Siemens Fuse Switch Disconnector, 3 Pole, 400A Max Current, 40kA Fuse Current

This fuse switch disconnector is engineered for robust electrical circuit protection and management. Designed for floor mounting, it features three poles and accommodates up to 400A of current while maintaining high safety standards. The unit is constructed with an enclosed design suitable for various environments, ensuring reliable performance across a wide operational temperature range of -25°C to +55°C.

• 3-pole configuration allows effective circuit disconnection
• Rated for a maximum current of 400A to support substantial loads
• Offers auxiliary contact options for additional functionalities
• High let-through current capacity of 40kA ensures safety under fault conditions

• Used in industrial power distribution systems
• Suitable for electrical installations requiring high-level protection
• Ideal for automated machinery and equipment
• Utilised in maintenance and repair switches for added safety

The operational temperature range for safe functioning is from -25°C to +55°C, ensuring versatility in various environments.

The enclosed design simplifies installation, providing added protection against dust and moisture while ensuring safety standards are met.

This model allows for auxiliary contact integration, phase failure monitoring, and locking capability for enhanced functionality and safety.

It accommodates NH1 and NH2 fuse sizes, making it suitable for a variety of applications that require different fuse ratings.

The power factor ratings of 0.65 at AC-22 B and 0.35 at AC-23 B indicate operational efficiency and load adaptability under varying conditions.