What you're sourcing
The ACS480-04-02A7-4: It sits in the Motors & Motor Controls › Drives › Motor Drives category — the same envelope as the ACS380 family, with the ACS480 typically positioned as the panel-mount workhorse for straightforward constant- and variable-torque loads rather than the smaller machine-build ACS380 footprint.
Fit for the panel — what 1.70 kgs actually means
At 1.70 kgs the chassis is a one-person lift into a cabinet; derating is governed by ambient, not mass, so follow the standard ACS-series heat-sink clearance around the unit.
Cross-shop against the ACS380 family
Catalog siblings ACS380-040S-06A9-2, ACS380-040C-02A6-4+K490 and ACS380-040S-04A0-4 are each listed at 1.81 kgs versus the ACS480-04-02A7-4 at 1.70 kgs.
Sourcing posture
The ACS480-04-02A7-4 is specified to order against an RFQ — quote on the order code and current rating as listed, and confirm motor-side current, cable length and any filter options before releasing the line for production, because the frame selection is driven by application fit more than by a like-for-like catalog swap.