Siemens Overload Relay 1 NO/1 NC, 4A F.L.C, 4A Contact Rating, 0.1W Power, 3P DIN Rail Mount 3RB3113-4PB0

Siemens 3RB3113-4PB0 is a dependable overload relay designed to protect motors from overload and phase failure in industrial and automation applications. This model features a 1 normally open (NO) and 1 normally closed (NC) auxiliary contact configuration, supporting precise motor protection with a full load current rating (FLC) of 4A and contact rating of 4A. It is engineered for 3-phase AC motors operating in sinusoidal 50/60Hz networks.

This overload relay integrates both automatic and manual reset methods, providing operational flexibility according to user requirements. The adjustable current range spans from 1 to 4 A, enabling accurate protection tailored to motor specifications. Its compact design includes DIN rail mounting with a 3-pole configuration and screw-type terminals ensuring easy installation and robust electrical connection.

The device is built to perform reliably within a minimum operating temperature of -25°C and a maximum of 60°C, making it suitable for various industrial environments. The IP20 protection rating offers safeguard against solid particles, enhancing operational safety. Key features include internal ground fault detection, switching position indicator, phase failure and unbalance sensitivity, selectable trip classes (5, 10, 20, and 30), and an electrical remote reset function.

Certified under PTB 09 ATEX 3001, this overload relay meets rigorous safety and performance standards applicable in hazardous locations. The product is manufactured in the Czech Republic to high-quality standards, ensuring durability and consistent performance.

This relay is ideal for applications in industrial automation, manufacturing, electrical control panels, motor protection, and HVAC systems. It provides accurate motor overload protection when paired with Siemens SIRIUS contactors, optimizing system reliability and longevity.

Explore additional Siemens automation and control gear products for comprehensive electrical protection solutions on EnvMart. Suitable for protection of 3 phase AC motors in 50/60Hz sinusoidal networks. Automatic and manual reset for operational flexibility.

Adjustable current setting from 1 to 4 A for motor protection customization. Compact DIN rail mounting and screw terminal type for secure installation. Wide operating temperature range from -25°C to 60°C ensures durability.

Includes internal ground fault detection and phase failure sensitivity. IP20 protection rating enhances safety and reliability. Certified PTB 09 ATEX 3001 for industrial safety standards compliance. Discover more industrial electrical components and Overload Relays on EnvMart to suit your automation system requirements.