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The Live CB232B Double Pole MCB is a high-capacity miniature circuit breaker designed to provide comprehensive protection for very high-power single-phase circuits requiring simultaneous switching of both phase and neutral conductors. Rated at 32 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 high prospective short-circuit currents. The B-curve characteristic (3-5x In) provides fast response to faults while accommodating the minimal inrush currents typical of very high-power resistive loads. With its robust construction and precision thermo-magnetic release, the CB232B ensures complete circuit isolation and equipment protection for demanding commercial and industrial applications requiring double pole switching for high-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 (96A to 160A), specifically calibrated for very high-power resistive loads with minimal inrush.
Very High-Capacity 32A Protection: Ideal for large electric cookers (7kW+), commercial kitchen ranges, industrial water heaters, and high-power catering equipment.
Complete Isolation: Neutral pole disconnects simultaneously with phase, preventing floating neutral conditions and ensuring safety during maintenance.
Commercial & Industrial Rating: 32A suits demanding applications in restaurants, hotels, canteens, and light industrial settings.
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 | CB232B |
| Device Type | Miniature Circuit Breaker (MCB) |
| Pole Configuration | 2 Pole (2P) - Switches Phase + Neutral |
| Current Rating (In) | 32 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 32A double pole MCB with B-Curve?
Large electric cookers and ranges (7-7.5kW), commercial kitchen equipment (large ovens, griddles), industrial water heaters, high-power catering equipment, and dedicated circuits for large cooking appliances.
2. Can this 32A double pole breaker support a 7kW commercial oven?
Yes, a 7kW oven at 230V draws approximately 30.4A, making this 32A breaker perfectly sized. Double pole ensures both phase and neutral are disconnected for safety during equipment servicing.
3. What is the power capacity of this 32A double pole breaker?
Maximum resistive load: 7.36kW at 230V. Continuous load (80% rule): 5.89kW. Ideal for large commercial cooking appliances and high-power industrial resistive loads.
4. Why choose double pole for commercial kitchen equipment?
Double pole provides complete isolation of both phase and neutral, essential for safety in commercial kitchens where equipment undergoes frequent cleaning, maintenance, and where water exposure creates additional shock risks.
5. What cable size is mandatory for 32A double pole circuits?
6mm² copper conductor minimum. 10mm² recommended for longer runs or high ambient temperatures in commercial kitchens. Terminals accept up to 16mm². Both phase and neutral conductors must be same size.
