The 8MF1000-2HK1 is a pre-assembled copper grounding strap with a 16mm² cross-section, purpose-built for the SIVACON 8MF1 modular industrial cabinet system. It comes with lugs already fitted at both ends—unbolt from the packaging, bolt into the cabinet frame and PE busbar, done.

Where does this grounding strap go in a SIVACON cabinet?

The 8MF1000-2HK1 bonds cabinet structural components to the protective earth (PE) busbar. Typical connection points include the cabinet frame uprights, hinged doors, removable side panels, and mounting plates. The SIVACON 8MF1 modular system is type-tested to IEC 61439, and the protective conductor circuit—including these bonding straps—must maintain continuity under fault conditions. Using the factory-specified strap ensures the cross-section and lug profile match the cabinet PE studs and the short-circuit withstand rating of the assembly.

When should I use the 16mm² strap versus the 31mm² version?

Siemens offers this product in two cross-sections: 16mm² (8MF1000-2HK1) and 31mm² (8MF1000-2HK2). The 16mm² strap covers the majority of SIVACON bonding points—frame sections, doors, and side panels where the PE current under fault conditions does not exceed the 16mm² conductor rating. The 31mm² variant is used for main PE busbar connections and high-current frame bonding points at the incoming section of the cabinet. If the cabinet documentation specifies the 31mm² strap at a particular bonding location, do not substitute the 16mm²—the cross-section is sized to the prospective fault current at that point.