Based on this product's specifications, here are some alternatives and similar models
Bettermann FLD2-110 Surge Protection Device for Two-Wire Systems 86VAC/122VDC 2.5kA 5kV
Summary description:
The Bettermann FLD2-110 is a high-quality surge protection device designed for two-wire systems. It features a nominal voltage rating of 86VAC/122VDC, a discharge capacity of 2.5kA, and a protection level of 5kV. This device effectively safeguards sensitive electronic equipment against voltage spikes and transient surges, ensuring reliable operation in industrial and commercial electrical installations.