Brand: RadioShack. MPN: 278-1456. Our 22-gauge solid copper hook-up wire has many uses. Ideal for various hobby and electronics projects hook-up wire also works great with our protoboards and breadboards. Insulated with a PVC coating this hook-up consists of a single conductor (solid wire). RadioShack hook-up wire is available in multiple colors gauges core types and lengths. 100% solid copper core with a PVC outer jacket. Convenient spool for easy unwinding. Rated for a maximum of 300V 80°C (176°F). UL Listed - verified to meet product quality and safety standards. Specifications Wire Type AWM 1007 Wire Gauge 22 AWG Conductor Type Bare Copper Solid Jacket Material PVC Max. Voltage 300V Max. Temperature 80°C (176°F) Rated for In-Wall Use? No.