Power Twist sockets and connectors are state-of-the-art in power distribution: extremely robust in design, fine-mechanically and ergonomically designed, functionality packed with Lamellar spring, low insertion and extraction forces, minimum contact resistance, self-cleaning. optimum contact - at least 10 contact points, secures the cable firmly in position, protects from water and dust, locks the screw cap in position, heavy duty for extreme environments with exceptional high impact resistance, extreme heat resistant contact carriers, Anti-corrosion contacts, offer protection in aggressive atmospheres,e.g. in chemical plants, food industries. Genuine Austrian high-quality product.