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Miniature
Circuit Breaker
What is Mini Circuit Breaker?
Mini Circuit Breaker (MCB), also known as miniature circuit breaker, is a current-limiting, high-breakage miniature circuit breaker with overload and short-circuit double protection.With advanced structure, reliable performance, strong breaking capacity, beautiful and compact appearance, etc., the miniature circuit breaker is widely used in industrial, commercial, high-rise and civil housing and other places.
TOMD6 is the new generation of products from Tongou，it is suitable for AC 50Hz/60Hz, rated voltage 230V, rated current 63A and below in the circuit, as line overload and short circuit protection.
What is a Mini Circuit Breaker used for?
A mini circuit breaker, also known as a miniature circuit breaker (MCB), is used to protect electrical circuits from overloads and short circuits. It serves as a safety device that automatically shuts off the electrical flow in a circuit if it detects an abnormal condition such as an overload or a short circuit. This helps prevent damage to appliances, equipment, and wiring, as well as reduces the risk of fire hazards. Mini circuit breakers are commonly used in residential, commercial, and industrial electrical installations to ensure the safety and reliability of the electrical system.
PRODUCTS
Mini Cricuit Breaker Electrical Protection
- Over-current Protection
- Operating Voltage:230V
- Rated Frequency:50/60Hz
- Printing:Standard or Customized
Din Rail AC MCB
- Breaking Capacity:6kA
- Type:Mini Circuit Breaker
- Casing Material:PA66 or higher
- Printing:Standard or Customized
Mini Home Circuit Breaker
- Rate Current:6-63A
- Rated Frequency:50/60Hz
- Casing Material:PA66 or higher
- Printing:Standard or Customized
Mini MCB Over-current Protection
- Rate Current:6-63A
- Operating Voltage:230V
- Breaking Capacity:6kA
- Printing:Standard or Customized
DC MCB Din Rail Circuit Breaker
- Short Circuit Protection
- Low Energy Consumption
- Visual Window
- Printing:Standard or Customized
Solar System DC Mini Circuit Breaker
- Flame retardant material
- Solar System
- Type:Mini Circuit Breaker
- Printing:Standard or Customized
Safty of Electrcity DC System
- Low Energy Consumption
- DC Solar System
- Rate Current:6-63A
- Printing:Standard or Customized
MINI circuit breaker
Short Circuit Protection
Safer to use
Overload Protection
Protecting the safety of your equipment
Safe Use of Electricity
More efficient and safer
View Window
Easier to operate
Flame Retardant Material
TEMPERATURE FOR OPERATION:-30C~+70°
Seiko Manufacturing
Benefit Your Life
Different Types Of Mini Circuit Breaker (mcbs)
Miniature Circuit Breakers (MCBs) are classified into several types based on their tripping characteristics, which are the fault current levels at which the device operates during short circuits or overloads.
Type B MCB: Type B MCBs trip when the current is 3 to 5 times the rated current. They are used for purely resistive loads or with very small inductive loads, typically in low power domestic applications like lighting circuits and home wirings.
Type C MCB: Operating for a current value of 5 to 10 times the rated current, Type C MCBs are used with inductive loads such as motors, fans, and transformers, where there is a chance of sudden current surges. They are mainly used in commercial and industrial applications.
Type D MCB: With a trip current of 10 to 20 times the rated current, Type D MCBs are used for very high inductive loads. They are mainly found in high power industrial applications for equipment like heavy motors, transformers, x-rays, and welding equipment.
What is the difference between DC MCB and AC MCB?
Mini Circuit Breaker (MCB), also known as miniature circuit breaker, is a current-limiting, high-breakage miniature circuit breaker with overload and short-circuit double protection.With advanced structure, reliable performance, strong breaking capacity, beautiful and compact appearance, etc., the miniature circuit breaker is widely used in industrial, commercial, high-rise and civil housing and other places.
DC Mini Circuit Breaker：
①DC Current Characteristics: DC MCBs are able to adapt to the continuous and stable characteristics of DC current without naturally crossing zero as in AC current.
②Special design: DC MCBs are usually equipped with special contact materials and interrupter chamber designs to cope with the continuous characteristics of DC arcs.
③Overload protection: DC MCBs are able to effectively prevent overloads due to overcharging of batteries or reverse currents in PV systems.
AC Mini Circuit Breaker：
①AC CURRENT CHARACTERISTICS: AC circuit breakers are suitable for AC currents and are able to utilise the natural zero crossing point of the current to break the circuit more easily.
②Wide range of applications: AC circuit breakers are suitable for AC power distribution in most standard residential and commercial buildings, as well as in industrial environments.
③Cost Effective: AC circuit breakers are typically more economical than DC MCBs due to their wide range of applications and production scale.
④Ease of Installation: AC circuit breakers are relatively simple to install and maintain and require no special skills or equipment.
Usage Scenarios：
——DC Power Systems: For DC power systems, such as solar photovoltaic systems, battery storage systems, etc., DC MCBs are a more suitable choice because they are specifically designed to handle the characteristics of DC current.
——AC Power Systems: For standard AC power systems, such as power distribution in homes, offices and industrial facilities, AC circuit breakers provide an economical and effective protection solution.
