SCHNEIDER ATV71HD90N4 Molded Case Circuit Breakers

Description

SCHNEIDER ATV71HD90N4 Molded Case Circuit Breakers

Schneider Electric is a global leader in Molded Case Circuit Breaker (MCCB) technology, primarily represented by the ComPact range (NSX, NSXm, and NS series). These devices are designed to protect electrical systems from damage caused by overloads, short circuits, and earth-fash faults for higher currents than standard MCBs.

Product Detailed Description

Schneider MCCBs are heavy-duty circuit breakers used for protecting circuits ranging from 16A to 3200A. They feature a modular design, allowing for the easy integration of accessories like motor mechanisms, auxiliary switches, and various trip units (thermal-magnetic or electronic “Micrologic” units).

The flagship ComPact NSX series is famous for its “Roto-active” breaking technology, which reduces the effects of short circuits, thereby increasing the lifespan of the electrical installation.

General Product Parameters

Note: Parameters vary by frame size (e.g., NSX100, NSX250, NSX630).

Product Advantages

• MicroLogic Intelligence: Higher-end models provide integrated power and energy metering, allowing users to monitor energy consumption and “health” status without extra external meters.

• Selectivity & Coordination: Schneider MCCBs are engineered to work perfectly with downstream MCBs, ensuring only the breaker closest to the fault trips (preventing total blackouts).

• Compact Footprint: High breaking capacities are packed into small frame sizes, saving significant space in electrical switchboards.

• EverLink Terminals: A patented power connection technology that ensures a permanent pressure on the cables, preventing loose connections due to heat cycling or vibration.

Important Considerations & Maintenance

• Trip Unit Selection: Choosing between Thermal-Magnetic (best for standard cables/distribution) and Electronic (best for fine-tuning protection and motor loads) is crucial for system safety.

• Environmental Derating: If installed in high-temperature environments (above 40°C), the rated current may need to be “derated” to prevent nuisance tripping.

• Terminal Torque: MCCBs handle high currents; failing to tighten lugs to the specific Newton-meter (Nm) rating can lead to fire hazards.

• Testing: It is recommended to perform a “Push-to-Trip” test annually to ensure the mechanical linkage is functional.

Product Applications

Schneider MCCBs are the backbone of power distribution in:

• Industrial Plants: Protecting heavy machinery, motor control centers (MCCs), and large transformers.

• Data Centers: Providing high-reliability power distribution with integrated monitoring to prevent downtime.

• Commercial Buildings: Main incoming protection for hospitals, shopping malls, and office towers.

• Renewable Energy: Specialized DC versions are used in Solar PV inverters and battery storage systems.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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