The TBC-150M is a high-performance 1-pole miniature circuit breaker engineered for dependable protection against overload and short-circuit conditions in low-voltage electrical distribution systems. Featuring a proven thermal-magnetic trip mechanism, this MCB ensures fast and safe disconnection to protect your electrical infrastructure and connected equipment.
The TBC-150M miniature circuit breaker is designed to meet the demanding requirements of modern electrical distribution systems. With its 50A rated current capacity and 6kA breaking capability, this 1-pole MCB provides comprehensive protection for residential, commercial, and light industrial applications.
Built with a reliable thermal-magnetic trip mechanism, the TBC-150M responds quickly to both overload and short-circuit conditions. The Type C tripping curve makes it ideal for general-purpose applications including lighting circuits, socket outlets, and distribution boards where moderate inrush currents may occur.
The compact single-module design (18 mm width) allows for efficient use of panel space, while the standard DIN-rail mounting ensures straightforward installation and replacement. The clear ON/OFF position indicator provides instant visual confirmation of the circuit status, enhancing operational safety and maintenance efficiency.
Manufactured to international standards including IEC-60898 and certified by leading testing authorities (CB CERT, TÜV), the TBC-150M delivers the quality and reliability required for critical electrical protection applications.
Trip Mechanism: The TBC-150M employs a thermal-magnetic trip unit that combines two protection methods. The thermal element provides time-delayed protection against overload conditions, while the magnetic element offers instantaneous protection against short-circuit faults.
Type C Tripping Curve: With a Type C characteristic, the magnetic trip operates between 5 and 10 times the rated current (In), making it suitable for circuits with moderate inrush currents such as fluorescent lighting, small motors, and general distribution applications.
Breaking Capacity: The 6 kA breaking capacity (Icn) at 240/415V AC ensures adequate protection for most residential and commercial installations. The tripping time of less than 0.1 seconds provides rapid fault clearance to minimize damage and enhance safety.
Electrical Ratings: Rated for operation at 240/415V AC with a frequency of 50/60 Hz, the MCB features a rated impulse voltage of 4kV, providing protection against voltage transients and surges in the electrical network.
Environmental Performance: With an operating temperature range of -35°C to +70°C and IP20 degree of protection, the TBC-150M is suitable for installation in standard electrical enclosures across diverse environmental conditions.
Durability: Engineered for long service life with 20,000 mechanical operations and 4,000 electrical operations, ensuring reliable performance throughout its operational lifetime.
| Parameter | Specification |
|---|---|
| Product Type | Miniature Circuit Breaker |
| Model Number | TBC-150M |
| Application | Distribution |
| Control Type | Toggle |
| Number of Poles | 1 Pole (1P) |
| Rated Current (In) | 50 A |
| Rated Voltage (Un) | 240 / 415 V AC |
| Rated Impulse Voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Network Type | AC |
| Trip Unit Technology | Thermal-Magnetic |
| Tripping Curve | Type C |
| Tripping Time | t < 0.1 s |
| Breaking Capacity (Icn) | 6 kA |
| Mounting Type | DIN Rail (35 mm) |
| Mechanical Durability | 20,000 cycles |
| Electrical Durability | 4,000 cycles |
| Height | 78 mm |
| Width | 18 mm (1 Module) |
| Depth | 66 mm |
| Operating Temperature | -35 °C to +70 °C |
| Relative Humidity | 0 – 95 % |
| Degree of Protection | IP20 |
| Standards Compliance | IEC-60898, CB CERT, CE Marking, TÜV |
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