SIRIUS reversing starter — 12 A, IP65, with I/O
The Siemens 3RK1395-6LS71-3AD3 is a SIRIUS reversing motor starter rated 12 A at 400 V AC, good for 5.5 kW at 400 V or 7.5 hp at 460/480 V. It's built as a reversing starter — meaning it can switch a motor's direction without an external contactor interlock — and carries trip classes 5, 10, 15, and 20, so you can match the overload protection to the motor's start profile.
Control supply is 20.4 to 28.8 V DC — standard 24 V DC nominal with a decent tolerance band. The main circuit connects via a HAN Q4/2 plug per ISO 23570, so panel wiring is a pre-terminated cable assembly, not individual lugs. Screw fixing to the mounting surface; the unit can be mounted vertical, horizontal, or flat, which helps in tight enclosures.
Where it goes — deployment context
This is a reversing starter with IP65 protection, so it's meant for distributed motor control right at the machine — conveyors, hoists, mixers, or any application needing forward/reverse without a separate reversing contactor pair. The 148 mm depth and 294 mm width give you the envelope for panel layout; the screw-fix mounting and multiple orientation options simplify installation in existing stands or machine frames.