Schneider A9Y47640

Schneider A9Y47640 is an electronic residual current operated protective accessory under the Acti9 series. It is often used in conjunction with circuit breakers, mainly applied in downstream power distribution outgoing line scenarios. The following is a detailed introduction to its core parameters and key features:

 1. Core Electrical Parameters

 Current Specifications

- The rated current is 40A, and the residual current sensitivity reaches 10mA. It belongs to the instantaneous protection type, which can quickly respond to leakage faults and reduce the risk of electric shock.

- Its leakage protection level is Class A, which is suitable for AC leakage scenarios as well as those involving pulsating DC.

 Voltage and Frequency

- The rated working voltage is 230V AC, and it is compatible with 50/60Hz AC power grids.

- It complies with the GB 16917.22 standard and is suitable for the electrical specifications of domestic power distribution scenarios.

 2. Structural and Installation Features

 Specification and Dimensions

- It has a pole configuration of 1P+N, with the neutral wire (N) located on the left side.

- The width is 36mm, and it adopts a DIN rail mounting method, which is secured tightly with locking clips.

- The circuit connected to the Miniature Circuit Breaker (MCB) is fastened by screws, ensuring firm installation and facilitating later maintenance.

 Environmental Adaptability

- The operating temperature range is from -25℃ to 60℃, enabling it to adapt to most indoor and outdoor power distribution environments.

- It has an IP20 protection rating, which can effectively prevent the intrusion of solid foreign objects and ensure the stable operation of internal components.

 3. Other Practical Features

- This product is equipped with a fault tripping indicator window, which allows for intuitive judgment of whether a tripping action is caused by leakage, facilitating fault diagnosis.

- Meanwhile, it complies with environmental regulations such as RoHS, making it a green certified product, and it also comes with an 18-month warranty service.

- In addition, its operating function is related to the power supply voltage. When used with the corresponding circuit breaker, it can provide reliable leakage protection for downstream power distribution lines, and is commonly used in electricity consumption scenarios with high requirements for leakage sensitivity.

 Practical Application Cases of Schneider A9Y47640

 I. Residential Application

 1. Bathroom Safety Protection System

 Application Scenarios

- Provides high-sensitivity leakage protection for bathroom appliances such as electric water heaters, bathroom heaters, and hair dryers.

- Particularly suitable for wet-dry separated bathrooms and smart home bathroom areas.

 Protection Principle

- When the insulation of equipment is damaged or the human body accidentally touches live parts, the high sensitivity of 10mA triggers protection quickly (≤30ms).

- Prevents the risk of electric shock in humid environments and protects the safety of family members.

 2. Kitchen Appliance Protection

 Application Examples

- Provides circuit protection for integrated kitchen appliances (ovens, microwave ovens, dishwashers).

- Specialized protection for water-electrical-gas hybrid equipment such as garbage disposals and water purifiers.

 Practical Effect

- In a household kitchen renovation case, after installing A9Y47640, it successfully intercepted leakage caused by aging internal circuits of the dishwasher three times, avoiding electric shock and equipment damage

 II. Commercial Premises Application

 1. Protection for Precision Equipment in Office Buildings

 Application Scheme

- Dedicated circuits for server rooms, network cabinets, and office automation equipment.

- Resolves leakage issues of electronic devices such as computers and printers.

 Technical Advantages

- Class A protection feature: Can detect various leakage types including pulsating DC, making it particularly suitable for office environments with dense switching power supply equipment.

- Reduces equipment failures and data loss caused by leakage, and lowers maintenance costs.

 2. Power Distribution System in Commercial Complexes

 Typical Application

- End protection for shopping mall lighting systems, escalators, and elevator control systems.

- Independent leakage protection for groups of kitchen equipment in catering areas.

 Project Case

- In the renovation project of a shopping mall in Beijing, A9Y47640 was uniformly configured in the distribution boxes on the catering floors. This solved the frequent tripping problem caused by leakage in the original system, improved electrical safety, and ensured the normal operation of merchants.

 III. Industrial and Infrastructure Application

 1. Safety Assurance for Automated Production Lines

 Application Scenarios

- Protection for production line conveyor motors, robot workstations, and precision processing equipment.

- Resolves insulation degradation issues caused by equipment vibration and oil contamination in industrial environments.

 Typical Case

- On the assembly line of an auto parts factory in Zhejiang, A9Y47640 was used to protect the automated equipment at key workstations. During an equipment maintenance process, a worker accidentally touched a live part, and the protector acted within 8ms, avoiding a serious work-related accident.

 2. Protection for Medical Equipment and Laboratories

 Professional Application

- Circuit protection for medical instruments in hospital ICUs and operating rooms.

- Protection for precision testing equipment and constant-temperature incubators in laboratories.

 Configuration Features

- Ultra-high sensitivity of 10mA: Can detect tiny leakage to protect the safety of patients and operators.

- Class A protection: Compatible with switching power supplies and frequency converters commonly used in medical equipment.

 IV. Application in Special Scenarios

 1. Central Protection for Smart Home Systems

 Application Example

- Dedicated protection for home smart gateways, central control hosts, and smart distribution boxes.

- Prevents failures of the entire house's smart devices caused by leakage in the control system.

 Practical Case

- In a smart apartment project in Shanghai, A9Y47640 was installed in the smart distribution box of each apartment. During the system commissioning phase, it successfully protected smart home control equipment worth tens of thousands of yuan, avoiding system collapse caused by construction leakage.

 2. Safety Protection for Electric Vehicle Charging Piles

 Application Scheme

- Dedicated circuit protection for home charging piles to prevent electric shock caused by leakage during charging.

- Cooperates with charging pile controllers to achieve dual safety protection.

 V. Key Points for Model Selection and Configuration

 Summary

With its 10mA high sensitivity and Class A protection features, Schneider A9Y47640 has become an ideal choice for modern electrical safety protection. It is particularly suitable for scenarios with dense electronic equipment and high safety requirements. From residential bathrooms to industrial production lines, and from commercial complexes to medical premises, it can provide reliable leakage protection, building a solid defense for people's life safety and the stable operation of equipment 

Installation Note: The A9Y47640 must be used in conjunction with iDPN series circuit breakers. During installation, the neutral wire (N) must be connected to ensure the normal operation of the protection function