The Siemens 3NP1143-1DA10 SENTRON Fuse Switch Disconnector is a high-performance switching and protection device designed for safe operation in low-voltage power distribution systems. As part of the trusted SENTRON 3NP1 Series, this fuse switch disconnector combines switching, isolation, and fuse protection functions within a compact and robust design.
The 3NP1143-1DA10 features a 3-pole configuration, 250A rated current, and compatibility with NH0 and NH1 fuse links. Designed for mounting plate installation with flat terminal connections, it provides dependable electrical performance and safe isolation for industrial and commercial applications. It is supplied without fuse monitoring, making it an economical and reliable solution for standard distribution requirements.
Available through SB Smart, this Siemens fuse switch disconnector is widely used in switchgear assemblies, power distribution panels, motor control centers, OEM equipment, industrial plants, and infrastructure projects where reliable switching and circuit protection are essential.
The Siemens 3NP1143-1DA10 is designed to safely switch electrical loads and isolate circuits during maintenance or servicing operations. Its robust switching mechanism allows operators to disconnect power securely while maintaining high operational safety standards.
Supporting NH0 and NH1 fuse links, the unit provides effective overload and short-circuit protection when equipped with suitable fuse inserts. The mounting plate design enables straightforward installation in electrical panels and switchgear systems while optimizing available panel space.
The device is particularly suitable for applications where dependable circuit isolation and long-term reliability are critical.
Manufactured according to Siemens' rigorous engineering standards, the 3NP1143-1DA10 Fuse Switch Disconnector delivers excellent performance in demanding environments.
Key operational benefits include:
Its heavy-duty construction ensures dependable performance in industrial, commercial, and infrastructure installations.
The Siemens 3NP1143-1DA10 is ideal for:
At SB Smart, we supply genuine Siemens electrical products, switchgear solutions, industrial automation components, and power distribution equipment. The Siemens 3NP1143-1DA10 SENTRON Fuse Switch Disconnector delivers reliable switching performance, safe isolation capabilities, and long-term operational reliability for critical low-voltage applications.
Whether you are designing a new electrical panel, upgrading power distribution infrastructure, or replacing an existing fuse switch disconnector, the 3NP1143-1DA10 provides the safety, performance, and durability expected from Siemens SENTRON products.
| Specification | Details |
|---|---|
| Product Name | Fuse Switch Disconnector |
| Manufacturer | Siemens |
| Product Series | SENTRON 3NP1 |
| Model Number | 3NP1143-1DA10 |
| Number of Poles | 3 Pole |
| Rated Current | 250A |
| Fuse Compatibility | NH0 / NH1 |
| Rated Operating Voltage | 690V AC |
| Terminal Type | Flat Terminal |
| Installation Type | Mounting Plate |
| Fuse Monitoring | No |
| Conditional Short-Circuit Current | 80kA |
| Degree of Protection | Up to IP40 |
| Application | Switching, Isolation & Protection |
| Brand | Siemens |
| Condition | New & Genuine Product |
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