Electrical requirements
The starting point is the current and the voltage per contact, the number of contacts and the conductor cross sections that the contact system can accept. For signal and data cables, requirements for shielding and characteristic impedance are added; for high voltage, clearance and creepage distances as well as touch protection.
Environment and degree of protection
The degree of protection to the IP code describes how well a housing is protected against foreign bodies and water. IP67, for example, means dust tight and protected against temporary immersion. IP69K stands for protection against high pressure and steam jet cleaning. That is why both degrees of protection are often required for commercial vehicles and agricultural machinery.
The degree of protection only applies to a connector that is correctly mated and fully populated, that is, with matching single wire seals and cavity plugs in every unused cavity.
Mechanics, coding and locking
- Coding prevents similar connectors from being mixed up
- Primary and secondary locks hold the contacts securely in the housing
- Mating cycles: how often is the connector disconnected and mated during servicing?
- Vibration and strain relief at the cable outlet
- Space for assembly and tools
Availability and manufacturing
A technically ideal connector is of little use if it has long lead times or is discontinued. Look for available contacts and seals, suitable crimping tools and, where possible, alternatives. Individual connectors, contacts, seals and cavity plugs are also available through powercable.de. Our design team advises you on the selection for your project.
