Siemens Alpha 8GK4752-5KK Fuse-Load Disconnector Strip, 3-Pole, NH00, 160 A, 690 V AC 8GK47525KK25

In low-voltage power distribution, safely isolating circuits while maintaining fuse protection is critical. The Siemens Alpha 8GK4752-5KK fuse-load disconnector strip provides a compact, busbar-mountable solution for 3-pole NH00 fuse systems, enabling reliable switching and protection up to 160 A at 690 V AC.

Who is it for

Panel builders, electrical contractors, and maintenance engineers who need a robust disconnector strip for industrial control panels and distribution boards. It suits applications where front-operated isolation and fuse replacement must be quick and safe.

Main features

• 3-pole design for three-phase circuits
• Accepts NH00 fuse links for short-circuit protection
• Rated operational current 160 A, operational voltage 690 V AC
• Busbar mounting on 60 mm system for easy integration
• Screw terminals accommodate conductors from 1.5 to 95 mm² rigid
• Front-operated direct mechanism for clear switching
• Insulating housing for electrical safety

Specifications

• Product type: Fuse-load disconnector strip
• Series: Siemens ALPHA 8GK
• Number of poles: 3
• Fuse size: NH00
• Rated operational current (Ie): 160 A
• Rated operational voltage (Ue): 690 V AC
• Rated insulation voltage (Ui): 1000 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Mounting type: Busbar mounting (60 mm system)
• Connection type: Screw terminals
• Terminal capacity: 1.5 - 95 mm² (rigid), 1.5 - 70 mm² (flexible)
• Degree of protection: IP20 (front side, when installed)
• Short-circuit breaking capacity: 120 kA (with appropriate NH fuses)
• Operating temperature range: -25 to +55 °C
• Storage temperature range: -40 to +70 °C
• Housing material: Insulating material

Tips

Ensure correct fuse links are installed before energizing. Verify busbar compatibility and torque screw terminals to manufacturer specifications for reliable connections.