This Cr123C Series thermal overload heater element is built for performance. It is rated for 2.72 to 91.7 amps with a maximum fuse rating of 70. The open version is rated from 3.01 to 3.45 amps, while the enclosed version ranges from 2.95 to 3.38 amps. It is suitable for NEMA Size 00, 0, 1, 2, and 5, each with specific amp ratings. This element is designed for use with thermal overload relays, magnetic motor starters, and motor controls.