Contains 1 set of plastic insulators (top / bottom) and fixing screws to be used where the overload relay power terminals external dimension exceed the busbar external dimension.DocumentsWEG RW_E Series Overload Relays Brochure Related Products Quick view IBRW317 $2.64 MSRP: $4.00 Phase Barrier Quick view 6354C08G01 $6,592.77 MSRP: $8,790.35 Inter Phase Barrier Quick view LDRSF11 $19.29 MSRP: $42.38 Dc Switch Phase Barrier A Quick view LDRSF13 $36.48 MSRP: $80.18 Dc Switch Phase Barrier C Quick view LDRSF21 $28.73 MSRP: $63.14 Dc Switch Phase Barrier D