A snap-action switch including: a housing in which a plurality of fixed contacts (30A,30B) and a plurality of movable contacts (30C,30D) are disposed therein, a plunger configured for depressible movement via an aperture in the housing from a first position in which the plunger is relatively extended outwardly of the housing via the aperture, into, a second position in which the plunger is relatively retracted inwardly of the housing via the aperture; a return spring for biasing the plunger so that it extends relatively outwardly of the housing; a snap-action assembly operably-connected with the plunger, said snap-action assembly being responsive to depressible movement of the plunger so as to effect snap-action type movement of the plurality of movable contacts (30C,30D) between normally opened and normally closed positions with respect to the fixed contacts (30A,30B); a sealing element configured for arrangement around the plunger to occlude ingress of particulates, dust and water from entering the housing via the aperture, said sealing element including a flanged portion; and a securement element configured for arrangement around the sealing element so as to secure the sealing element between the securement element and the rim of the aperture so as to restrict removal of the sealing element from the housing; wherein said snap-action switch is characterised in that the plunger includes a recess disposed in a first end, said recess being shaped and dimensioned for snap-fitting engagement with a barbed element disposed on a portion of the snap-action assembly within the housing such that the plunger is suitably secured to the snap-action assembly for operation with the snap-action assembly, and, wherein said recess is further configured for receiving an end of the return spring therein so that the plunger and the return spring are operably-connected together. a housing in which a plurality of fixed contacts (30A,30B) and a plurality of movable contacts (30C,30D) are disposed therein, a plunger configured for depressible movement via an aperture in the housing from a first position in which the plunger is relatively extended outwardly of the housing via the aperture, into, a second position in which the plunger is relatively retracted inwardly of the housing via the aperture; a return spring for biasing the plunger so that it extends relatively outwardly of the housing; a snap-action assembly operably-connected with the plunger, said snap-action assembly being responsive to depressible movement of the plunger so as to effect snap-action type movement of the plurality of movable contacts (30C,30D) between normally opened and normally closed positions with respect to the fixed contacts (30A,30B); a sealing element configured for arrangement around the plunger to occlude ingress of particulates, dust and water from entering the housing via the aperture, said sealing element including a flanged portion; and a securement element configured for arrangement around the sealing element so as to secure the sealing element between the securement element and the rim of the aperture so as to restrict removal of the sealing element from the housing; wherein said snap-action switch is characterised in that the plunger includes a recess disposed in a first end, said recess being shaped and dimensioned for snap-fitting engagement with a barbed element disposed on a portion of the snap-action assembly within the housing such that the plunger is suitably secured to the snap-action assembly for operation with the snap-action assembly, and, wherein said recess is further configured for receiving an end of the return spring therein so that the plunger and the return spring are operably-connected together.