  We present a search for excited electrons, neutrinos and quarks using the H1
detector at the $ep$ collider HERA, based on data taken in 1994 with an
integrated luminosity of 2.75 pb$^{-1}$. Radiative decays of excited quarks and
neutrinos have been investigated as well as decays of excited electrons into
all possible electroweak gauge bosons. No evidence for new particle production
is found and exclusion limits are derived.
