Schneider Electric Circuit Breaker Model A9P28620

The A9P28620 circuit breaker is an iDPN miniature circuit breaker under the Acti9 series by Schneider Electric.

 1. Meaning of the Model

In accordance with Schneider's naming rules for miniature circuit breakers:

- "A9" represents the Acti9 series;

- "P" indicates the iDPN product type;

- "28" is an internal code;

- "6" denotes the C-type tripping characteristic;

- "20" means the rated current is 20A.

 2. Basic Parameters

Pole Configuration: 1P+N  

Rated Voltage: 230VAC  

Breaking Capacity: 10kA  

Tripping Characteristic: C-type  

- It is suitable for conventional residential and commercial lighting circuits. It can quickly cut off the circuit in case of current overload or short circuit, thereby protecting the safety of electrical equipment and circuits.

 3. Product Features

- It integrates multiple protection functions, including short-circuit protection, isolation protection, and overload protection.  

- Equipped with a fault tripping indicator window: the window turns red when a fault tripping occurs.  

- An independent green mark on the handle clearly indicates that the contacts are in the open position.

 4. Applicable Standards

- It complies with Chinese national standards such as GB 10963-1989 "Circuit Breakers for Household and Similar Purposes" and GB 14048.2-1994 "Low-Voltage Switchgear and Controlgear - Low-Voltage Circuit Breakers".  

- Its equivalent international standard includes IEC 60947-2, etc.

As an iDPN miniature circuit breaker in Schneider's Acti9 series, the A9P28620 features a 1P+N pole configuration, C-type tripping characteristic, and 10kA breaking capacity. It is mainly suitable for power distribution protection scenarios and widely used in civil, commercial, and general industrial fields. The specific application scenarios are as follows:

1. Residential Scenarios  

This is one of its most common application scenarios. It can be installed in the incoming distribution box of a residence or the junction boxes in various indoor areas to protect the safety of circuits in different loops. For example, it can be used in the lighting loops of living rooms and bedrooms, the power loops for high-power appliances (such as refrigerators and microwaves) in kitchens, and the loops for water heaters and bathroom heaters in bathrooms. It effectively prevents safety hazards like fires caused by appliance overload or short circuits due to wire aging.

2. Commercial Building Scenarios  

It is well-suited for places such as office buildings, shopping malls, and chain stores. For instance, it can be applied to the power supply loops of office equipment (computers, printers, air conditioners, etc.) in company offices within office buildings, as well as the loops for store lighting, cash registers, and small display appliances in shopping malls. In these scenarios, electrical equipment is concentrated and the fluctuation of electricity demand is relatively small. The circuit breaker can stably provide overload and short-circuit protection, ensuring the continuous safety of commercial electricity use and reducing business interruptions caused by circuit faults.

3. General Industrial Auxiliary Scenarios  

Although it is not suitable for protecting the main circuits of key equipment (such as high-power motors) in industrial production lines, it can be used for power distribution in auxiliary areas of factories. Examples include the lighting loops in workshops, the power loops in office areas, and the small power supply loops for monitoring and ventilation equipment in warehouses. The electricity load in these areas is relatively stable, and there are certain requirements for the accuracy and reliability of protection. The protection performance of the A9P28620 can meet the safety needs of such industrial auxiliary power distribution.

4. Small Public Facility Scenarios  

It is applicable to small public areas like community mini activity centers, street lamp control boxes, small convenience stores, and roadside shops. The power distribution systems in these places are small in scale, and the electrical equipment is mostly conventional lighting and small appliances. With its compact size, the A9P28620 is easy to install in small distribution boxes. Meanwhile, it can provide reliable protection for the simple power distribution loops in these places, meeting the power distribution installation and safety requirements of such scenarios.