About The Leviton 5801W 20A 520R Narrow Body Single Receptacle White The Leviton 5801W 20A 520R Narrow Body Single Receptacle is a two pole, three wire grounding receptacle that features large head terminal screws. The Leviton 5801W 20A 520R Narrow Body Single Receptacle is backed out and staked, and accepts number 10 copper or copperclad wire. All of the power contacts of the Leviton 5801W 20A 520R Narrow Body Single Receptacle are triple wipe for maximum conductivity and plug retention.