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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, Adjustable Current 1.1 to 1.6 A, 1.6 A Contact Rating 3RU2116-1AB0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 87mm |
| Model | 3RU2116-1AB0 |
| Depth | 70mm |
| IP Rating | IP20 |
| Width | 45mm |
| Mount Type | Direct |
| Series | SIRIUS 3RU2 |
| Power Rating | 550W |
| Maximum Operating Temperature | 70°C |
| Minimum Operating Temperature | -40°C |
| Terminal type | Screw |
| Contact Voltage | 690V ac |
| Reset Method | Automatic & Manual |
| Normal State Configuration | 1 NO/1 NC |
| Relay Contact Current | 1.6A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3 |
| FLC Motor Rating | 1.1, 1.6A |
| Adjustable Current Range | 1.1 → 1.6 A |
Key Features
- Offers automatic and manual reset methods for operational flexibility.
- Features 1 normally open and 1 normally closed auxiliary contact configuration.
- Supports operating voltage up to 690 V AC ensuring compatibility with diverse systems.
- Compact dimensions of 45mm width, 87mm length, and 70mm depth for efficient space utilization.
- Designed with screw terminals that enable secure and straightforward wiring connections.
- Operates reliably within a wide temperature range of -40°C to 70°C for harsh environments.
- Includes dual auxiliary contacts supporting 1 NO and 1 NC for precise control and monitoring.
- Equipped with IP20 rating for adequate protection against solid objects.
Product Description
Siemens 3RU2116-1AB0 SIRIUS 3RU2 Thermal Overload Relay delivers efficient protection for electrical motors against overload by monitoring motor current and interrupting power at set thresholds. This relay supports an adjustable current range of 1.1 to 1.6 A with a contact rating of 1.6 A and a power rating of 550 W, making it suitable for a variety of industrial motor applications.
The relay incorporates both automatic and manual reset capabilities to reduce downtime while maintaining system safety and reliability. Its normal state configuration includes one normally open (NO) and one normally closed (NC) contact, enhancing operational monitoring and control. Rated for contact voltage up to 690 V AC, it integrates seamlessly with many industrial automation and control systems.
With a compact form factor of 45 mm width, 87 mm length, and 70 mm depth, the relay allows for optimal use of panel space. The screw terminal type simplifies wiring and connection maintenance. The IP20 rating safeguards the device from solid objects and mechanical impact in controlled environments.
Designed for challenging industrial environments, it operates reliably from -40°C up to +70°C, ensuring performance stability across diverse climatic conditions. Siemens' compliance with IEC 60068-2-27, IEC 81346-2, IEC 61508, IEC 60529, UL, CSA, CE, CCC, and EAC standards confirms its quality and safety suitability.
Common use cases include motor assembly lines, HVAC system protection, conveyor system thermal safeguarding, and various machinery where prevention of motor overload and overheating is critical. Installation is straightforward with direct mount configuration providing secure positioning.
Automatic reset function minimizes operational downtime. Dual auxiliary contacts (1 NO + 1 NC) for enhanced control. Supports motor ratings between 1.1 to 1.6 A. High contact voltage compatibility of up to 690 V AC. Compact design with efficient space utilization.
Reliable operation under wide temperature ranges. Complies with multiple international safety standards. Explore more Siemens automation and control gear products on EnvMart for reliable industrial electrical solutions.
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Frequently Asked Questions
The adjustable current range for this model is from 1.1 to 1.6 A.
It has a contact voltage rating of up to 690 V AC.
This model has compact dimensions of 45 mm in width, 87 mm in length, and 70 mm in depth.
The power rating for this thermal overload relay is 550 W.
It offers both automatic and manual reset methods for operational flexibility.
This relay includes two auxiliary contacts, configured as one normally open (NO) and one normally closed (NC).
It operates reliably within a temperature range of -40°C to 70°C.
It is designed with screw terminals that enable secure and straightforward wiring connections.
The normal state configuration includes one normally open (NO) and one normally closed (NC) contact.
It complies with multiple standards including IEC 60068-2-27, IEC 61508, and UL among others.
The relay is designed for direct mounting, providing secure positioning.
Common applications include motor assembly lines, HVAC system protection, and conveyor system thermal safeguarding.
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