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"Extremely helpful. They shipped me a replacement unit the next day, and I was up and running within 24 hours. A brand-new replacement from the machinery manufacturer would have had a 7-day lead time."
The Siemens 3RU2136-4FB1 is a robust thermal overload relay designed to provide reliable motor protection. This component is part of the SIRIUS series and is engineered to safeguard motors by preventing overheating, ensuring optimal performance and longevity. It is suitable for standalone installations and features a manual-automatic reset function, offering flexibility in various applications. The relay is compatible with a range of motor sizes, specifically designed for use with motors rated between 28 to 40 amperes. It operates efficiently within a voltage range of up to 690 volts and is equipped with screw-type terminals for both main and auxiliary circuits, ensuring secure and straightforward connections. The 3RU2136-4FB1 is built to withstand harsh conditions, with an operational temperature range from -40 to +70 degrees Celsius and a shock resistance of 8g according to IEC standards. Its compact design, with dimensions of 105 mm in height, 55 mm in width, and 117 mm in depth, allows for easy integration into existing systems. This thermal overload relay is an ideal choice for industries seeking dependable motor protection solutions.
| Specification | Description |
|---|---|
| Part Number | 3RU2136-4FB1 |
| Manufacturer | Siemens |
| Product Type | Thermal Overload Relay |
| Brand Name | SIRIUS |
| Current Range | 28...40 A |
| Size | S2 |
| Installation Type | Stand-alone installation |
| Main Circuit Connection | Screw-type terminals |
| Auxiliary Circuit Connection | Screw-type terminals |
| Reset Function | Manual-Automatic-Reset |
| Insulation Voltage | 690 V |
| Surge Voltage Resistance | 6 kV |
| Protection Class | IP20 (front) |
| Shock Resistance | 8g / 11 ms according to IEC 60068-2-27 |
| Ambient Temperature | -40 ... +70 °C during operation |
| Humidity | 10 ... 95% relative humidity during operation |
| Approvals | Suitable for use in hazardous locations, ATEX certified |
| Application | Designed for motor protection, the Siemens 3RU2136-4FB1 thermal overload relay is a reliable solution for safeguarding motors against overload conditions. It is ideal for industrial applications requiring precise motor protection. |
Absolutely fantastic service. Rob was very helpful. Great communication. The requested part was shipped in no time.Konrad Eliaszuk
Extremely helpful. They shipped me a replacement unit the next day, and I was up and running within 24 hours. A brand-new replacement from the machinery manufacturer would have had a 7-day lead time.Sean Conlin
Found the part we needed at the best price. I spoke with Rob to make sure it was actually in stock, as many companies don’t really have it available to ship. It was ready, checked, and shipped, and we received it within a few days from their German stock. Would definitely use again and recommend.Chris Sentance
First time working with Marvo. They had what I needed, took great care of me, and got my order out right away. I was very impressed with the service and the person I spoke with. I will definitely work with them again in the future.Robert Cohen
After ordering an urgent part from Marvo, I received excellent customer service and Rob was very helpful.Claire Hinchliff
Excellent service, especially from Mark, who stayed late to make sure the part arrived the same day since it was a critical component for me, even though it was my first time using Marvo. I will definitely use them again.Josh Holt
Big thanks to Rob for helping with an urgent request we had on a Friday afternoon. The part we needed was in Europe, and Rob went out of his way to get it ordered and delivered to us by the following Tuesday.City Bearings
Found the part we needed at the best price. I spoke with Rob to make sure it was actually in stock, as many companies don’t really have it available to ship. It was ready, checked, and shipped, and we received it within a few days from their German stock. Would definitely use again and recommend.Chris Sentance
Excellent service, especially from Mark, who stayed late to make sure the part arrived the same day since it was a critical component for me, even though it was my first time using Marvo. I will definitely use them again.Josh Holt
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