Square D 40 kA 3-Phase Panel Mounted Delta Power Systems Surge Protective Device SDSA3650D - The Home Depot
Wiremold/Legrand PA240DCT Hi-Leg Delta Surge Protector (80,000 A per phase), 120/240/120 VAC from Cole-Parmer
ShowMeCables AC Surge Protector SPD I2R-75K DIN-Rail 120/240 Vac 3-Phase Delta (Hi Leg) MOV 75 kA, UL 1449 4th Ed. Type 1 and Type 2, TAA | ShowMeCables.com