Based on this product's specifications, here are some alternatives and similar models
Siemens 3RM1920-1AA 3-Phase Infeed Terminal for Motor Starters
Summary description:
The Siemens 3RM1920-1AA is a 3-phase infeed terminal designed for the efficient power distribution of 3RM1 motor starters. This component ensures reliable electrical connection and simplifies the wiring process in industrial control cabinets. It is engineered for high-performance motor management systems, providing a secure and compact solution for modular motor starter configurations in various automation applications.