TBC-316M Miniature Circuit Breaker (MCB) 3P 16A 6kA

Name: TBC-316M Miniature Circuit Breaker (MCB) 3P 16A 6kA
Brand: TBC
SKU: TBC-316M

TBC-316M

The TBC-316M 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.

Key Features

3-pole configuration with 16A rated current capacity
Type C tripping curve optimized for inductive loads and motor circuits
6kA breaking capacity for robust short-circuit protection
Thermal-magnetic trip technology for accurate overload detection
Fast tripping time of less than 0.1 seconds
Standard DIN rail mounting (35mm) for easy installation
Compact design: 54mm width for space-efficient panel layouts
Wide operating temperature range: -35°C to +70°C
High mechanical durability: 20,000 cycles
IP20 degree of protection
Compliant with IEC 60898-1 international standards
CE, CB, and TÜV certified for quality assurance

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The TBC-316M miniature circuit breaker represents a reliable solution for three-phase circuit protection in modern electrical installations. Designed with precision engineering, this 3-pole MCB combines thermal and magnetic trip mechanisms to provide comprehensive protection against both overload conditions and short-circuit faults.

With its Type C tripping characteristic, the TBC-316M is particularly well-suited for circuits with moderate inductive loads, including lighting circuits with transformers, small motors, and general power distribution applications. The 6kA breaking capacity ensures adequate protection for typical residential and commercial installations, while the compact 54mm width allows for efficient use of distribution board space.

Built to withstand demanding environmental conditions, this circuit breaker operates reliably across a temperature range of -35°C to +70°C and maintains performance in humidity levels up to 95%. The robust construction guarantees 20,000 mechanical operations and 4,000 electrical operations, ensuring long-term reliability and reduced maintenance requirements.

Installation is straightforward with standard 35mm DIN rail mounting, and the intuitive toggle control mechanism provides clear ON/OFF indication for easy operation and status verification. Full compliance with IEC 60898-1 standards and multiple international certifications make the TBC-316M a trusted choice for electrical contractors and system designers worldwide.

Trip Mechanism Technology
The TBC-316M employs a dual-element thermal-magnetic trip mechanism. The thermal element provides time-delayed protection against sustained overload conditions, while the magnetic element delivers instantaneous protection against short-circuit faults. This combination ensures optimal protection across the full range of fault conditions.

Type C Tripping Characteristics
The Type C curve is designed to trip between 5 and 10 times the rated current (In), making it ideal for circuits with moderate inrush currents. This characteristic prevents nuisance tripping while maintaining effective protection for general-purpose circuits, lighting with transformers, and small motor loads.

Breaking Capacity
With a rated breaking capacity of 6kA at 415V AC, the TBC-316M can safely interrupt fault currents up to 6,000 amperes. This capacity is suitable for most residential and commercial installations where fault levels are within this range.

Electrical Ratings
Rated for operation at 415V AC and compatible with both 50Hz and 60Hz systems, the breaker features a rated impulse voltage withstand of 4kV, providing protection against transient overvoltages. The 16A rated current makes it suitable for medium-load circuits in three-phase systems.

Construction and Mounting
The breaker features a thermoplastic housing with flame-retardant properties and silver-alloy contacts for reliable current interruption. Standard 35mm DIN rail mounting clips ensure secure installation in distribution boards and enclosures. The IP20 rating provides protection against solid objects larger than 12.5mm.

Residential distribution boards and consumer units for three-phase supply protection
Commercial building electrical installations including offices, retail spaces, and public facilities
Light industrial facilities and workshops with moderate electrical loads
Protection of lighting circuits with inductive ballasts and transformers
Small motor circuits and HVAC equipment protection
General-purpose three-phase power distribution circuits
Sub-distribution boards in multi-story buildings
Electrical panels in educational institutions and healthcare facilities
Renovation and upgrade projects requiring reliable circuit protection
Backup and redundant circuit protection in critical installations

Parameter	Specification
Electrical Characteristics
Rated Voltage (Un)	415 V AC
Rated Frequency	50 / 60 Hz
Rated Impulse Voltage	4 kV
Network Type	AC
Number of Poles	3P
Rated Current (In)	16 A
Tripping Technology	Thermal-Magnetic
Tripping Curve	Type C
Tripping Time	t < 0.1 s
Breaking Capacity (Icu)	6 kA
Mechanical Characteristics
Control Type	Toggle
Mounting Type	DIN Rail (35 mm)
Mechanical Durability	20,000 cycles
Electrical Durability	4,000 cycles
Physical Dimensions
Height	78 mm
Width	54 mm
Depth	66 mm
Environmental Conditions
Operating Temperature	-35 °C to +70 °C
Relative Humidity	0 – 95 %
Degree of Protection	IP20
Standards & Compliance
Standards	IEC 60898-1
Certifications	CE, CB, TÜV

TBC-316M Miniature Circuit Breaker (MCB) 3P 16A 6kA

Key Features

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