Overview

The NT-50 Series 5A-32A/2P Miniature Circuit Breaker serves as a highly dependable safeguard for modern electrical networks, meticulously engineered to defend circuitry against unexpected overloads and damaging short circuits. Encased in a premium V-0 grade flame-retardant polymer, the exterior presents a smooth, industrial-grade matte finish that feels exceptionally solid to the touch while actively preventing fire propagation. Designed to endure extreme operational environments, this breaker maintains absolute stability across a rigorous temperature range of -35°C to +70°C, ensuring reliable performance in both freezing warehouses and sweltering utility rooms. Its internal mechanisms are built for exceptional longevity, delivering an impressive mechanical life of up to 10,000 cycles. Whether integrated into a compact residential distribution box or a complex industrial control panel, its space-saving architecture ensures maximum protection without compromising valuable enclosure space.

Features

Advanced Tripping Mechanism & Multi-Protection Options

At the core of the NT-50 Series lies a highly responsive tripping mechanism tuned to instantly detect both sudden short-circuit spikes and gradual overload currents. To accommodate diverse regional wiring regulations, this series offers flexible configuration options, including standard overcurrent protection (2P1E) and integrated 30mA residual current protection (2P2E). This dual-layered defense ensures comprehensive safety for sensitive networks, protecting both personnel and expensive hardware.

Streamlined Installation & Wiring Standards

Engineered for efficiency on the job site, the breaker effortlessly snaps onto standard TH35-7.5 DIN rails with a reassuring, crisp audible click. The heavy-duty terminal blocks support a maximum wiring capacity of 10mm², accompanied by clear fastening torque guidelines printed directly on the casing. This meticulous design drastically reduces installation time and minimizes the risk of loose connections during intense mechanical vibrations.

Visual Maintenance & Fault Indication

To significantly lower post-installation maintenance costs, the unit can be equipped with an optional LED status indicator. This brilliant visual cue allows facility managers and technicians to instantly identify overload or leakage trips from a distance, completely eliminating the need to physically interact with the live panel to diagnose the fault location.

OEM/ODM Customization Capabilities

Understanding the unique demands of large-scale procurement and brand differentiation, we provide comprehensive OEM and ODM services. From direct-source pricing advantages to customized packaging and bespoke labeling, we empower bulk purchasers to perfectly align the product with their proprietary brand identity, maximizing market competitiveness and streamlining supply chain operations.

Uncompromised Safety & Compliance

Manufactured to align with stringent international benchmarks such as IEC 60898-1, the NT-50 Series guarantees consistent, dependable operation over the long haul. Its heavy-duty internal contacts are designed to safely interrupt severe fault currents, protecting both the downstream electrical assets and the structural integrity of the breaker itself.

Applications

The NT-50 Series Miniature Circuit Breaker is an adaptable power management solution engineered to excel across a diverse spectrum of environments. By providing a detailed selection reference ranging from 6A up to 40A (depending on extended configurations), it minimizes procurement guesswork and ensures precise matching for specific loads.

• Residential Infrastructure: Acts as the primary defense line for home lighting circuits and socket outlets, providing occupants with uninterrupted safety and peace of mind against electrical fires.

• Commercial Facilities: Protects critical office equipment, HVAC systems, and high-draw appliances from unexpected surges, ensuring smooth daily operations without disruptive downtime.

• Industrial Machinery: Serves as a resilient barrier against destructive overcurrents in factory settings, safeguarding heavy-duty motors and automated control panels from thermal damage.

• Data Centers & Server Rooms: Delivers precise current management for highly sensitive electronic arrays, where even minor electrical fluctuations can lead to catastrophic data loss.

• Renewable Energy Installations: Effectively manages the irregular power flows typical of solar and wind generation systems, preserving the longevity and efficiency of expensive inverters and battery banks.

Technical Description & Specifications

DESCRIPTION:
The NT-50 series circuit breaker is meticulously designed as a primary protection switch for power supplying a circuit with AC 50Hz or 60Hz, voltage 220V, current up to 32A. It possesses a highly reliable inherent overload protection function that actively monitors thermal increases. When combined with a compatible fuse, it can also provide secure short circuit protection for a circuit, drastically reducing the risk of thermal damage to wiring infrastructure. Besides its protective capabilities, it can unfrequently make and break a loaded circuit, acting as a manual isolation switch during routine maintenance. It is especially suitable for lighting devices in houses and public places, or a single electric appliance such as refrigerator etc., ensuring that localized faults do not compromise the entire electrical network.