<p>The accessory in question is a robust and reliable component designed to meet the demanding requirements of industrial and commercial applications. With a rated current of 250 A and a rated voltage of 690 VAC/VDC, this accessory ensures efficient performance in high-power environments. Its compatibility with both alternating current (AC) and direct current (DC) systems offers versatility for various electrical setups.</p><p>This product features a single pole configuration, making it straightforward to integrate into existing systems or new installations. The degree of protection is rated at IP20, providing adequate protection against solid foreign objects larger than 12.5 mm, which is suitable for many indoor applications where dust and accidental contact need to be minimized.</p><p>Designed for use with NHG1 and M1 devices, this accessory seamlessly fits into these systems, ensuring that users can maintain consistency across their electrical installations. The cable entry accommodates cables up to 120 sq-mm, allowing for substantial wiring capacity without compromising on safety or efficiency.</p><p>The fuse size supported by this accessory is NH1, which indicates its capability to handle significant electrical loads while providing necessary overcurrent protection. This makes it an ideal choice for safeguarding equipment from potential overloads or short circuits.</p><p>The open base type design facilitates easy installation and maintenance access. Users will appreciate the straightforward assembly process that minimizes downtime during setup or service intervals.</p><p>In summary, this accessory combines essential features such as high current and voltage ratings with practical design elements like IP20 protection and compatibility with specific device types (NHG1, M1). Its engineering caters to professionals seeking reliable components that deliver consistent performance in demanding settings without unnecessary complexity or frills.</p>