ABB Thermal Overload Relay TF42-20 by ABB Save Liquid error (snippets/product-badge line 32): Computation results in '-Infinity'% $63.15 3 IN STOCK 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart ABB TF42-20 Thermal Overload Relay 16.0-20.0A