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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, Adjustable Current 5.5 to 8 A, 8 A Contact Rating, 5.5 kW 3RU2126-1HB0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 87mm |
| Model | 3RU2126-1HB0 |
| Depth | 73mm |
| IP Rating | IP20 |
| Width | 45mm |
| Mount Type | Direct |
| Series | SIRIUS 3RU2 |
| Power Rating | 5.5kW |
| 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 | 8A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3 |
| FLC Motor Rating | 5.5, 8A |
| Adjustable Current Range | 5.5 → 8 A |
Key Features
- Features 1 normally open (NO) and 1 normally closed (NC) contact configuration for versatile control.
- Supports a full load current (F.L.C) rating of 8 A suitable for motors up to 5.5 kW.
- Equipped with automatic and manual reset methods for flexible operation.
- Includes a switch position indicator and test function for easy monitoring and maintenance.
- Designed for direct mounting and is compatible with Sirius Size S0 & S00 contactors.
- Constructed with high-quality components for durability and performance in industrial settings.
- Operating temperature range from -40°C to 70°C ensuring reliable usage in varied environments.
- Conforms to multiple international standards including IEC, CE, UL, CSA, and CCC approvals.
Product Description
Siemens 3RU2126-1HB0 SIRIUS 3RU2 Thermal Overload Relay is engineered to provide precise and reliable protection for electric motors with an adjustable current range from 5.5 to 8 A. It features 1 normally open (NO) and 1 normally closed (NC) auxiliary contact, supporting motor ratings up to 5.5 kW and a relay contact current of 8 A, ideal for industrial automation and control applications.
The relay includes a switch position indicator and a test function, facilitating easy diagnostics and maintenance, while the reset method allows both manual and automatic resetting to suit operational needs. Its direct mount design and screw terminal type connections ensure secure installation with compatible Sirius S0 & S00 contactors.
Designed to endure industrial environments, this overload relay operates effectively within a wide temperature range of -40°C to 70°C and provides insulation voltage up to 690 V AC. It complies with recognized standards such as IEC 61508, IEC 60068-2-27, IEC 65029, CE, UL, CSA, and CCC, underscoring its safety and quality credentials.
Compact and robust, the unit measures 45 mm in width, 87 mm in length, and 73 mm in depth, making it suitable for integration into existing control panels without occupying excessive space. Manufactured in Germany, it promises outstanding reliability for industrial, manufacturing, HVAC, and automation use cases.
Features 1 NO and 1 NC auxiliary contact configuration. Adjustable current range from 5.5 to 8 A for tailored protection. Supports motor ratings up to 5.5 kW with an 8 A contact rating. Automatic and manual reset methods for operational flexibility.
Includes position indicator and test function for maintenance ease. Direct mount type with screw terminals for secure connections. Wide operating temperature range from -40°C to 70°C. Certified to IEC, CE, UL, CSA, CCC, and EAC standards.
Compact dimensions for easy installation in control systems. Explore the comprehensive range of Siemens automation and control gear products on EnvMart to find reliable solutions tailored to your industrial applications.
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Frequently Asked Questions
The adjustable current range of this thermal overload relay is from 5.5 A to 8 A.
It supports a maximum power rating of 5.5 kW, suitable for motors within this range.
This model features 1 normally open (NO) and 1 normally closed (NC) contact configuration.
The operating temperature range is from -40°C to 70°C, allowing reliable usage in various environments.
The contact voltage rating for this relay is up to 690 V AC.
It is designed for direct mounting and features screw terminal connections for secure installation.
The relay includes both automatic and manual reset methods for operational flexibility.
The dimensions are 87 mm in length, 45 mm in width, and 73 mm in depth.
It conforms to several international standards including IEC, CE, UL, CSA, and CCC.
The relay contact current rating is 8 A, suitable for various applications.
This model has a total of 2 auxiliary contacts.
This thermal overload relay belongs to the SIRIUS 3RU2 series.
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