ComPacT NSX250F 4P3R automatic switch with 36 kA cutting capacity at 380-415 V AC, designed for industrial applications with current exceeding 0.1 A. It offers protection against overloads and short circuits in three-phase neutral systems, with 3 protected poles (3R) and neutral on the left. It is suitable for nominal operating voltages up to 690 V AC at 50/60 Hz, with thermal-magnetic technology and adjustable overload adjustment (0.7–1 × In).
Technical characteristics
- Number of poles: 4P
- Description of protected poles: 3R
- Neutral position: Left
- Nominal current [In]: 250 A at 40 °C
- Nominal employment voltage [Ue]: 690 V AC 50/60 Hz
- Network type: AC
- Network frequency: 50/60 Hz
- Cutting capacity [Icu]: 36 kA at 380/415 V AC 50/60 Hz
- In-service cutting power [Ics]: 36 kA at 380/415 V AC 50/60 Hz
- Control unit: TM-D
- Fire unit technology: Thermal-magnetic
- Protection functions: LIG
- Type of control: Handle
- Type of assembly: Fixed
- Nominal insulation voltage [Ui]: 800 V AC 50/60 Hz
- Voltage peak resistance [Uimp]: 8 kV
- Mechanical durability: 20000 cycles
- Electrical durability: 20000 cycles in 440 V In/2
- Dissipated power per pole: 18,75 W
- Mounting bracket: Rear plate
- Mounting position: Horizontal and vertical (plano por la parte posterior)
- Top connection: Front
- Connection down: Front
- Connection step: 35 mm
- Calibre of the firing unit: 250 A at 40 °C
- Long-term detection adjustment Go: Adjustable (0.7...1 x In)
- Long-term delay adjustment: Fixed (120...400 s at 1.5 x In, 15 s at 6 x Ir)
- Instant detection setting Ii: Adjustable (5...10 x pol)
- Protection against ground leaks: Without
- Number of slots: 5
- Dimensions: 140 mm (width) x 161 mm (height) x 86 mm (depth)
- Weight: 2.8 kg
- Degree of IP protection: IP40
- Level of protection IK: IK07
- Operating ambient temperature: -25...70 °C
- Storage ambient temperature: -50...85 °C
- Relative humidity: 0...95 %
- Maximum operating altitude: 0...2000 m without decrease, 2000 m ... 5000 m with restrictions
- Standards: HB2
- Certifications: CCC Marine Generator
- Overvoltage category: Class II
- Electrical shock protection class: Class II
- Degree of contamination: 3
- Sustainable supply status: Product Green Premium
- EU RoHS Directive: As per
- No mercury: Yes
- No PVC: Yes
The modular design and high cutting capacity allow its use in processing centers, heavy machinery installations and industrial electrical distribution systems, ensuring reliability under extreme conditions of temperature and humidity.
