NEW ARRIVAL: Siemens SIRIUS 3RT2028-1BB44-3MA0 Power Contactor Now Available
Model Description
We are pleased to announce the immediate availability of the Siemens SIRIUS 3RT2028-1BB44-3MA0 power contactor, a robust 3-pole switching device engineered for reliable motor control in Industrial Automation systems. Rated at 38A and 18.5kW at 400V AC, this S0-frame contactor is ideal for controlling motors, resistive loads, and general power switching applications. The unit features a 24V DC coil and integrated auxiliary contacts (2NO + 2NC), enabling flexible control logic without external accessories. Screw-type terminals ensure secure wiring, while the compact design (45mm width) allows dense panel installation. Measuring 92mm × 45mm × 159mm and weighing only 0.35kg, the contactor integrates seamlessly into control cabinets for conveyors, pumps, fans, compressors and packaging machines.
Key Features
The 3RT2028-1BB44-3MA0 delivers exceptional electrical performance with 690V rated insulation and 6kV impulse withstand, ensuring reliable operation in harsh industrial environments. Mechanical life exceeds 10 million operations, while the maintenance-free, non-repairable design guarantees >20 years service life. Integrated mirror contacts (IEC 60947-4-1) provide positive feedback for safety circuits, while IP20 finger-safe terminals and –25°C to +60°C ambient rating ensure robust performance on skids or rooftop HVAC units. CE, cULus, CCC and RoHS approvals validate global projects, and the device is IE3/IE4-ready, supporting future-proof, energy-efficient motor installations.
Related Models in the 3RT2 Series
The SIRIUS 3RT2 family offers scalable power within the same mounting footprint. 3RT2026-1BB44-3MA0 (25A, 11kW) and 3RT2036-1BB44-3MA0 (45A, 22kW) extend capacity for larger motors, while 3RT2028-1BB40-3MA0 provides identical ratings with spring-clamp terminals for tool-free wiring. For alternative voltages, 3RT2028-1BB44-3AA0 (110V AC coil) and 3RT2028-1BB44-3FA0 (230V AC coil) suit different control circuits. All variants share S0 dimensions, common accessories (auxiliary contacts, surge suppressors) and unified TIA Portal integration, enabling one-size panel cut-outs and quick power upgrades without mechanical redesign.
Our Competitive Advantages
As a dedicated industrial automation trader, we provide exceptional procurement flexibility and customer-centric service solutions. Our adaptable payment structures accommodate wire transfer arrangements and customized credit facilities for approved partners, removing financial barriers to urgent maintenance requirements. We maintain significant strategic inventory in regional distribution hubs, enabling delivery within 5-7 business days to most industrial centers worldwide. Our extensive sourcing network spans premium European and Asian sensor distribution channels, ensuring authentic Telemecanique component traceability without geographic restrictions. This multi-channel approach guarantees availability during global supply chain disruptions. Our application engineers provide sensor selection consultation, detection distance calculation, and integration support, assisting with control logic configuration and wiring optimization. Through direct manufacturer partnerships and streamlined logistics, we deliver genuine Telemecanique inductive sensors with accelerated fulfillment cycles and competitive pricing structures.
For immediate quotations or technical consultation, please contact our dedicated sales team.
About Us
We are a focused industrial-automation components trader committed to delivering authentic Siemens SIRIUS solutions with speed, flexibility and technical expertise.