Siemens 3RU2116-1CB1

Product Overview

Introduction to the SIRIUS 3RU2116-1CB1 Overload Relay

The SIRIUS 3RU2116-1CB1 is a state-of-the-art thermal overload relay, meticulously designed for motor protection applications. This product represents a pivotal component in safeguarding electric motors against excessive current draw and overheating, thus ensuring the longevity and efficient operation of motor-driven systems. With a focus on reliability and versatility, this overload relay is an essential element in industrial motor control and protection schemes.

Technical Specifications

General Characteristics and Design

The 3RU2116-1CB1 belongs to the SIRIUS 3RU2 product family, characterized by its size S00 configuration, which is company-specific and allows seamless integration with size S00 contactors. This compact relay exhibits a modest power loss of 5.7W during operation (1.9W per pole), making it an energy-efficient option for various applications. The insulation voltage stands at an impressive 690V with a surge voltage resistance of 6kV, underscoring the relay's robustness in industrial environments.

Durability and Resistance Features

Constructed to withstand harsh conditions, the SIRIUS 3RU2116-1CB1 is resilient to shock, with a shock resistance as per IEC 60068-2-27 standards (8g / 11 ms). The device is rated for use in locations with a maximum altitude of 2000 meters above sea level and offers full functionality within a wide ambient temperature range from -40°C up to +70°C during operation. Its temperature compensation abilities and humidity resilience (10 to 95% during operation) further augment its adaptability to fluctuating environmental conditions.

Protective Functions

Overload and Circuit Protection

One of the key features of this relay is the adjustable current response value, ranging from 1.8 to 2.5 A, which ensures precise protection tailored to the motor's requirements. The trip class of CLASS 10 promises a quick response to overload conditions, preventing motor damage due to excessive heat buildup. For short-circuit protection, it requires a gG: 6 A fuse or a quick: 10 A fuse for the auxiliary switch, enhancing the overall safety measures for the device.

Connectivity and Installation

Efficient Installation and Maintenance

The 3RU2116-1CB1 overload relay boasts a user-friendly installation process. Its standalone mounting design allows for installation in virtually any position, and the screw-type terminals provide a secure and reliable connection for both the main and auxiliary circuits. The top and bottom arrangement of electrical connectors for the main current circuit is designed for ease of access and maintenance.

Operational Capabilities

Main and Auxiliary Circuit Characteristics

The main circuit of this overload relay features three poles and is rated for operational currents of 2.5 A at AC-3e at 400 V, supporting operating voltages up to 690 V. The auxiliary circuit includes integrated auxiliary switches with one normally closed (NC) and one normally open (NO) contact, allowing for both disconnection notices and "Tripped" messages, facilitating monitoring and diagnostics.

Safety and Compliance

Safety Standards and Compliance

SIRIUS 3RU2116-1CB1 meets rigorous safety standards, including ATEX directive compliance for explosive atmospheres, ensuring it is suitable for a wide range of industrial applications. The front of the device is designed with IP20 protection class and offers finger-safe touch protection, emphasizing user safety during operation. Additionally, the relay has a low failure rate according to SN 31920, and a high Mean Time To Failure (MTTF) rate, indicating its reliability and quality.

The Reliable Choice for Motor Protection

The SIRIUS 3RU2116-1CB1 thermal overload relay stands out as a reliable and efficient solution for motor protection. Its robust build, coupled with its thermal release mechanism and versatile application range, makes it an excellent choice for industrial settings that demand precision and durability. This product is not just a component; it is a guardian for electric motors, ensuring that they operate within safe parameters and contribute to the smooth and uninterrupted running of industrial processes.

Contact Us Today For More Information About Siemens Products

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