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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, 45A Full Load Current, 45A Contact Rating 3RU2136-4GB0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 55mm |
| Model | 3RU2136-4GB0 |
| Depth | 104.2mm |
| IP Rating | IP20 |
| Width | 76.5mm |
| Mount Type | Direct |
| Series | SIRIUS 3RU2 |
| 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 | 45A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3 |
| FLC Motor Rating | 45A |
| Adjustable Current Range | 36 → 45 A |
Key Features
- Designed for motor protection with adjustable current range from 36 to 45 amperes.
- Equipped with screw terminals ensuring reliable electrical connections.
- Supports both automatic and manual reset methods for operational flexibility.
- Complies with multiple international standards including IEC, CE, UL, CSA, and CCC.
- Suitable for installation on surface mounts or DIN-rail configurations.
- Operational temperature range from -40°C to 70°C for varied environments.
- Incorporates a stop button, selector switch, and test function for user convenience.
- Rated for contact voltage up to 690V AC and impulse voltage resistance of 6 kV.
Product Description
Siemens 3RU2136-4GB0 Thermal Overload Relay is a high-precision protective device designed for use with SIRIUS Size S0 and S00 contactors. It is rated to handle a full load current of 45 amperes and is configured with 1 normally open (NO) and 1 normally closed (NC) contact, suitable for advanced motor protection in industrial and automation applications.
The relay features an adjustable current range from 36 to 45 amperes, allowing fine tuning to match specific motor characteristics. It supports both automatic and manual reset capabilities for improved operational control. Delivery includes the screw type terminal connections that provide secure and reliable electrical contact, and installation options include surface or DIN-rail mounting, making it convenient for various control panel applications.
Engineered for durability and safety, the unit is rated IP20 for protection against solid foreign objects. The product complies with widely recognized industry standards including IEC 60068-2-30, IEC 60947-5-1, IEC 61508, and certifications such as UL, CSA, CE, and CCC ensuring suitability for global industrial markets. It operates efficiently within a temperature range of -40°C to 70°C, making it robust against harsh environmental conditions.
User-centric features include a switch position indicator, a test function for functional verification, a stop button for immediate shutdown, and a selector switch for manual or automatic reset modes. It is rated for a contact voltage of up to 690V AC and an impulse voltage resistance of 6 kV, supporting high-voltage industrial environments.
Manufactured in Germany, this relay is a reliable choice for industrial automation, HVAC, manufacturing plants, water treatment systems, and other heavy-duty applications requiring precise motor overload protection and control.
Designed for industrial motor load protection using adjustable overload parameters. Compliant with multiple international standards and certifications including IEC, UL, CSA, and CE. Flexible mounting and connection options with screw terminals and DIN-rail compatibility.
Wide operational temperature range for diverse environmental applications. Includes safety and operational features such as test function, stop button, and reset selector. Explore more industrial electrical components and contactors at EnvMart for efficient automation and control solutions.
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Frequently Asked Questions
The Siemens SIRIUS 3RU2136-4GB0 thermal overload relay has an adjustable current range from 36 to 45 amperes.
It is rated for a contact voltage of up to 690V AC.
The dimensions are 55mm in length, 76.5mm in width, and 104.2mm in depth.
This model features screw type terminals for secure electrical connections.
It operates efficiently within a temperature range of -40°C to 70°C.
The relay supports both automatic and manual reset methods for operational flexibility.
It is equipped with 2 auxiliary contacts, configured as 1 normally open (NO) and 1 normally closed (NC).
Yes, it can be installed on surface mounts or DIN-rail configurations, providing flexibility in installation.
It complies with multiple international standards including IEC, UL, CSA, CE, and CCC.
The unit has an IP20 rating, providing protection against solid foreign objects.
It includes a stop button, selector switch for reset modes, and a test function for functional verification.
This thermal overload relay is manufactured in Germany.
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