The Siemens 3RU1116-0FB0 is a thermal overload relay designed to provide efficient protection for motors in the event of an overload. This compact and robust component is part of the SIRIUS product family and is engineered to seamlessly integrate with size S00 contactors. With an adjustable response current range of 0.35 to 0.5 A, it ensures precise protection tailored to specific motor requirements.
Constructed to withstand challenging industrial environments, the 3RU1116-0FB0 operates reliably within an ambient temperature range of -20 to +70°C and can be installed at altitudes up to 2000 metres above sea level without derating. It boasts a finger-safe design, offering enhanced protection against electrical shock, and is rated with an insulation voltage of 690V, with a pollution degree of 3.
The overload relay is equipped with three poles for the main current circuit and features both normally closed (NC) and normally open (NO) contacts for auxiliary circuit control, enhancing its versatility in various control applications. The auxiliary contacts are rated for use with programmable logic controllers (PLCs), ensuring compatibility with modern control systems.
With a trip class of 10, the 3RU1116-0FB0 is designed to provide rapid response to prevent motor damage, and its robust construction includes shock resistance of 8g / 10 ms. The device's direct mounting capability allows for straightforward installation, and its dimensions are optimised for space-saving within control cabinets.
The Siemens 3RU1116-0FB0 thermal overload relay is a reliable and essential component for motor protection in a wide range of industrial applications, offering both performance and durability.