The Mitsubishi spring-energy storage actuator MDSAD240-NF2SVE is an electric operating device for circuit breakers of the NF-W105 series. It functions as a motor drive that supports switching operations of the circuit breaker via spring-energy storage, enabling reliable and energy-efficient actuation. The device is designed for use in industrial facilities where fast and secure switching functions are required, for example in power supply systems, manufacturing technology, or applications with high load demands.

Applications
This operating device is specifically designed for circuit breakers of the NF-W105 series and is used in installations where electrical actuation of the switch is required. It is suitable for use in industrial environments subject to high mechanical and electrical loads. Typical applications include switchgear systems operated with AC or DC voltages, enabling remote or automated switching functions.

Functions and Features in Detail
The MDSAD240-NF2SVE operates as a spring-energy storage device, where energy for the switching movement is stored in a spring by means of a motor. This enables fast and powerful switching movements, even during power interruption, as the spring provides the necessary energy. Actuation is performed by an integrated motor that winds the spring, thereby enabling the switching function. The spring-energy storage ensures high reliability, as the switching function remains operational even during brief power outages or voltage fluctuations.

Technology Explained Simply
The device operates with a voltage range of AC 100–240 V and DC 100–250 V, allowing flexible integration into various electrical systems. These voltage ranges cover both standard alternating voltages and direct voltages commonly found in industrial facilities. The spring-energy storage works on the principle that the motor winds the spring, which then performs the switching movement. This reduces energy consumption, as the motor is only required to wind the spring and not during the switching movement itself. The construction is robust and designed for industrial environments.

Compatibility and Accessories
The device is specifically designed for circuit breakers of the NF-W105 series by Mitsubishi. It is not a universal accessory, but rather a specific replacement or add-on part for this breaker series. Compatibility is limited to the NF-W105 series, and there is no information available regarding other compatible breaker models. Use with other breaker types is not intended and not recommended.

Mounting and Installation
Mounting is performed directly onto the NF-W105 series circuit breaker. No special mounting kit is required, as the device is designed for direct integration into the breaker’s construction. Electrical connections are made via designated terminals compatible with operating voltages of AC 100–240 V and DC 100–250 V. Installation does not require special tools, but proper electrical connections and mechanical fastening are necessary to ensure operational safety.

Operational Advantages
Using the spring-energy storage actuator provides high operational reliability, as the switching function remains functional even during brief power interruptions. The mechanical robustness and low maintenance frequency reduce operational effort. The integrated spring-energy storage ensures fast and powerful switching movements, increasing reliability in critical applications. Compatibility with standard AC and DC voltages simplifies integration into existing systems.