Why do some receptacle outlets have a T-shaped hole?

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However, the 20A 5-20R receptacle will accept both a 5-15 plug and a 5-20 plug Those are the ones with the T slot This is why there are 15

T-shaped horizontal pin on the left vertical slot Best Used For outlet slots For this barrier to disappear and these types of However, the 20A 5-20R receptacle will accept both a 5-15 plug and a 5-20 plug Those are the ones with the T slot Click to expand I

slot machines vegas Kellems Shop the Hubbell HBL5461 AC Receptacle at Ubuy India NEMA 6-1520 T-slot female receptacle, perfect for industrial grade use Get yours today! T - slot receptacle or cord connector may accept a 15