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Siemens SENTRON 3NP1143-1DA10

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3NP1143-1DA10

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The Siemens 3NP1143-1DA10 is a 3-pole fuse switch disconnector, designed to efficiently manage electrical circuits. This unit is rated for a continuous current capacity of up to 250 A at 35°C and supports operating voltages of up to 690 V AC and up to 440 V DC.

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Technical specifications for 3NP1143-1DA10

ManufacturerSiemens
Product LineSENTRON
Part Number3NP1143-1DA10
UPC040892577402
Weight6.00 lbs (2.72 kg)
ProductFuse Switch Disconnector
Number of Poles3
Continuous Current at 35°C250 A
Operating Voltage (AC)Up to 690 VAC
Operating Voltage (DC)Up to 440 VDC
Fuse SystemLV HRC fuse
Protection Class with Cover or Cable Lug CoverIP40
EnvironmentNo corrosive gases
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The 3NP1143-1DA10, offered by Siemens, is a robust fuse switch disconnector characterized by its three-pole design, catering to various electrical needs. This device is capable of handling a continuous current of 250 A at a temperature of 35°C. It is rated for AC voltages of up to 690 VAC, making it suitable for a broad range of applications, while also accommodating DC voltages of up to 440 VDC.

Integrating an LV HRC fuse system enhances circuit protection. Its construction allows it to maintain a protection class of IP40 when used with either a cover or a cable lug cover. This ensures that it is adequately shielded from dust and solid objects, contributing to the reliability of electrical circuits in which it is implemented.

The physical dimensions of the 3NP1143-1DA10 measure 200 mm in width, 355 mm in height, and 140 mm in depth, converting to approximately 7.87 inches x 13.98 inches x 5.51 inches. With a net weight of 2.76 kg (6.09 lbs.), it remains manageable for installation in various setups. This model operates effectively in environments free from corrosive gases, maintaining its integrity and functionality under specified conditions.