Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, 0.32A FLC, 3A Contact Rating, 4.5 W 3RU2116-0DC1

Siemens 3RU2116-0DC1 SIRIUS 3RU2 thermal overload relay is engineered for precise protection of electric motors with a full load current rating of 0.32A and relay contact current of 3A. This device integrates a 1 normally open (NO) and 1 normally closed (NC) contact, enabling versatile control and switching functions in automation panels and industrial electrical assemblies.

The relay supports an adjustable current range from 0.22 to 0.32 A and is designed for DIN rail mounting with spring-loaded terminals delivering secure and quick wiring. It features both automatic and manual reset methods, complemented by a stop button and a selector switch to easily toggle between reset modes.

Compact and durable, the relay measures 79.5mm in width, 45mm in length, and 101.9mm in depth, making it suitable for a variety of controlled environments. It operates reliably within a temperature range spanning from -40°C to 70°C, protected by an IP20 rating to prevent ingress of solid objects.

High impulse voltage resistance up to 6 kV and an insulation voltage level of 690V AC ensure robust performance even in demanding electrical conditions. The product complies with international standards including CSA, UL, IEC 60529, and IEC 60068-2-27, making it suitable for industrial, manufacturing, and automation applications.

Intended primarily for current-sensitive protection of motor loads during standard starting operations, this thermal overload relay complements Siemens Sirius Size S0 & S00 contactors. Its German origin assures premium manufacturing quality and reliability.

This relay features a 1 NO and 1 NC contact configuration for reliable switching. It has an adjustable current range from 0.22 to 0.32 A for flexible application. Mounts easily on DIN rails with spring-loaded terminal type for secure connections.

Compact dimensions include a width of 79.5mm, length of 45mm, and depth of 101.9mm. Designed for operating temperatures from -40°C to 70°C with IP20 ingress protection. Includes manual and automatic reset methods with test and stop button functions.

Constructed to withstand impulse voltages up to 6 kV and insulation voltage of 690V AC. Suitable for current-sensitive overload protection in industrial and automation systems.

This Siemens thermal overload relay is ideal for electrical, automation, and control gear applications in industrial environments including manufacturing plants, automation control panels, HVAC systems, and water treatment plants. It is supported by Siemens' global reputation for robust industrial components. For further exploration, browse more Siemens Overload Relays and related contactors in EnvMart's relays and contactors category.