Made of highly insulating, high voltage resistant material (e.g. phenol, epoxy resin).
Depending on the version and requirement, lacquered inside and out as additional protection against condensed water and chemical effects.
System-specific connector area with SAE, DIN, serrated teeth or M4 connectors.
System-specific bracket, screw or spring clip attachment.
With/without screening cover made of conductive plastic for returning interference to ground and to maintain electromagnetic compatibility (EMC) in accordance with manufacturers' requirements.