Product Description

Siemens Thermal Overload Relay 22–32 A, Class 10, Size S2, Contactor Mounting – 3RU2136-4EB00-8K

Product Description

The Siemens 3RU2136-4EB00-8K is a genuine SIRIUS 3RU2 Thermal Overload Relay designed to provide reliable overload and phase-failure protection for three-phase induction motors. Featuring an adjustable current range of 22–32 A, Class 10 tripping characteristic, and a Size S2 frame, this relay ensures accurate thermal protection against overload conditions, helping extend motor life and improve system reliability. It is designed for direct contactor mounting, allowing seamless integration with compatible Siemens S2 contactors to create a compact and space-saving motor starter assembly. The relay is equipped with screw terminals for both the main and auxiliary circuits and supports manual and automatic reset for flexible operation and easy maintenance.

The Siemens 3RU2136-4EB00-8K is widely used in Motor Control Centers (MCCs), industrial control panels, OEM machinery, pumps, compressors, conveyor systems, HVAC equipment, water treatment plants, and manufacturing industries. Its temperature-compensated thermal tripping mechanism accurately detects overload and phase-failure conditions, reducing motor damage, minimizing downtime, and ensuring dependable performance in demanding industrial environments.

At SB Smart, Faridabad, we supply 100% genuine Siemens SIRIUS Thermal Overload Relays, Contactors, Motor Protection Circuit Breakers (MPCB), Soft Starters, MCCBs, MCBs, PLCs, HMIs, VFDs, and Industrial Automation Products at competitive prices. We provide GST invoices, expert technical support, bulk order pricing, secure packaging, and fast delivery across Faridabad, Delhi NCR, Mumbai, Pune, Bengaluru, Chennai, Hyderabad, Ahmedabad, Kolkata, and all major cities in India.

Key Features

• Genuine Siemens SIRIUS 3RU2 Thermal Overload Relay

• Model: 3RU2136-4EB00-8K

• Adjustable Current Range: 22–32 A

• Class 10 Tripping Characteristic

• Frame Size: S2

• Direct Contactor Mounting

• Main Circuit: Screw Terminal

• Auxiliary Circuit: Screw Terminal

• Manual and Automatic Reset

• Phase Failure Sensitive Protection

• Temperature-Compensated Operation

• Compact and Durable Industrial Design

• Long Service Life

Applications

• Motor Control Centers (MCC)

• Industrial Control Panels

• OEM Machinery

• Pumps and Compressors

• Conveyor Systems

• HVAC Systems

• Water Treatment Plants

• Manufacturing Industries

• Process Automation

• Industrial Motor Protection

Benefits

• Protects motors against overload and phase-failure conditions

• Extends motor service life

• Reduces unexpected downtime and maintenance costs

• Compact contactor-mounted design saves valuable panel space

• Quick and easy installation

• Accurate Class 10 thermal protection

• Reliable performance in demanding industrial environments

• Genuine Siemens quality for long-lasting operation

Frequently Asked Questions (FAQs)

Q1. What is the Siemens 3RU2136-4EB00-8K used for? The Siemens 3RU2136-4EB00-8K is a thermal overload relay designed to protect three-phase motors from overload and phase-failure conditions. It is intended for direct mounting on compatible Siemens S2 contactors.

Q2. What is the adjustable current range? The relay features an adjustable overload setting from 22 A to 32 A, making it suitable for a wide range of industrial motor applications.

Q3. What type of mounting and terminals does it use? It is designed for direct contactor mounting and includes screw terminals for both the main circuit and auxiliary circuit, ensuring secure and reliable electrical connections.

Q4. Does the relay support manual and automatic reset? Yes. The 3RU2136-4EB00-8K supports both manual and automatic reset, allowing flexible operation for different industrial motor control applications.

Q5. Why buy Siemens 3RU2136-4EB00-8K from SB Smart Faridabad? SB Smart, Faridabad offers 100% genuine Siemens industrial automation products with competitive pricing, GST invoices, expert technical support, bulk order assistance, and fast delivery across India for OEMs, panel builders, contractors, and industrial customers.