Siemens Pushbutton Control Station, Series: 50 Series, 600 VAC, 5 A, 1 Operator, 1NO-1NC, Momentary Contact Mode, 5 A at 600 VAC Contact, Round Flush Operator, Threaded, NEMA 1/B600, Surface Mount, Metal, Gray Enamel Coated, 4-1/8 in H x 2-11/16 in W x 2-3/16 in D