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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC, 2A FLC, 3A Contact Rating, 1.1 kW 3RU2116-1BC1
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 45mm |
| Model | 3RU2116-1BC1 |
| Depth | 101.9mm |
| IP Rating | IP20 |
| Width | 79.5mm |
| Mount Type | Stand Alone |
| Series | SIRIUS 3RU2 |
| Power Rating | 1.1kW |
| Maximum Operating Temperature | 70°C |
| Minimum Operating Temperature | -40°C |
| Terminal type | Cage Clamp |
| Contact Voltage | 690V ac |
| Reset Method | Automatic & Manual |
| Normal State Configuration | 1 NO/1 NC |
| Relay Contact Current | 3A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3 |
| FLC Motor Rating | 2A |
| Adjustable Current Range | 1.4 → 2 A |
Key Features
- Equipped with a contact rating of 3A suitable for various control circuits.
- Adjustable current range from 1.4 to 2 A for precise motor protection.
- Features both automatic and manual reset methods for flexible operation.
- Designed with a cage clamp terminal type ensuring secure electrical connections.
- Compact dimensions of 79.5 mm width, 45 mm length, and 101.9 mm depth optimize panel space.
- Operates effectively within a temperature range of -40°C to 70°C for robust environmental resistance.
- Suitable for mounting as a stand-alone device with surface or DIN rail options.
- Immunity to impulse voltages up to 6 kV ensures durability under electrical stress.
Product Description
Siemens 3RU2116-1BC1 is a thermal overload relay from the SIRIUS 3RU2 series designed for current-sensitive protection of motors up to 1.1 kW power rating. It features a relay contact current rating of 3A and is configured with one normally open (1 NO) and one normally closed (1 NC) contact, making it suitable for various industrial control applications.
The device supports an adjustable current range of 1.4 to 2 amperes, allowing for precise overload protection tailored to specific motor characteristics. Its reset method offers both automatic and manual options, enhancing operational flexibility during maintenance or fault conditions.
With a cage clamp terminal design, the relay ensures secure and reliable wire connections. The compact form factor, measuring 79.5 mm in width, 45 mm in length, and 101.9 mm in depth, facilitates efficient panel space usage.
The relay is built to withstand operating temperatures from -40°C to 70°C and includes resistance to impulse voltages up to 6 kV, making it robust for demanding environments. It complies with key international standards such as UL, CSA, and IEC 60068-2-27, confirming its quality and durability.
This thermal overload relay is suitable for stand-alone mounting on surfaces or DIN rails and pairs effectively with Sirius Size S0 and S00 contactors. Its IP20 rating protects it against solid objects greater than 12 mm but requires sheltered installation for moisture protection.
Contact rating of 3A supports various auxiliary control circuits. Adjustable current range suits multiple motor protection scenarios. Automatic and manual reset adds operational convenience. Cage clamp terminals ensure robust electrical connections.
Compact size for panel space optimization. Wide temperature tolerance supports harsh industrial environments. Impulse voltage resistance enhances longevity and reliability. Stand-alone and DIN rail mounting versatility. Complies with UL, CSA, and IEC standards for safety.
Made in Germany ensuring manufacturing excellence.
This overload relay is ideal for industrial and manufacturing environments, offering precise, dependable protection for electric motors. Perfect for use in automation, electrical control panels, and machinery safety systems. Browse more in the Overload Relay category at EnvMart for compatible Siemens products and related automation controls.
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Frequently Asked Questions
The maximum power rating of this thermal overload relay is 1.1 kW.
The adjustable current range for this model is from 1.4 to 2 A.
This relay has dimensions of 79.5 mm in width, 45 mm in length, and 101.9 mm in depth.
It supports both automatic and manual reset methods, providing flexibility during operation.
The contact rating of this overload relay is 3A, suitable for various control circuits.
The operating temperature range for this model is from -40°C to 70°C.
It is designed with a cage clamp terminal type, ensuring secure electrical connections.
Yes, this relay is suitable for stand-alone mounting as well as DIN rail options.
The IP rating of this relay is IP20, which protects against solid objects greater than 12 mm.
This model has immunity to impulse voltages up to 6 kV, enhancing its durability under electrical stress.
It complies with key international standards such as UL, CSA, and IEC 60068-2-27.
The relay is configured with one normally open (1 NO) and one normally closed (1 NC) contact.
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