Chint Circuit Breaker NXB-63S 4P 16A 4.5kA C 4M 296905
CHT 296905
6941716449063
Chint NXB-63S Circuit Breaker, full protection for three-phase lines with neutral, with the following characteristics:
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Number of Poles: 4P
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Rated current: 16 A
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Tripping curve: C
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Rated voltage: 400 Vac
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Interrupting capacity: 4.5 kA
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Number of Modules: 4
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Degree of protection: IP20
€17.25
Items Available: 3
: 2
Chint circuit breaker safety and thermal-magnetic reliability
Provides combined safety: thermal protection against overloads and rapid magnetic protection for short circuits (5÷10× In). Curve C makes it versatile for domestic and light industrial users, such as pumps, motors or electrical instruments.
Curve C can tolerate short-time overcurrents up to five to ten times the rated current and is widely used in domestic systems.
Designed for three-phase systems
4-pole configuration makes it perfect for lines with phase and neutral. Three-phase 400 Vac rated voltage and 16 A current make it suitable for a wide range of civil applications or secondary installations in industrial settings.
Interrupting power up to 4.5 kA and 4 kV impulse voltage, in limitation class 3, effectively and quickly protect switchgear and equipment from the risk of major faults.
Compact design and simple installation
With small size and 35mm DIN rail mounting, it occupies only 4 modules, ideal for switchboards with limited space while maintaining ease of wiring.
Power dissipation of only 3.5 W, reduces heat loss and consumption, improving the overall performance of the switchboard, especially in domestic or commercial environments.
Compatible Accessories
Auxiliary contact (AX-X1), alarm contact (AL-X1), trip coils (SHT-X1) or minimum voltage coils (UVT-X1) can be added for advanced integrations. Not compatible with differential modules.
Technical Specifications Circuit Breaker Chint
| Pole / Neutral | 4P (3F + N) |
|---|---|
| Rated current In | 16 A |
| Tripping curve | C |
| Rated voltage Vn | 400 Vac |
| Frequency | 50/60 Hz |
| Uimp | 4 kV |
| Interrupting capacity Icn | 4.5 kA |
| Limitation class | 3 |
| Power dissipation | 3,5 W |
| DIN modules | 4 modules |
| Degree of protection | IP20 |
| Dimensions (H×W×D) | 81 × 72 × 78 mm |
| Compatible accessories | AX-X1, AL-X1, SHT-X1, UVT-X1 |
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Data sheet
- Voltage: 400VAC
- Modules: 4
- Poles: 4P
- Curve: C
- Breaking capacity: 4.5KA
- Degree of protection: IP20
- Amps: 16A
- Circuit Protections: Circuit breakers