RAST 7.5 Power – Compact power interconnects for high voltage and high current applications

18 August 2026 | Lumberg UK Ltd

RAST 7.5 Power – Compact power interconnects for high voltage and high current applications

As power densities continue to increase in heat pumps, energy distribution systems and industrial equipment, connectors are becoming safety-critical design elements. Engineers need solutions that reliably carry high currents, remain thermally stable and enable efficient, cost-effective assembly.

The RAST 7.5 Power system from Lumberg Connect has been developed specifically to meet these requirements. It combines robust mechanics, standards compliance and easy processing in a compact interconnect solution for demanding power applications. Silver-plated contacts, generous insulation distances and proven IDT termination technology ensure low contact resistance, high process reliability and long service life – even in harsh environments.

Key performance features and benefits:

  • Up to 25 A current rating → reliable high-power transmission without overheating
  • 500 V AC rated voltage → ideal for modern energy and power modules
  • Up to 1,000 V (VDE, pollution degree 2) with Lumberg’s dedicated high-voltage material variant
  • 5.7 mm creepage and clearance distances → enhanced electrical safety and standards compliance
  • CTI ≥ 600, insulation resistance > 10 GΩ → dependable insulation under moisture and contamination
  • Silver-plated CuNiSi contacts → low losses and stable long-term contact performance
  • IDT termination → solder-free, fast, repeatable and automation-ready assembly
  • Locking mechanism and UL 94 V-0 housing material → vibration- and flameresistant
  • Operating range −40 °C to +130 °C → suitable for thermally demanding environments
  • 2 to 5 positions, modular combination without pitch loss → flexible integration into compact designs

Conclusion:

RAST 7.5 Power delivers high electrical performance, easy processing and maximum reliability – a future-proof interconnect solution for high-current and high-voltage applications.