This is a single Amphenol Helios H4 FEMALE connector with a machined contact sleeve for 10AWG wire. Please be aware that H4 connectors are AWG specific, make sure to order the right size!

Specs and Features:
Rated current - 52A(6.0mm2,AWG10)
Rated voltage - 1000V (IEC/CEI), 600V(UL)
Test voltage - 6kV for 1 minute, 10kV impulse (1.2/50 S)(IEC)
Typical contact resistance - 0.25M OHMS
Contact material - Copper, tin plated
Contact system - Machined/cold formed contact with Radsok insert
Insulation material - PC
Locking mechanism - Snap-lock, special unlock tool required to un-mate as required by NEC2008
Cable strain relief - Compression gland with ratcheting gland nut
Degree of protection - IP68 (1 meter, 1 hour) mated
Safety class - II (IEC61140)
Pollution degree - 2 (IEC60664)
Overvoltage category - III (IEC60664)
Flame class - UL94-V0
Ambient temperature range - (-40C) to (+90C)