Screw technology with a difference!
The problem: The design strength of the multi-stage shear bolt – the integral predetermined breaking points – is at the same time its decisive weakness. Each breaking point interrupts the load-carrying thread, and the maximum clamping force cannot be achieved. A further disadvantage is that the stages must be very accurately matched to the cable conductor used – otherwise the bolt will break either too high or too low.
The solution: The special design feature of these bolts is that there are no predetermined break points in the thread. This ensures optimum thread loading for any range of cross-sections. The bolt always breaks at the surface of the clamp body.
The technical features:
Large clamping ranges: 10 – 95 mm²; 25 – 150 mm²; 50 – 240 mm²; 95 – 300 mm²; 300 – 630 mm²
Compact design: Rounded edges and flat transitions suitable for slide-on and shrink sleeves
Special variants for high voltage, e. g. in conjunction with PFISTERER IXOSIL cable terminations with clamping ranges up to 2500 mm²
No special tool required
Clean and soft shearing of the shear bolt makes it easier to tighten
Everything flush! Nothing left projecting, nothing has to be filed down
High contact force