The load break switch with fuse 63A, model 3KF1306-4LB11 from Siemens, is a highly advanced device designed for demanding applications in low-voltage circuits. With a rated current of 63 amperes and a rated voltage of up to 690 volts, this 3-pole switch provides a reliable solution for disconnecting and securing electrical installations. The switch is optimized for use with NH fuses size 000, allowing for safe circuit disconnection, making it ideal for main, emergency stop, or repair applications. Its robust construction ensures high short-circuit resistance and contributes to the availability of installations. Additionally, the switch is easy to install and can be retrofitted with extensive accessories to integrate additional functions as needed.

• Versatile use with door coupling or direct drive in five sizes
• Easy retrofitting of functions through extensive accessories
• Reliable protection against electrical accidents through locking functionality and touch protection
• Robust technology with high short-circuit resistance for high system availability
• Safe protection even for wind power plants up to 690 V + 10%.