Based on this product's specifications, here are some alternatives and similar models
Siemens 3RT29161CB00 Surge Protector, 24-48V AC / 24-70V DC
Summary description:
The Siemens 3RT29161CB00 is a high-quality surge protector designed for reliable electrical protection. It supports a nominal input voltage range of 24-48V AC and 24-70V DC with an operating frequency of 50/60 Hz. This compact black module is certified by EAC, UL, and CSA, ensuring safety and compliance for industrial control applications. It is an essential component for safeguarding sensitive equipment against voltage spikes.