TBC-306M Miniature Circuit Breaker (MCB) 3P 6A 6kA

Protection Technology: The TBC-306M employs proven thermal-magnetic trip technology that combines a bimetallic thermal element for overload protection with an electromagnetic release for instantaneous short-circuit protection. The Type C tripping curve provides a magnetic trip range of 5 to 10 times the rated current, making it ideal for circuits with moderate inrush currents.

Breaking Performance: With a rated breaking capacity of 6kA at 415V AC, this MCB can safely interrupt fault currents up to 6,000 amperes, providing adequate protection for most residential and commercial installations. The ultra-fast tripping time of less than 0.1 seconds minimizes potential damage during fault conditions.

Electrical Ratings: Rated for 415V AC operation at 50/60 Hz with a 6A continuous current capacity, the TBC-306M features a rated impulse voltage withstand of 4kV, ensuring protection against transient overvoltages. The device is designed for AC network applications and provides reliable performance across its full voltage range.

Construction & Durability: The circuit breaker housing provides IP20 ingress protection, suitable for installation in standard electrical enclosures. High-quality contact materials and arc-quenching chambers ensure long service life, with mechanical durability rated at 20,000 operations and electrical durability of 4,000 cycles under load.

Environmental Performance: Engineered to operate in ambient temperatures from -35°C to +70°C and relative humidity up to 95%, the TBC-306M maintains consistent performance across diverse climatic conditions, making it suitable for both indoor and protected outdoor installations.

• Residential distribution boards and consumer units for three-phase power protection
• Commercial building electrical panels and sub-distribution systems
• Light industrial installations including workshops and small manufacturing facilities
• Three-phase motor control circuits and protection
• Fluorescent and LED lighting distribution circuits with moderate inrush currents
• General low-voltage protection circuits in office buildings and retail spaces
• HVAC equipment protection in commercial and residential applications
• Small pump and compressor motor protection circuits
• Electrical panel upgrades and retrofit projects requiring compact protection devices
• Multi-tenant building electrical distribution systems
• Educational facilities and institutional building electrical systems
• Agricultural and farm building electrical installations