NEW ARRIVAL: Siemens SIRIUS 3RT2027-2BB40 Power Contactor Now Available
Model Description
We are pleased to announce the immediate availability of the Siemens SIRIUS 3RT2027-2BB40 power contactor, a robust 3-pole, 32 A AC-3 motor switching device designed for industrial motor control up to 15 kW at 400 V. Housed in the compact S0 frame (102 × 45 × 107 mm), the contactor features a 24 V DC coil and integral 1 NO + 1 NC auxiliary contacts, allowing direct PLC interfacing without additional blocks. Spring-cage terminals accept 0.5 … 4 mm² conductors and enable tool-free wiring, while DIN-rail or screw mounting provides flexible panel layout. The unit is suitable for conveyor belts, compressors, pumps and HVAC fans where space, reliability and fast commissioning are critical .

Key Features
3RT2027-2BB40 delivers 32 A AC-3, 50 A AC-1 and 690 V rated insulation, ensuring safe switching of high-inrush loads. Mechanical life exceeds 10 million cycles and electrical life > 200,000 cycles at AC-3, reducing maintenance downtime. Low power loss (2.7 W per pole) and ≤ 17 ms pick-up time contribute to energy-efficient, noise-free operation. Integrated mirror contacts (IEC 60947-4-1) provide positive feedback for safety circuits, while IP20 finger-safe terminals and –25 … +60 °C ambient rating guarantee performance in harsh environments. CE, cULus, CCC and RoHS approvals validate global deployment .
Related Models in the 3RT2 Series
The SIRIUS line offers drop-in alternatives for different loads. 3RT2025-2BB40 (25 A, 11 kW) and 3RT2028-2BB40 (40 A, 18.5 kW) share the same S0 footprint, allowing power upgrades without panel modification. 3RT2027-1BB40 provides identical ratings with screw terminals for installations preferring ring-lugs. For reversing duty, 3RT2027-2BF40 adds mechanical interlock, while 3RT2027-2BB44 includes 2 NO + 2 NC auxiliaries for complex signalling. All variants use common accessories—line reactors, surge suppressors, auxiliary blocks—enabling modular, scalable motor control from 7.5 kW to 18.5 kW .
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 products with speed, flexibility and technical expertise.