Conn. Gen. Stat. § 42a-2A-606
(a) A party that receives notice of a material or indefinite delay in performance or an allocation permitted under section 42a-2A-307 or 42a-2A-605 as to any delivery concerned, or of a breach of the whole lease contract under subsection (c) of section 42a-2A-726, by notice in a record may:
(P.A. 02-131, S. 52.)