Toggle switches can be used as disconnects (typically in cases like 225.39(A) below). A very literal interpretation of the code below would allow for properly rated toggle switches to serve as your disconnect if your circuits are being fed directly from your main panel (because a sub panel would negate the need for another disconnect), but in the case of multiple circuits I think you would want to consider something more like a pull-type disconnect or circuit breakers.
I'll cheat here because I saw your other question:
In the case of a 30A feeder to a sub panel, the breakers in your sub panel become your disconnect for each circuit, or, as pointed out in the comments, if you have a main breaker in your sub panel, this serves as a master disconnect.
225.33 Maximum Number of Disconnects.
(A) General. The disconnecting means for each supply permitted by
225.30 shall consist of not more than six switches or six circuit breakers mounted in a single enclosure, in a group of separate
enclosures, or in or on a switchboard or switchgear. There shall be no
more than six disconnects per supply grouped in anyone location.
(B) Single-Pole Units. Two or three single-pole switches or breakers
capable of individual operation shall be permitted on multiwire
circuits, one pole for each ungrounded conductor, as one multipole
disconnect, provided they are equipped with identified handle ties or
a master handle to disconnect all ungrounded conductors with no more than
six operations of the hand.
225.39 Rating of Disconnect. The feeder or branch-circuit disconnecting
means shall have a rating of not less than the
calculated load to be supplied [...].
(A) One-Circuit Installation. For installations to supply only limited
loads of a single branch circuit, the branch circuit disconnecting
means shall have a rating of not less than 15 amperes.
(B) Two-Circuit Installations. For installations consisting of not more
than two 2-wire branch circuits, the feeder or branch-circuit
disconnecting means shall have a rating of not less than 30 amperes.