65 A AC-3 switching in an S2 frame
The 3RT2038-1AK64: That 65 A figure at 480 V is the rating that decides the motor FLA it can handle; for a 480 V motor, this contactor covers loads up to roughly 65 A full-load current without derating.
Switching frequency and coil ratings
Maximum switching rates are duty-dependent: 700 operations per hour in AC-1 (resistive loads), 500/h in AC-3 and AC-3e (motor starting), 350/h in AC-2 (slip-ring motors), and 150/h in AC-4 (plugging/inching).
Environmental limits and mechanical life
The contactor is rated for 10 million mechanical operations typical, which for most panel applications outlasts the electrical contact life under load. These are the minimum air gaps needed to avoid arc flashover between contactors mounted side-by-side on the same DIN rail.