What this starter package contains
The 3RA2120-1FH24-0AP0: This is a factory-assembled SIRIUS direct-on-line starter — size S0 frame — that ships as a coordinated set: the contactor (3RT2024-2AP00), the thermal overload relay, the link module (3RA2921-2AA00), and the busbar adapter (8US1251-5NT11) are all included and wired internally. That means you pull it out of the box, snap it onto a 60 mm busbar system, land the motor leads and control wires, and commission it without piecing together separate components.
Rated motor power and trip class
At 400 V, this starter is rated for 1.5 kW motor load in AC-3 duty — that's the standard squirrrel-cage motor starting category.
Mounting and panel integration
The starter is designed to snap directly onto 60 mm busbar systems — the busbar adapter is included and the mounting position is vertical. Dimensions are 45 mm wide, 260 mm high, and 165 mm deep. Clearance: 50 mm above, 20 mm in front, 20 mm at the sides, and 10 mm below. No clearance needed behind the unit. This matters when you're laying out a dense panel — the 45 mm width per feeder means you can pack multiple starters side-by-side on the same busbar run without violating the thermal clearance envelope.