  If a linear electron accelerator is installed into the SPPC (Super
Proton-Proton Collider) complex, ep collision options will be available in
addition to pp collisions. We consider the production of excited electrons with
spin-1/2 at the future SPPC-based electron-proton colliders with center-of-mass
energies of $8.44$, $11.66$, $26.68$ and $36.88$ TeV. In the $ep\rightarrow
e^{\star}X\rightarrow e\gamma X$ signal process, excited electrons are produced
by contact interactions and decay into the photon channel by gauge
interactions. Taking into account the corresponding background process, the
pseudorapidity and transverse momentum distributions of the final state
particles are plotted. We reported the discovery, observation and exclusion
mass limits of excited electrons by applying appropriate kinematical cuts best
suited for amplify the signal of the excited electron signature. We also
investigated the highest achievable values of the compositeness scale for the
discovery of excited electrons at these colliders.
