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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 2.8-4A Adjustable Current Range 3 kW 3P 3RU2126-1EB0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 87mm |
| Model | 3RU2126-1EB0 |
| Depth | 73mm |
| IP Rating | IP65, IP55 |
| Width | 45mm |
| Mount Type | Direct |
| Series | SIRIUS 3RU2 |
| Power Rating | 3kW |
| Maximum Operating Temperature | 70°C |
| Minimum Operating Temperature | -40°C |
| Terminal type | Screw |
| Standards/Approvals | IEC, WEEE (2012/19/EU), RoHS, UL, CCC, EAC, REACH, UKCA, CE |
| Pay online using | Or choose to pay later via bank transfer |
| RS Stock No. | 706-1611Brand: SiemensManufacturers Part No.: 3RU2126-1EB0 |
| Contact Voltage | 690V ac |
| Reset Method | Automatic & Manual |
| Normal State Configuration | 1 NO/1 NC |
| Relay Contact Current | 4A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3P |
| FLC Motor Rating | 2.8, 4A |
| Adjustable Current Range | 2.8 → 4 A |
Key Features
- Features 1 normally open and 1 normally closed contact configuration.
- Supports 4 A relay contact current and a motor full load current rating of 2.8 to 4 A.
- Includes automatic and manual reset methods for operational flexibility.
- Designed with IP65 and IP55 protection ratings for robust industrial environments.
- Compact dimensions measuring 87mm length, 73mm depth, and 45mm width.
- Wide operational temperature range from -40°C to 70°C suitable for harsh conditions.
- Equipped with screw terminals for secure and reliable connections.
- Complies with IEC, WEEE, RoHS, UL, CCC, EAC, REACH, UKCA, and CE standards.
Product Description
Siemens 3RU2126-1EB0 SIRIUS 3RU2 Thermal Overload Relay is engineered for effective current-sensitive protection of motor loads with normal starting characteristics. Rated for a motor full load current ranging from 2.8 to 4 A and power rating of 3 kW for 3-pole systems, this relay offers dependable overload protection.
This relay features 1 normally open and 1 normally closed contact, supporting a relay contact current of 4 A. It incorporates both automatic and manual reset methods, allowing operators to choose reset modes per application requirements. Screw termination ensures firm and maintenance-friendly electrical connections.
Designed to withstand challenging industrial conditions, the device boasts IP65 and IP55 ingress protection, and an operational temperature range from -40°C to 70°C. Its compact dimensions (87 mm length, 73 mm depth, and 45 mm width) enable easy integration into control panels and assemblies.
The overload relay includes a switch position indicator, test function, and a STOP button for enhanced usability and safety during operation. It resists impulse voltages up to 6 kV and offers insulation voltage of 690 V AC. Mounting can be performed on surface or DIN-rail stands, making it versatile for industrial control setups.
Compliance with numerous global standards including IEC, WEEE, RoHS, UL, CCC, EAC, REACH, UKCA, and CE certifies this device for use in industrial, construction, manufacturing, HVAC, and water treatment applications.
Features 1 NO and 1 NC contact configuration for versatile control. Relay contact current rated at 4 A to handle typical motor protection scenarios. Adjustable current range between 2.8 and 4 A to match motor specifications.
Dual reset methods: automatic and manual for operational convenience. Robust IP65 and IP55 protection levels for dust and water resistance. Compact form factor for easy panel mounting. Wide temperature tolerance ensuring reliable operation in harsh environments.
Screw terminal connections for secure and lasting electrical contact. Impulse voltage resistance of 6 kV for electrical noise protection. Made in Germany guaranteeing premium quality manufacturing standards.
This Siemens SIRIUS Thermal Overload Relay is the ideal solution for safeguarding electric motors from overload faults in various industrial contexts including automation, manufacturing plants, and electrical distribution systems. EnvMart offers this robust overload protection relay as part of our extensive catalog of high-performance industrial control components.
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Frequently Asked Questions
The Siemens SIRIUS 3RU2 Thermal Overload Relay has an adjustable current range from 2.8 A to 4 A.
It has a power rating of 3 kW suitable for 3-pole systems.
The relay measures 87 mm in length, 73 mm in depth, and 45 mm in width.
This model features 1 normally open (NO) and 1 normally closed (NC) contact configuration.
It is designed with IP65 and IP55 protection ratings, making it suitable for dust and water resistance in industrial environments.
The maximum operating temperature is 70°C, while the minimum operating temperature is -40°C.
This relay includes both automatic and manual reset methods, providing flexibility based on application needs.
The relay contact current is rated at 4 A, which is suitable for typical motor protection scenarios.
It complies with IEC, WEEE, RoHS, UL, CCC, EAC, REACH, UKCA, and CE standards.
It is equipped with screw terminals for secure and reliable electrical connections.
It can be mounted directly or on DIN-rail stands, offering versatility for installation in control panels.
It is suitable for use in industrial, construction, manufacturing, HVAC, and water treatment applications.
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