Product Overview
The Siemens SIRIUS 3RT2016-2BB44-3MA0 is a high-performance, 3-pole power contactor from the compact and modular SIRIUS 3RT2 series, specifically engineered for switching motors. Featuring a 24V DC control voltage and robust spring-loaded terminals, this contactor is rated for 9 A (AC-3e/AC-3) and up to 4 kW at 400 V. It includes a factory-fitted, captive auxiliary switch with a configuration of 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, making it ideal for safety-relevant applications (often denoted for SUVA applications) and complex control circuits. Its compact Size S00 design ensures space efficiency in control cabinets.
Key Benefit
- Exceptional Reliability: Part of the SIRIUS modular system, ensuring high contact reliability and long mechanical service life (typically 10 million operating cycles).
- Space-Saving Design: Extremely compact Size S00 footprint optimizes control panel space, reducing overall cabinet size and cost.
- Fast, Secure Wiring: Spring-loaded terminals (also known as spring-type or push-in terminals) offer fast, reliable, maintenance-free, and vibration-proof wiring connections compared to traditional screw terminals.
- Integrated Auxiliary Contacts: Features a permanent, captive auxiliary switch (2 NO + 2 NC), simplifying design and reducing assembly complexity for monitoring and control circuits.
- Global Standard Compliance: Approved for worldwide use (IEC, UL/CSA, CCC, etc.) and is IE3/IE4-ready, supporting current and future energy-efficient motor applications.
- DC Control: Operates reliably on a 24V DC control voltage, common in modern industrial automation systems.
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