A9DA2616 Schneider Acti9 Series Residual Current Protection Accessory

A9DA2616 is a Type A residual current protection accessory under Schneider Electric‘s Acti9 series. Specifically designed for industrial – grade circuit safety, it must be used in conjunction with miniature circuit breakers (MCBs) of the Acti9 series. Its core function is to detect residual current (leakage current) in the circuit. When the leakage current reaches the rated operating value, it quickly cuts off the circuit to avoid electric shock accidents and equipment damage. This product is suitable for scenarios such as solar photovoltaic systems, energy storage battery cabinets and industrial control circuits. It complies with international and national standards including IEC 61008 – 1 and GB 16917.1. Endowed with high reliability, rapid action response and anti – interference capability, it serves as a key component for residual current protection in industrial electrical systems.

1. Core Technical Parameters

III. Installation Procedures (Suitable for Industrial Electrical Systems)

1. Pre – installation Preparation

– Verify that the product model is compatible with the supporting miniature circuit breaker (e.g., Schneider Acti9 C65 series 2P 26A MCB) to prevent current rating incompatibility.

– Inspect the product to ensure there is no external damage, no oxidation on the wiring terminals, and the attached fixing buckles are intact.

– Prepare tools: Phillips screwdriver, 35mm DIN rail, and crimping tool (to ensure firm wiring and reduce contact resistance).

– Power – off operation: Confirm that the main power supply of the installation circuit has been cut off, and use an electroscope to verify that there is no voltage to avoid electric shock.

2. Installation Process
3. Rail Fixation: Install the 35mm DIN rail on the mounting plate of the distribution box or energy storage cabinet, ensuring the rail is horizontal and firmly fixed (reserve sufficient space for product heat dissipation, with a spacing of at least 5mm between adjacent components).
4. Component Assembly: First, snap the MCB into the rail. Then, snap the A9DA2616 residual current accessory closely to the right side of the MCB onto the rail, and lock it with the MCB via the built – in mechanical buckle of the accessory (a “click” sound indicates it is firmly installed).
5. Wiring Specifications:

– Input Terminals (L/N): Connect the phase wire (L) to the input terminal on the left side of the accessory and the neutral wire (N) to the corresponding neutral terminal. The recommended cross – section of the wiring is 1.5 – 6mm² (copper core wire). For photovoltaic systems or energy storage cabinets, it is advisable to use high – temperature resistant and flame – retardant cables (with a temperature resistance of ≥90℃).

– Output Terminals: Lead the circuit from the terminals on the right side of the accessory to the load (such as photovoltaic inverter and Battery Management System (BMS)). Press the terminals tightly during wiring to avoid heat generation caused by loose connections.

– Uninterrupted Neutral Wire: The neutral wire (N) must pass through the zero – sequence current transformer of the residual current accessory and must not be additionally grounded either before or after the accessory; otherwise, false operation may occur.

4. Function Test: After installation, press the “TEST” button on the accessory. If the MCB trips quickly, it indicates that the residual current protection function is normal. Repeat the test three times to ensure consistent operation performance.
5. Installation Notes

– Avoid installing the accessory in environments with strong electromagnetic interference (such as near frequency converters and contactors). If unavoidable, use shielded cables and ground them to prevent false operation.

– When installing in photovoltaic systems or energy storage cabinets, keep the accessory away from heat – generating components (such as inverters and battery modules) to ensure good ventilation and heat dissipation and avoid high temperatures affecting the product service life.

– Strictly distinguish between phase wires and neutral wires during wiring. Never reverse or miss the wiring, as this will result in the failure of the residual current protection function.

– When installing multi – pole accessories, ensure that all phase wires and neutral wires pass through the zero – sequence current transformer without omission.

1. Application Scenarios
2. Core Application Scenarios

– Solar Photovoltaic Systems: It provides residual current protection for branch circuits of photovoltaic modules, input and output circuits of inverters, and internal circuits of combiner boxes. It is suitable for Type A residual current characteristics (pulsating DC leakage generated during the operation of photovoltaic inverters).

– Lithium Iron Phosphate Battery Energy Storage Systems: It realizes residual current protection for branch circuits of battery modules inside energy storage cabinets, BMS control circuits, and circuits around Power Conditioning Systems (PCS), preventing fires or electric shocks caused by battery leakage.

– Industrial Control Circuits: For leakage – sensitive equipment such as motor control boxes, Programmable Logic Controller (PLC) control cabinets, and sensor circuits, its fast action at 16mA can effectively protect the safety of operators.

– Electrical Systems in Commercial Buildings: It forms a triple protection against overload, short circuit and residual current when combined with Acti9 MCBs, which is applicable to central air – conditioning systems, elevator control circuits, large – scale lighting circuits, etc.

