Based on this product's specifications, here are some alternatives and similar models
Eaton ESR5-NV3-30 Safety Relay for Emergency Stop and Protective Doors, 24V DC
Summary description:
The Eaton ESR5-NV3-30 is a safety relay designed for monitoring emergency stop buttons, protective doors, and optical barriers. This unit features 3 normally open contacts and operates on 24V DC. Housed in a yellow casing for high visibility, it is designed for vertical mounting in industrial control cabinets to ensure reliable safety functions in automated systems.