The TE Connectivity 2366509-1 is a 48-position receptacle housing from the NTS series, designed for sealed inline wire-to-wire interconnects.
What contacts does 2366509-1 take?
The housing ships without contacts — you order the tab terminals separately. The crimp-style tab contacts are sized for the NTS series; the TPA feature locks them into the housing after insertion, so a terminal that isn't fully seated won't pass the TPA check. That's a real time-saver on a harness build: you don't have to pull each wire to verify retention.
Sealing and environment
The glass-filled PBT resists fuel and oil splash better than standard nylon housings. For a harness that lives on a piece of heavy equipment or a vehicle, this is the kind of housing you spec once and don't revisit.