2. Scenario Advantages

– Photovoltaic/Energy Storage Scenarios: The Type A residual current operation type accurately matches the leakage characteristics of new energy equipment, avoiding false tripping of traditional Type AC accessories and improving system stability.

– Industrial Environments: It has strong anti – electromagnetic interference capability, can adapt to the complex electromagnetic environment of industrial sites, and features high operational reliability.

– Modular Design: It is seamlessly compatible with Acti9 series MCBs and can be flexibly combined according to project requirements, reducing the system integration cost.

1. Price Analysis and Procurement Suggestions
2. Price Range (2024 Market Reference)

– Wholesale Price per Unit: 180 – 220 RMB (for bulk procurement of no less than 100 units for industrial projects).

– Guided Retail Price: 280 – 350 RMB (for single or small – batch procurement, including value – added tax and shipping costs).

– Package Price: The wholesale price of the combination of A9DA2616 and Schneider C65N 2P 26A MCB is 320 – 380 RMB per set, which saves 15% – 20% compared with separate procurement.

2. Factors Affecting the Price

– Procurement Quantity: For bulk procurement of no less than 500 units, tiered pricing offered by the manufacturer can be enjoyed, with a discount of up to 10% – 15%.

– Supply Cycle: Regular models are available in stock. For customized requirements (such as adaptation to special environments), orders need to be placed 2 – 4 weeks in advance, and the price may increase by 5% – 10%.

– Supplier Channels: Procuring directly from authorized Schneider distributors or the manufacturer not only offers a lower price than unauthorized channels but also entitles customers to original factory quality assurance services.

3. Procurement Suggestions

– Model Matching: Select the residual current operation type based on the load type (photovoltaic, energy storage, or motor), where Type A is suitable for new energy scenarios. Choose the rated current (26A is suitable for medium and low – power circuits) according to the circuit current.

– Quality Assurance: Prioritize purchasing from authorized Schneider distributors to ensure that the product is genuine. This helps avoid potential safety hazards caused by counterfeit products. (The original product comes with a 2 – year warranty and supports nationwide after – sales service.)

– Project Supporting Procurement: For solar power supply system or energy storage project procurement, it is recommended to purchase the product in bulk together with Acti9 series MCBs and distribution boxes. This can help obtain a more favorable package price and simplify supply chain management.

1. Brand and Technical Support

Brand Advantages

As a global leader in industrial electrical equipment, Schneider Electric ensures that its Acti9 series products have passed rigorous industrial – grade tests. With a service life of no less than 10 years, these products are suitable for high – end scenarios such as new energy and industrial control.

Technical Support

Schneider provides services including product selection manuals, installation videos, and on – site technical guidance. Technical documents can be obtained through Schneider’s official website or authorized distributors. The after – sales response time is no more than 24 hours (on – site commissioning services are available for industrial projects).

Schneider Acti9 A9DA2616 Price Guide (November 2025)

1. Price Range

– Official Retail Price: 280 – 350 RMB per unit (including value – added tax, for single or small – batch procurement)

– Wholesale Price: 180 – 220 RMB per unit (for bulk procurement of no less than 10 units for centralized industrial project procurement)

– Package Price: The combination of A9DA2616 and Schneider C65N 2P 26A MCB is 320 – 380 RMB per set, which saves about 15% – 20% compared with separate purchase.

1. Factors Affecting the Price
2. Procurement Quantity

– 1 – 5 units: Approximately 280 – 320 RMB per unit

– 10 – 50 units: Approximately 240 – 280 RMB per unit

– 50 – 100 units: Approximately 200 – 240 RMB per unit

– Over 100 units: Special discounts can be applied for, with the price as low as 180 RMB per unit

Price Adjustment in 2025

Latest Price Adjustment: Starting from March 15, 2025, the prices of Schneider’s A9 series products have been generally increased by about 3%, due to the rise in raw material prices and increased supply chain costs.

III. Model Confirmation and Notes

Product Confirmation

A9DA2616 is a Type A residual current protection accessory of Schneider’s Acti9 series. It must be used with a 2P miniature circuit breaker. With a rated current of 26A and a residual operating current of 16mA, it is suitable for industrial scenarios such as photovoltaic and energy storage.

Summary

The reasonable price range of Schneider Acti9 A9DA2616 as of November 2025 is 280 – 350 RMB per unit for retail and 180 – 220 RMB per unit for wholesale. It is recommended to select an appropriate purchasing channel based on the procurement quantity. Priority should be given to official authorized distributors to ensure product quality and after – sales service. For large – quantity procurement, you can directly contact Schneider’s sales department via WhatsApp at 0086 – 13811255435 to get a more favorable price.