From the Manufacturer
Rhino-Hide receptacles include a bus bar with male or female contact inserted into a Santoprene TPV insulator which is protected by a powder coated metal housing and TPV dust cap. A clevis pin (included) and padlock shackle secure the bus bar. Bus bars are available with single or double holes and each is compatible with the full cable range, 313 MCM to 777 MCM. Choose a male bus bar for the power side of the circuit or a female bus bar for the motor load side of the circuit. "X" Version receptacle housings feature a 45-Degree angle stainless steel clevis pin that permits ganging of multiple receptacles in a very close proximity to each other (as close as 1/4-Inch for installation on smaller panels). Rhino-Hide 49 Series Single Pole female Receptacle (Color Coded Metal Housing, Contact, and Dust Cap), Double Hole Bus Bar, Industrial Grade, 313MCM-777MCM Cable, 1000-Volt, 1135 Amp Max. - Blue.
Complete Female Receptacle (Color Coded Metal Housing, Contact, & Dust Cap), Double Hole Bus Bar, 313MCM-777MCM Cable, 1135 Amp Max., 1000V, 49Series, Industrial Grade, Rhino-Hide Single Pole Connector - Blue