The Siemens 3RB3036-1WW1 Electronic Overload Relay is a high-performance microprocessor-based motor protection device engineered to provide accurate and dependable protection for three-phase motors operating in industrial environments. As part of the trusted Siemens SIRIUS 3RB3 Series, this electronic overload relay delivers intelligent protection against overload conditions, phase failure, phase imbalance, and excessive thermal loading. Designed for industrial automation systems where reliability and equipment protection are critical, the 3RB3036-1WW1 helps maximize motor life, reduce downtime, and improve overall operational efficiency. Siemens SIRIUS electronic overload relays are globally recognized for delivering precise motor protection and long-term industrial reliability.
Unlike conventional thermal overload relays that use bimetallic elements, the Siemens 3RB3036-1WW1 utilizes advanced electronic current sensing and microprocessor-controlled evaluation technology. This intelligent monitoring system continuously analyzes motor current and operating conditions, allowing the relay to react quickly and accurately to overload situations before damage occurs. Electronic protection technology provides superior accuracy, improved repeatability, and greater resistance to ambient temperature influences compared to traditional thermal relays.
One of the most important features of the 3RB3036-1WW1 Electronic Overload Relay is its Class 10E tripping characteristic. Class 10E protection is specifically designed for motors operating under normal starting conditions and standard acceleration times. This protection class offers an ideal balance between startup flexibility and rapid fault response, ensuring effective motor protection while minimizing nuisance tripping. As a result, the relay is particularly suitable for applications such as pumps, fans, compressors, conveyors, HVAC systems, packaging machinery, and general industrial automation equipment.
The microprocessor-based protection system continuously calculates motor thermal conditions and evaluates current flow across all phases. By detecting overload conditions before excessive heat can damage motor windings or insulation systems, the Siemens 3RB3036-1WW1 helps prevent costly motor failures and production interruptions. This advanced protection approach significantly improves equipment reliability while reducing maintenance requirements and operational costs.
A key advantage of the 3RB3036-1WW1 Motor Protection Relay is its integrated phase failure and phase imbalance protection. Single-phasing and uneven phase loading are among the most common causes of motor damage in industrial environments. The relay continuously monitors all phases and automatically disconnects the motor whenever unsafe conditions are detected. This proactive protection helps prevent overheating, winding damage, and premature motor failure.
The relay is designed for seamless integration into industrial motor starter assemblies and Siemens SIRIUS control systems. Its compact construction allows easy installation alongside compatible Siemens contactors while optimizing panel space utilization. The robust industrial design ensures dependable performance even in demanding operating environments, making it suitable for manufacturing facilities, water treatment plants, process industries, mining operations, and infrastructure projects.
For enhanced monitoring and automation capabilities, the Siemens 3RB3036-1WW1 includes integrated auxiliary contacts that can be used for overload trip indication, PLC monitoring, fault signaling, alarm systems, and control circuit interruption. These features improve system visibility and simplify maintenance activities by providing real-time status information regarding motor operating conditions.
The relay supports manual reset and automatic reset functionality, providing flexibility for various industrial applications. Automated systems can benefit from reduced downtime through automatic reset capability, while manual reset provides additional operational safety where operator intervention is required. This flexibility makes the relay suitable for both standalone motor starters and sophisticated automation systems.
Built according to Siemens' stringent industrial standards, the 3RB3036-1WW1 Electronic Overload Relay offers reliable operation across a wide temperature range and delivers consistent protection performance throughout its service life. Its rugged construction, intelligent protection technology, and proven Siemens engineering make it an ideal solution for OEMs, panel builders, maintenance engineers, and industrial operators seeking reliable motor protection solutions.
At SBsmart.in, we provide genuine Siemens industrial automation and motor protection products trusted by industries across India. When you purchase the Siemens 3RB3036-1WW1 Electronic Overload Relay, you receive an authentic Siemens SIRIUS motor protection solution designed for superior reliability, enhanced equipment safety, and long-term industrial performance.
| Specification | Details |
|---|---|
| Product Name | Electronic Overload Relay |
| Brand | Siemens |
| Series | SIRIUS 3RB3 |
| Model Number | 3RB3036-1WW1 |
| SKU | 3RB3036-1WW1 |
| Product Type | Microprocessor-Based Overload Relay |
| Protection Technology | Electronic / Solid-State |
| Trip Class | Class 10E |
| Protection Functions | Overload Protection, Phase Failure Protection, Phase Imbalance Protection |
| Application | Three-Phase Motor Protection |
| Mounting Type | Contactor Mounting |
| Main Circuit Connection | Screw Terminal |
| Auxiliary Circuit Connection | Screw Terminal |
| Auxiliary Contacts | 1NO + 1NC |
| Reset Functions | Manual / Automatic Reset |
| Number of Poles | 3 Pole |
| Operating Frequency | 50/60 Hz |
| Rated Insulation Voltage (Ui) | Up to 690V |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Temperature Compensation | Yes |
| Protection Rating | IP20 |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +80°C |
| Relative Humidity | 10% – 95% |
| Standards Compliance | IEC 60947-4-1 |
| Product Family | Siemens SIRIUS Electronic Overload Relays |
| Typical Applications | Pumps, Fans, Compressors, Conveyors, HVAC Systems, Industrial Automation |
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