SIRIUS Size S00 Power Contactor with Spring-Loaded Terminals
The Siemens 3RT1015-2AP04-3MA0 is a SIRIUS power contactor in the compact Size S00 frame, rated for 3 kW motor switching at 400 V in AC-2 duty (slip-ring motors, wound-rotor applications). The 24 V DC coil pulls in at 10 A making current, and the spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded — no screwdriver needed for the main circuit.
What the Ratings Mean for Your Panel
AC-2 at 400 V: 3 kW is the motor switching capacity for slip-ring or wound-rotor motors — the contactor handles the higher inrush and longer arcing of those loads. For AC-4 reversing or inching duty (plugging), the same contactor is rated 6.5 A at 400 V. The 24 V DC coil draws 10 A inrush, then holds on lower sealed current; verify your PLC output card can source that surge. Pollution degree 3 means the contactor is rated for industrial environments with conductive contamination — no conformal coating required in a standard IP20 panel. Operating range -25 to +60 °C covers most unheated plant floors and enclosure interiors. Short-circuit coordination: Type 2 (restart after fault) requires a gL/gG fuse rated 20 A; Type 1 (replace contactor after fault) allows a 35 A fuse. The mechanical life is 30 million cycles — this is a high-endurance frame for frequent switching applications.
Mounting and Integration
Snaps onto 35 mm DIN rail per EN 50022, or screws directly to the panel backplate. At 45 mm wide and 114 mm deep, it fits standard 8-module spacing — leaves room for a thermal overload relay alongside. Side-by-side mounting is allowed with no derating in free air; if you pack multiple contactors in a sealed enclosure, check the thermal curve above 40 °C.
Lifecycle and Sourcing
This is a current-production part in Siemens' SIRIUS portfolio. We source it through independent distribution channels; availability and current pricing are confirmed at quote time against an RFQ. For volume or blanket-order requirements, submit the quantity and target lead time.