What this 4-position right-angle header does in a terminal block system
The 796866-4 is a Buchanan-series shrouded header that mates with a 5.08mm-pitch terminal block plug — the 4 circuits carry up to 15 A per contact at 300 V, which covers most industrial control and power distribution I/O inside an enclosure.
Pitch, footprint, and the 5.08mm spacing decision
Current, voltage, and the UL rating ceiling
15 A per contact at 300 V is the UL-rated limit — the limiting factor is the contact-to-contact spacing and the PA66 housing temperature rise, not the tin-plated copper alloy pins themselves. Operating temperature from -40°C to 110°C covers indoor industrial cabinets and outdoor telecom shelters where the ambient stays below the housing's continuous rating.
Housing material and flammability rating
Green PA66 (Nylon 6/6) housing rated UL94 V-0 — the material self-extinguishes within 10 seconds on a vertical burn test, required for equipment installed inside a flame-rated enclosure.