The TBC-263Z is a high-performance 2-pole miniature circuit breaker engineered to deliver reliable protection against overload and short-circuit conditions in low-voltage distribution systems. Featuring a robust thermal-magnetic trip mechanism with Type C characteristic and 10kA breaking capacity, this MCB ensures optimal safety and performance across residential, commercial, and light industrial installations.
The TBC-263Z Miniature Circuit Breaker represents a perfect balance of compact design and robust protection capabilities. Designed for 2-pole applications with a rated current of 63A, this MCB incorporates advanced thermal-magnetic tripping technology to safeguard electrical circuits from both gradual overloads and sudden short-circuit faults.
With its Type C tripping characteristic, the TBC-263Z is particularly well-suited for circuits with moderate inrush currents, making it ideal for general-purpose distribution, motor loads, and transformer protection. The 10kA breaking capacity ensures reliable interruption of fault currents in demanding electrical environments.
Built to international standards and featuring intuitive toggle operation, the TBC-263Z offers installers and facility managers a dependable solution for modern electrical distribution systems. Its compact 2-module design optimizes panel space while maintaining full protection functionality.
Tripping Technology: The TBC-263Z employs a dual-element thermal-magnetic tripping mechanism. The thermal element provides time-delayed protection against sustained overloads, while the magnetic element delivers instantaneous protection against short-circuit currents.
Type C Tripping Curve: The Type C characteristic provides tripping between 5 and 10 times the rated current, making it suitable for circuits with moderate inrush currents such as lighting circuits, socket outlets, and small motors.
Breaking Capacity: With a rated breaking capacity of 10kA at 415V AC, the TBC-263Z can safely interrupt fault currents up to 10,000 amperes, providing robust protection in commercial and light industrial installations.
Mounting & Installation: Standard 35mm DIN rail mounting enables quick installation and removal. The 2-module (36mm) width allows efficient use of distribution board space.
Environmental Performance: Designed to operate reliably across a wide temperature range (-35°C to +70°C) and humidity conditions (0-95%), ensuring consistent performance in diverse installation environments.
Standards Compliance: Manufactured in accordance with IEC 60898 international standards and bearing CE marking for European market compliance.
| Parameter | Specification |
|---|---|
| Model Number | TBC-263Z |
| Product Type | Miniature Circuit Breaker (MCB) |
| Number of Poles | 2P |
| Rated Current (In) | 63 A |
| Rated Voltage (Un) | 415 V AC |
| Rated Frequency | 50 / 60 Hz |
| Network Type | AC |
| Tripping Technology | Thermal-Magnetic |
| Tripping Curve | Type C |
| Breaking Capacity (Icn) | 10 kA |
| Control Type | Toggle Switch |
| Mounting Type | DIN Rail (35mm) |
| Mechanical Durability | 20,000 cycles |
| Electrical Durability | 4,000 cycles |
| Height | 82 mm |
| Width | 36 mm (2 Modules) |
| Depth | 72 mm |
| Operating Temperature | -35°C to +70°C |
| Relative Humidity | 0 – 95% |
| Degree of Protection | IP20 |
| Standards Compliance | IEC 60898, CE Marking |
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