HPI, High Performance Interconnect System
The HPI (High Performance Interconnect System) is an expertly engineered SPD connection system featuring dual shielding and triple insulation. Designed to minimize interconnection impedance, HPI preserves surge protection efficiency even when cable runs are extended—up to quadruple standard lengths—without increasing clamping voltage. Available in both factory-terminated and field-termination configurations, HPI delivers flexible installation options. Its design enables external mounting of SPDs, simplifying maintenance and reducing internal switchgear hazards. UL-approved for use with Current Technology surge products, HPI ensures low-impedance, reliable, and safe SPD connectivity in critical power protection applications.
- Low-impedance performance: Engineered to minimize connection impedance, maintaining effective SPD performance even with longer cable runs—up to four times standard length
- Flexible installation: Offered either factory-terminated at the SPD end or field-terminated at both ends, catering to variable site requirements
- Enhanced safety & serviceability: Allows SPDs to be mounted outside switchgear, improving installation location options and reducing maintenance risks and internal hazards
- Secure construction: Features dual shielding and triple insulation for robust protection; UL-approved specifically for use with Current Technology SPD products
Product Documents
Description
HPI (High Performance Interconnect System) – Connection System for surge protection devices (SPD) is a dual shield, triple insulated multi-core power conductor specially constructed to minimize interconnection impedance for SPD installations. HPI has UL approval for use with Current Technology SPD products. The ground & neutral shielded design of the HPI SPD Connection System provides the installer with a pre-manufactured SPD termination or a field terminated option with ends unterminated.
- Maximizes SPD unit performance and also allows installation of the SPD unit outside of the switchgear.
- Simplifies installation – Increases installation location options, simplifies installation as well as reduces installation time, improves installation quality, removes hazards of internal SPD installations.
- Flexible solution – Offered either pre-terminated at the SPD end or unterminated at both ends. Interconnect cable length can increase up to 4 times.
Optimize Your Connections with HPI, High Performance Interconnect System for SPDs
Installing SPD (Surge Protection Device) units using standard off-the-shelf cable can increase the clamping voltage unless the cable length is kept short. Current Technology High Performance Interconnect HPITM-SPD Connection System provides the lowest possible impedance connection improving SPD performance. The HPITM-SPD Connection System has 25% of the typical impedance of the regular cable. In addition, they allow the installer to increase the interconnection cable length by up to 4 times, while maintaining the clamping voltages to acceptable clamping voltage levels. Thus, they ensure maximum SPD unit performance. Using the HPITM-SPD Connection System adds more location flexibility within the electrical room and significantly reduces the installation time.
By using the HPITM-SPD Connection System to install the SPD protection unit externally to the switchgear, maintenance is simplified. External SPD units feed from a suitable circuit breaker or fuse. They also reduce hazard service environment with lower arc flash potential and eliminate the need for hazardous environment personal protection.
- Maximizes SPD unit performance
- Allows the SPD unit to be installed outside of the switchgear
- Interconnect cable length can increase up to 4 times
- Increases installation location options
- Simplifies installation and reduces installation time
- Improves installation quality
- Removes hazards of internal SPD installations
- Offered either pre-terminated at the SPD end or unterminated at both ends
Key Features of HPI for SPDs
When installing a SPD unit, users must carefully consider the location and connection system to the electrical system. Elements to consider include: minimizing the clamping voltage, isolation of contaminants, ease of maintenance, and also minimization of facility downtime. Reducing the impedance of the connection between the electrical source and the SPD unit will ensure that the clamping voltage is kept as low as possible. Ideally, there will be “zero” impedance by direct connecting the SPD unit to the electrical system bus assembly. Unfortunately, this practice can present significant future hazards, for example: switchgear contamination and extremely difficult maintenance requiring electrical supply shut down and/or building downtime.
SPD units divert transient surge energy, the result of lightning and other switching activities. In extreme circumstances, the SPD may become self sacrificing to prevent damage to other critical equipment downstream within the facility. When this occurs, the contamination of other electrical components within the same switchboard is possible. To prevent contamination potential, Current Technology recommends the external installation of the SPD to the switchgear using a low impedance connection system.
Brand
DEHN
