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The Siemens 3RH1911-1HA12 is an auxiliary switch block that supports multiple applications under the SIRIUS series. It is equipped with 12 normally open (NO) contacts and 2 normally closed (NC) contacts.
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| Manufacturer | Siemens |
|---|---|
| Product Line | SIRIUS |
| Part Number | 3RH1911-1HA12 |
| UPC | 754554415864 |
| Weight | 0.25 lbs (0.11 kg) |
| Product | Auxiliary Switch Block |
| Number of NO Contacts | 1899/12 |
| Number of NC Contacts | 2 |
| Operating Current at AC-15 (230 V) | 6A |
| Mechanical Service Life | 10,000,000 cycles |
| Electrical Endurance at AC-15 (230 V) | 6,000 cycles |
| Protection Class (Front) | IP20 |
| Humidity Range | 5% to 95% non-condensing |
The 3RH1911-1HA12 is an auxiliary switch block from the Siemens SIRIUS series, designed for high-performance applications. It provides a configuration of 12 normally open contacts alongside 2 normally closed contacts. This allows a variety of control and operational functions in electrical systems. Capable of handling an operating current of 6A at AC-15 with a voltage of 230V, the unit is suited for demanding operational conditions.
Mechanical durability is significant, with a service life extending to 10 million cycles, promoting long-term reliability in busy environments. In electrical ratings, it has a proven endurance of 6,000 cycles when operated at the same voltage, ensuring dependable performance. The device also achieves an IP20 protection rating on the front, implying it is safeguarded against the entry of solid foreign objects larger than 12 mm.
Measuring 36.5 mm in depth, 37.5 mm in width, and 41.5 mm in height, the compact dimensions enable convenient integration into various control panels or systems. The lightweight design, weighing 0.039 kg (0.086 lbs.), contributes to ease of installation and mounting, making it an excellent choice for applications where space and weight are key considerations. Furthermore, it operates within a humidity range of 5% to 95% without any condensation, further enhancing its suitability for various industrial conditions.