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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, 11-16 A FLC, 16A Contact Rating, 7.5 kW 3P 3RU2126-4AB0
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 87mm |
| Model | 3RU2126-4AB0 |
| Depth | 73mm |
| IP Rating | IP20 |
| Width | 45mm |
| Mount Type | Direct |
| Series | SIRIUS 3RU2 |
| Power Rating | 7.5kW |
| Maximum Operating Temperature | 70°C |
| Minimum Operating Temperature | -40°C |
| Terminal type | Screw |
| Pay online using | Or choose to pay later via bank transfer |
| RS Stock No. | 706-1651Brand: SiemensManufacturers Part No.: 3RU2126-4AB0 |
| Contact Voltage | 690V ac |
| Reset Method | Automatic & Manual |
| Normal State Configuration | 1 NO/1 NC |
| Relay Contact Current | 16A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3P |
| FLC Motor Rating | 11, 16A |
| Adjustable Current Range | 11 → 16 A |
Key Features
- Equipped with 1 normally open and 1 normally closed contact for reliable operation.
- Adjustable current range from 11 to 16 amperes for flexible motor protection.
- Screw terminal type ensures secure and stable conductor connections.
- Suitable for 3-pole applications with 16A relay contact current rating.
- Operates within a wide temperature range from -40°C to 70°C for harsh environments.
- Automatic and manual reset methods provide user-friendly control.
- Compact dimensions of 87mm length, 45mm width, and 73mm depth save panel space.
- Compliant with IEC, UL, CSA and various international standards to ensure quality and safety.
Product Description
Siemens 3RU2126-4AB0 is a thermal overload relay from the SIRIUS 3RU2 series designed to protect electric motors in industrial and commercial applications. With a motor full load current rating adjustable between 11 to 16 amperes, this relay safeguards motors up to 7.5 kW by breaking the circuit during overload conditions, preventing damage and downtime.
The device features one normally open (NO) and one normally closed (NC) contact, with a relay contact current rating of 16 amperes, suitable for three-pole (3P) motor protection circuits. The screw terminal type allows robust and secure electrical connections, reducing the risk of accidental disconnections.
This relay is engineered to operate reliably in harsh environments, with a minimum operating temperature of -40°C and maximum of 70°C. Its reset methods include both automatic and manual options, providing flexibility in motor control systems. Rated IP20, the overload relay offers protection against solid foreign objects and implicit contact, enhancing operator safety.
Dimensions of 87 mm (L) x 45 mm (W) x 73 mm (D) make it compact enough to fit in dense control panels without occupying excessive space. It complies with important international standards such as IEC 60068-2-27, CCC, EAC, IEC 65029, UL, IEC 61508, CSA, IEC 81346-2, and CE, ensuring a globally accepted benchmark for quality and safety.
The SIRIUS 3RU2126-4AB0 thermal overload relay is ideal for various industrial applications including manufacturing plants, HVAC systems, water treatment facilities, and automation control equipment, providing dependable motor protection under diverse working conditions.
Equipped with 1 normally open and 1 normally closed contact for reliable operation. Adjustable current range from 11 to 16 amperes for flexible motor protection. Screw terminal type ensures secure and stable conductor connections.
Suitable for 3-pole applications with 16A relay contact current rating. Operates within a wide temperature range from -40°C to 70°C for harsh environments. Automatic and manual reset methods provide user-friendly control.
Compact dimensions save valuable panel space. Conforms to multiple international safety and quality standards. IP20 protection rating for solid object ingress protection. Designed and manufactured in Germany for high reliability.
Explore the full range of Thermal Overload Relays and other control gear products in the Electronics & Electricals category at EnvMart to find optimal solutions for your automation and motor protection needs.
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Frequently Asked Questions
The adjustable current range of this thermal overload relay is from 11 to 16 amperes, allowing for flexible motor protection.
This model has a power rating of 7.5 kW, suitable for protecting motors within that capacity.
It features one normally open (NO) and one normally closed (NC) contact for reliable operation in motor protection applications.
The overload relay has an IP20 rating, providing protection against solid foreign objects and ensuring safety during operation.
This model has compact dimensions of 87 mm in length, 45 mm in width, and 73 mm in depth, making it suitable for dense control panels.
It operates within a temperature range of -40°C to 70°C, making it suitable for harsh environments.
The relay provides both automatic and manual reset methods, allowing for user-friendly control in motor protection systems.
This overload relay is designed for three-pole (3P) applications, suitable for various motor protection circuits.
The relay contact current rating is 16 amperes, which is suitable for the intended applications.
It uses a screw terminal type, ensuring secure and stable connections for the conductors.
It complies with several international standards including IEC, UL, CSA, and others, ensuring quality and safety in various applications.
This thermal overload relay is manufactured in Germany, reflecting high reliability in its design and construction.
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