TBSN-330 ON/OFF 3 Phases Self Locking Push Buttton Switch 30A 3.7KW Product Name : Power Push Button Switch;Model : TBSN-330;Type : Self Locking ON/OFF, 3P Working Current : 30A;Power : 3.7KW Total Size (Approx.) : 10 x 6 x 5.5cm / 3.9" x 2.4" x 2.2" (L*W*H);Wire Hole Dia : 1.8cm/0.7" Color : Gray, Black, Red;External Material : Metal, Plastic Weight : 232g;Package Content : 1 x Power Push Button Switch