Body: Ceramic, arc-proof (models Compression Molded Polyester (model 111). Melamine Phenolic (model 711) Contacts: Silver alloy. Common contact is rounded for assured seating. Self-cleaning with built in wiping action. Terminals: Soldering. 711 also accepts quick connectors; 412, #10 screws; 608, 0.25" bolts.
Typical ceramic style Typical tandem model Model 711: Using 3/8-32 bushing for 1/8" thick maximum panel. Four non-turn lug positions are possible on the single, unenclosed switch. Recesses in body of switch permit positioning of non-turn washer 3, 6 and 9 o'clock."