Catalog number 870u-10073. Control panel is rated for 38 kw 480 volt 3 phase duty. Panel wiring diagram is l870n1:c17134/b nema 4 rating. Panel appears to have been constructed for electric heating element controller. Complete with control transformer, 3 phase fuse block rated for 60 amps and secondary fuse block rated for 10 amps. Temperature controller is Athena model xt16. Complete with heater on indicating lamp, overtemp reset button and control circuit on/off switch. Control panel is 24" x 24" x 10" deep.