ABB OTL45B4M 45A 4 pole Steel Enc switch Metal Enclosed (Loadbreak) Description Description ABB OTL45B4M 45A 4 pole Steel Enc switch Metal Enclosed (Loadbreak) Related products ABB 2TLA040001R1100 ABB 2TLA040001R0000 ABB 1SFN075112R1000 ABB 2TLA042023R0100 ABB ACS601-0100-3 ABB ACS60100203