3NP1143-1DA21

Product ID:170715
Updated: 2026/7/3
Siemens 3NP1143-1DA21

Key Features

  • 1Protect personnel with permanent on/off load switching for enhanced safety.
  • 2Optimize low-voltage power distribution with a comprehensive, efficient portfolio.
  • 3Install flexibly via floor, rail, or front panel door mounting.
  • 4Handle high-current applications reliably with a 250 A rating.
  • 5Ensure compliance and performance meeting IEC 60947-3 and UL standards.

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Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
DC Insulation Voltage(V)
440
AC Rated Voltage(V)
690
Insulation Voltage(V)
1000
Number of Poles
3P
Description
3NP1, Rated current 250A, Size 0/1, Surface mounting, Box terminal, 3P, Electromechanical fuse monitoring,
Fuse Monitoring
Electromechanical Fuse Monitoring
Mounting Type
Surface Mounting
Fuse Rating
Size: 0/1
Terminal Type
Box Terminal
Rated Current In(A)
250
Specifications
3NP114【250A】
Lifecycle
Delivery Release (PM300)
Country of Origin
Germany
ECCN
9N9999
AL
N
Model Number
3NP1143-1DA21

Specifications may be subject to change without notice

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