Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 1.4A 2A F.L.C 2A Contact Rating 750W 3P 3RU2116-1BB0

Siemens 3RU2116-1BB0 Thermal Overload Relay is a high-performance device designed to protect motors and industrial machinery from damage caused by overheating. Featuring a 1 NO/1 NC contact configuration and supporting a full load current (F.L.C.) range of 1.4 to 2 A, it offers versatile application for motor control and automation systems.

This relay supports a 750 W power rating across a 3-pole arrangement and utilizes screw terminals for reliable connections, facilitating efficient wiring without specialized tools. Its IP20 rating ensures protection against accidental contact with live parts and ingress of solid objects larger than 12 mm, enhancing operator safety.

The relay operates reliably in extreme temperature conditions from -40°C to 70°C, making it suitable for challenging industrial and manufacturing environments. It features both automatic and manual reset options, allowing quick resumption of operations after a trip event while maintaining system safety.

Measuring 87 mm in length, 45 mm in width, and 73 mm in depth, the unit offers a compact and space-efficient footprint ideal for panel installation with direct mount mounting. Its surge voltage resistance of 6 kV enhances electrical protection under transient conditions.

Certified to international standards including IEC 81346-2, IEC 60529, IEC 61508, CE, UL, CSA, CCC, and others, this Siemens overload relay ensures compliance with rigorous safety and performance benchmarks. It is manufactured in Germany, ensuring premium build quality and reliability.

Equipped with 1 NO and 1 NC contact for reliable circuit control. Adjustable current range from 1.4 to 2 A for precise motor protection. Compact design of 87 mm length, 45 mm width, and 73 mm depth for space saving. 3-pole configuration supports 750 W power rating for motor applications.

Screw terminals simplify wiring installation and maintenance. IP20 rating provides touch safety and protection from solid objects over 12 mm. Operational from -40°C to 70°C suitable for industrial applications. Automatic and manual reset capabilities enhance operational flexibility.

Compliance with multiple international standards for safety and reliability.

This relay is an essential component for industrial automation, control gear, motor protection, manufacturing, and electrical applications, offering dependable overheating protection to improve operational longevity and safety. Explore more Siemens products and automation gear at EnvMart for comprehensive industrial solutions.