perfectly sized. Double pole ensures both phase and neutral are disconnected for safety during installation work.
3. What is the power capacity of this 16A double pole breaker?
Maximum resistive load: 3.68kW at 230V. Continuous load (80% rule): 2.94kW. Perfect for dedicated appliance circuits and high-power lighting in commercial applications.
4. Why choose double pole for electric shower installations?
Double pole provides complete isolation of both phase and neutral, essential for safety in wet environments (bathrooms) and often required by electrical regulations for fixed immersion heaters and showers.
5. What cable size is recommended for 16A double pole circuits?
2.5mm² copper conductor minimum. 4mm² recommended for longer runs or high ambient temperatures. Terminals accept up to 16mm². Both phase and neutral conductors must be same size.
