Product description:
Boltswitch VLB348 Pressure Contact Switch; 1200 amp, 480 volt, 3 pole, black back plate. Sold used electrically OK. Fuses sold separately.   
 EMSCO # SW-2013-19118- LOC: 3G4                        # SW-2013-19237- LOC: 3Q4           
             # SW-2013-19238- LOC: 3R4                         # SW-2013-19639- LOC: 4T2