Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 3.5-5A F.L.C 5A Contact Rating 1.5 kW 3RU2116-1FC0

Siemens 3RU2116-1FC0 is a SIRIUS 3RU2 series thermal overload relay designed for effective motor protection in industrial and commercial electrical systems. This relay offers a 3.5 to 5 amp adjustable current range with a power capacity of 1.5 kW at 3 poles, making it suitable for loads requiring sensitive current protection and reliable overload detection.

The device integrates 1 normally open (NO) and 1 normally closed (NC) contact, enabling precise control of motor circuits under overload conditions. The relay features both automatic and manual reset methods, allowing easy operational flexibility for different applications.

Its cage clamp terminal type ensures robust and secure wiring connections, while the IP65 and IP55 protection ratings provide resistance against dust, water, and environmental contaminants, allowing use in demanding industrial environments. The operating temperature range from -40°C to 70°C ensures performance stability in harsh conditions.

With dimensions of 45mm width, 87mm length, and 73mm depth, this compact relay is designed for direct mounting and fits well in motor control centers. The relay supports a contact voltage of up to 690V AC and offers high insulation voltage and impulse voltage resistance of 6 kV, ensuring electrical safety and performance integrity.

Manufactured in Germany, it complies with prominent international standards such as CCC, UKCA, WEEE, UL, EAC, REACH, CE, and RoHS, attesting to its quality and regulatory compliance.

Typical industrial use cases include automation control, motor protection for HVAC systems, manufacturing processes, water treatment plants, and other heavy-duty electrical motor-operated applications. This thermal overload relay is designed especially for Sirius Size S0 and S00 contactors and provides precise current-sensitive load protection to extend motor life and minimize downtime.

Features 1 normally open and 1 normally closed contact for effective switching. Supports a full load current rating of 5A and 5A relay contact current. Equipped with automatic and manual reset methods for flexible operation.

Designed with cage clamp terminals ensuring secure connections. IP65 and IP55 rated for protection against dust and water ingress. Operates reliably in temperatures ranging from -40°C to 70°C. Compact dimensions with 45mm width, 87mm length, and 73mm depth.

Suitable for 3-pole configurations and direct mount type. High insulation voltage of 690V AC and impulse voltage resistance of 6 kV. Complies with multiple international standards including CE, UL, and RoHS. Explore the full range of Siemens Thermal Overload Relays and contactors at EnvMart for reliable motor and automation control solutions.