The TBC-310M is a high-performance 3-pole miniature circuit breaker engineered to deliver dependable overload and short-circuit protection in low-voltage electrical distribution systems. Featuring advanced thermal-magnetic trip technology with Type C tripping characteristics, this MCB is ideal for safeguarding circuits in residential, commercial, and light industrial environments where reliable protection is essential.
The TBC-310M miniature circuit breaker represents a robust solution for three-phase electrical protection in diverse installation environments. Built with precision engineering and quality materials, this 3-pole MCB combines thermal and magnetic protection mechanisms to ensure comprehensive circuit safety.
Designed for 415V AC systems operating at 50/60 Hz, the TBC-310M features a Type C tripping characteristic that makes it particularly suitable for circuits with moderate inrush currents, such as those powering fluorescent lighting, small motors, and transformers. The 6kA breaking capacity provides adequate protection for most residential and commercial installations.
The device's compact modular design allows for efficient use of space in distribution boards, while the standard 35mm DIN rail mounting ensures compatibility with existing electrical panels. The toggle control mechanism provides clear ON/OFF indication and smooth operation throughout its rated mechanical life of 20,000 cycles.
Engineered to perform reliably in challenging environmental conditions, the TBC-310M operates effectively across a wide temperature range and maintains its protective functions in humidity levels up to 95%. This versatility makes it suitable for installation in various locations, from climate-controlled buildings to less regulated industrial spaces.
Protection Technology: The TBC-310M employs thermal-magnetic trip technology, combining a bimetallic thermal element for overload protection with an electromagnetic release for short-circuit protection. The Type C tripping curve is calibrated to trip between 5 and 10 times the rated current, providing optimal protection 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. The ultra-fast tripping time of less than 0.1 seconds minimizes potential damage to connected equipment and reduces safety risks during fault conditions.
Electrical Ratings: The device is rated for 10A continuous current at an ambient temperature of 30°C. It operates on AC networks at 415V with a rated impulse voltage withstand of 4kV, providing robust protection against voltage transients. The MCB is suitable for both 50Hz and 60Hz frequency systems.
Construction and Mounting: The TBC-310M features a thermoplastic housing with flame-retardant properties and silver-alloy contacts for reliable current interruption. The 3-pole configuration occupies 54mm (3 modules) of DIN rail space. Installation is tool-free via standard 35mm DIN rail clips, and the device can be easily removed for maintenance or replacement.
Durability and Lifecycle: Rated for 20,000 mechanical operations and 4,000 electrical operations at rated current, the TBC-310M is built for long-term reliability. The robust internal mechanism ensures consistent performance throughout its operational life.
Standards Compliance: Manufactured in accordance with IEC 60898-1 international standards for MCBs, the TBC-310M carries CE marking for European conformity, CB certification for international recognition, and TÜV approval for quality and safety assurance.
| Parameter | Specification |
|---|---|
| General Information | |
| Product Type | Miniature Circuit Breaker (MCB) |
| Model Number | TBC-310M |
| Number of Poles | 3P |
| Rated Current (In) | 10 A |
| Electrical Characteristics | |
| Rated Voltage (Un) | 415 V AC |
| Rated Frequency | 50 / 60 Hz |
| Rated Impulse Voltage | 4 kV |
| Network Type | AC |
| Tripping Technology | Thermal-Magnetic |
| Tripping Curve | Type C |
| Tripping Time | t < 0.1 s |
| Breaking Capacity (Icu) | 6 kA |
| Mechanical Characteristics | |
| Control Type | Toggle Switch |
| Mounting Type | DIN Rail (35 mm) |
| Mechanical Durability | 20,000 cycles |
| Electrical Durability | 4,000 cycles |
| Physical Dimensions | |
| Height | 78 mm |
| Width | 54 mm (3 modules) |
| Depth | 66 mm |
| Environmental Conditions | |
| Operating Temperature | -35 °C to +70 °C |
| Relative Humidity | 0 – 95 % (non-condensing) |
| Degree of Protection | IP20 |
| Standards & Compliance | |
| International Standard | IEC 60898-1 |
| Certifications | CE, CB, TÜV |
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