TBC-140M Miniature Circuit Breaker (MCB) 1P 40A 6kA

Trip Mechanism: The TBC-140M employs a thermal-magnetic trip unit that provides comprehensive protection. The thermal element responds to sustained overload conditions, while the magnetic element provides instantaneous protection against short-circuit faults with tripping time less than 0.1 seconds.

Type C Tripping Curve: The Type C characteristic is designed for circuits with moderate inrush currents. Magnetic tripping occurs between 5 and 10 times the rated current, making it ideal for general distribution, lighting, and socket circuits in residential and commercial applications.

Breaking Capacity: With a rated short-circuit breaking capacity of 6 kA at 240/415V AC, the TBC-140M provides adequate protection for most standard low-voltage distribution systems.

Environmental Performance: Designed for reliable operation across a wide temperature range (-35°C to +70°C) and humidity levels up to 95%, ensuring consistent performance in various installation environments. IP20 degree of protection provides protection against solid objects greater than 12.5 mm.

Durability: Engineered for long service life with mechanical durability of 20,000 operations and electrical durability of 4,000 operations under load conditions.

• Residential distribution boards and consumer units
• Commercial electrical panels and switchboards
• Lighting circuit protection in buildings and facilities
• Socket outlet circuit protection
• General low-voltage power distribution systems
• Small commercial and retail installations
• Office buildings and educational facilities
• Light industrial control panels
• Renovation and retrofit projects