The housing is natural nylon (polyamide), free-hanging for in-line wire harnesses, and uses a detent lock for positive retention once mated.
The 1-480303-0 accepts standard Commercial MATE-N-LOK female socket contacts (tin or gold plating, depending on your current and cycle-life requirements). Confirm your wire gauge against the contact's range before committing the BOM line.
The mating connector is a Commercial MATE-N-LOK pin header or receptacle with the same 0.200" (5.08mm) pitch and a detent lock feature. The single-row, 3-position layout means the mating half must also be 3 circuits and single row — a 6-position header won't align.
Rated for 0°C to 105°C operating temperature. Not sealed — no IP rating listed.