| Automatic Locking; Positive Grounding by means of phosphor-bronze ground straps; Dust Proof |
| Automatic locking feature mechanically attaches the plug casing to the receptacle or connector and eliminates strain on electrical contacts |
| Casings are positively grounded by means of phosphor-bronze ground straps integral with ground contacts |
| Equipment grounding is secured by separate set of contacts which make first and break last as required by UL |
| On clamp type plugs, a washer is provided in each cap to be forced over the cord |
| This serves as a shield to prevent metal particles, dust, etc., from entering the interiors of plugs |
