The DT3P-DC is a PVC back shell accessory designed for use with DTO4-3P connectors in automotive electrical systems. This component is manufactured from PVC material with a gray finish and provides environmental sealing and strain relief for 3-pole connector assemblies. The back shell measures approximately 21.22 mm in length with a 19.68 mm outer diameter and weighs 5.00 g, featuring a 1.52 mm ±0.25 mm connection interface. It is rated for operation across a temperature range of -29°C to +100°C (-20°F to +212°F), making it suitable for harsh automotive environments. This accessory is commonly used in vehicle electrical harnesses and power distribution systems where connector protection and environmental sealing are required.