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The Siemens 3UB81334HW2 is a solid-state overload relay built to provide reliable motor protection. It is designed for use in three-phase systems and can handle currents from 50 A up to 200 A, making it suitable for a range of industrial applications.
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| Manufacturer | Siemens |
|---|---|
| Product Line | Accessories |
| Part Number | 3UB81334HW2 |
| UPC | 662643854916 |
| Weight | 1.00 lbs (0.45 kg) |
| Product | Solid State Overload Relay |
| Min. Current | 50 A |
| Max. Current | 200 A |
| Number of Phases | 3 |
| Size | B |
| Auxiliary Circuit | Without |
| Number of Poles | 3 |
| Mounting Type | DIN Rail |
| Terminal Type | Threaded |
| Contact Form | 1NC and 1NO |
| Operating Humidity | Up to 80% (non-condensing) |
| Storage Humidity | Up to 80% (non-condensing) |
| Maximum Operating Altitude | 1000 meters above sea level without derating |
The 3UB81334HW2 solid state overload relay from Siemens offers enhanced protection for motor circuits operating at three phases. With a minimum current capability of 50 A and a maximum of 200 A, it accommodates varying load requirements efficiently. The size B relay is lightweight, weighing in at just 0.772 lbs, which facilitates easy installation.
This relay is constructed without an auxiliary circuit, simplifying its function for overload protection. It has three poles, ensuring effective control of the associated electrical devices. The relay is designed with a contact form consisting of one normally closed contact and one normally open contact, providing versatility in circuit design.
With the ability to operate in humidity levels up to 80% without condensation, the 3UB81334HW2 is reliable for various environments. It can be stored under the same humidity conditions without risk to its performance. This relay also accommodates operation at altitudes of up to 1000 meters above sea level while maintaining its rated capabilities without derating. The mounting type is DIN rail, and it features threaded terminals for secure wiring connections, enhancing its suitability for industrial applications.