NXB
Product Overview
The NXB Series Modular Circuit Breakers are engineered to deliver superior electrical protection across diverse environments, from household wiring to heavy industrial machinery. These breakers combine cutting-edge safety features with robust performance.
Key Advantages
Comprehensive Protection: Safeguards circuits against overloads, short circuits, and provides positive isolation for maintenance.
Wide Compatibility: Accommodates currents from 1A to 125A, voltages up to 415V AC or 220V DC(NXB-125), and frequencies of 50/60Hz.
Adaptive Tripping Curves: Selectable B (3–5×In),C (5–10×In),D (10–14×In), and OV (14–20×In)curves to match load types (e.g., motors, lighting, transformers).
High Breaking Capacity: Handles short-circuit currents up to 20kA (DC) or 10kA (AC), with service ratings (Ics) of7.5kA–15kA.
Extended Durability:20,000 mechanical cycles and 4,000–10,000 electrical cycles for long-term reliability.
Extreme Environment Ready: Operates flawlessly in temperatures from-35°C to +70°C, with automatic current derating for thermal stability.
Space-Saving Design: Modular widths (18mm per pole) for efficient DIN rail mounting in panels.
Certifications & Compliance
Globally certified with CE, CB, SNI, NOM, EAC, SII, and LoA marks, the NXB Series meets stringent safety and performance criteria for worldwide deployment.
Specifications
Rated Current (In)
1A–125A (varies by model)
Rated Voltage (AC)
220V~415V (1P–4P)
Rated Voltage (DC)
60V–220V (NXB-125 only)
Frequency
50/60Hz
Rated Short-Circuit (Icu/Icn)
4.5kA–20kA (depends on model/poles)
Service Short-Circuit (Ics)
4.5kA–15kA
Thermal-Magnetic Curves
B, C, D, OV (selectable)
Mechanical Life
20,000 cycles
Electrical Life
4,000–10,000 cycles (depends on current)
Operating Temperature
-35°C to +70°C
Power Consumption (per pole)
2W–14W (scales with current)
Key Features
1
Multi-Standard Compliance: Meets IEC/EN 60898-1 (household) and IEC/EN 60947-2 (industrial) standards.
2
Certified Safety: CE, CB, SNI, NOM, EAC, SII, and LoA certifications for global use.
3
Advanced Protection: Combines overload, short-circuit, and isolation functions in one device.
4
Wide Current Range: Covers 1A to 125A for residential, commercial, and industrial applications.
5
Flexible Tripping Curves: Supports B (3–5×In), C (5–10×In), D (10–14×In), and OV (14–20×In) curves for diverse load types (motors, lighting, etc.).