The invention provides a sealed type switch cabinet. The sealed type switch cabinet comprises a
bus chamber, an instrument chamber, a mechanism chamber, a cable chamber, a switch chamber and a
pressure release channel. The instrument chamber, the mechanism chamber and the cable chamber constitute a front cabinet of the sealed type switch cabinet; the
bus chamber, the switch chamber and the
pressure release channel constitute a rear cabinet of the sealed type switch cabinet; the switch cabinet is successively provided with an upper wire inlet insulator set, a breaker
assembly, a grounding switch and a lower wire outlet insulator set from the top to the bottom; each function chamber in the front cabinet and the rear cabinet are distributed in a stepped mode; the breaker
assembly comprises a support, a breaker, an operation member and a sealing member; when the breaker
assembly is disposed in the sealed type switch cabinet, the sealing member encloses the switch chamber; and the support can remove the breaker assembly out of the switch chamber and the mechanism chamber for detection and maintenance. The sealed type switch cabinet has the advantages of a fixation cabinet, a built-in handcart cabinet and an inflation cabinet, modularization design of an overall unit and a
bus is realized, and the installation and maintenance are safe and simple.