Active production — what that means for procurement
The 3RA2120-4DD27-0AP0 is a size S0 unit, built around the 3RT2027-1AP00 contactor and the 3RA2921-1AA00 link module — a common, well-supported platform for motor control panels.
AC-3 rating and trip class — what they mean for motor protection
Maximum operating voltage is 690 V, so it's suitable for 400 V and 480 V line supplies common in industrial plants.
Mounting on 60 mm busbars — panel integration
Designed for snapping onto 60 mm busbar systems — the standard metric busbar pitch used in European-style distribution panels — so it installs without a DIN rail adapter. Dimensions are 260 mm high, 45 mm wide, 155 mm deep, with a vertical mounting position required for proper thermal performance. Clearance requirements: 50 mm above, 20 mm forward, 10 mm below, 20 mm at the sides, and 0 mm behind — the back can sit flush against the panel backplate. Main circuit connections are screw-type terminals, which are field-friendly for copper lugs or ring terminals up to the rated cross-section.
Environmental range and storage
Operates from -20 to +60 °C, with storage and transport limits from -50 to +80 °C — wide enough for unheated warehouses and shipping containers.