In the intricate realm of electrical systems, safety isn’t just an option—it’s the number one priority. You might already know about basic circuit breakers, but let me introduce you to the NL1-63 4P 30mA/300mA, a true game-changer. This isn’t just another safety gadget; it’s a multifunctional, all-in-one solution crafted for professional use in tough environments. What sets this residual current circuit breaker apart is its dual-sensitivity protection, which lets you toggle between 30mA for personal safety and 300mA for serious fire prevention.

So, what does this mean for your electrical project? It translates to unmatched flexibility and control. Whether you’re protecting a commercial building, an industrial workshop, or a complex three-phase system, this single device delivers the right level of protection for any scenario. In this detailed guide, we’ll dive into the technology behind the NL1-63 4P 30mA/300mA, highlight its key features, and show you how to harness its capabilities for maximum security.

What is NL1-63 4P RCCB?

The NL1-63 is a four-pole Residual Current Circuit Breaker (RCCB) that’s specifically designed for low-voltage electrical distribution. Its job is straightforward yet crucial: it helps prevent electric shocks and fire hazards that can occur due to current leakage.

• 4P (Four Pole): Perfect for three-phase systems that include a neutral line.
• 30mA sensitivity: Protects people from dangerous electric shocks.
• 300mA sensitivity: Prevents fire risks caused by higher leakage currents.
• 63A rated current: Handles higher loads without compromise.

Key Features

• High sensitivity protection against electric shocks.
• Fire safety compliance with 300mA leakage detection.
• Wide application in homes, offices, factories, and commercial sites.
• Quick disconnection within milliseconds to ensure safety.
• Durable build with long service life.
• Compact design for easy installation in distribution boards.

Applications of NL1-63 4P RCCB

This RCCB is suitable for a wide range of environments:

Residential Buildings

• Provides life-saving protection against electric shocks.
• Ensures safe usage of household appliances.

Commercial Spaces

• Ideal for shops, malls, and offices with multiple loads.
• Protects sensitive electronics and employees.

Industrial Sites

• Prevents fire risks in heavy load environments.
• Suitable for machinery and three-phase equipment.

Why Choose NL1-63 4P, 30mA/300mA?

• Dual sensitivity offers flexible usage in both residential and industrial setups.
• Four-pole design makes it compatible with three-phase systems.
• Enhanced safety ensures compliance with international standards.
• Trusted performance reduces downtime and risk of electrical hazards.

Benefits at a Glance

• Protects human life from electric shocks.
• Prevents electrical fires caused by leakage currents.
• Supports energy efficiency by preventing wastage.
• Easy to install in standard distribution boards.
• Environment-friendly with reduced risk of accidents.

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NL1-63 2 Pole RCCB (30 mA & 300 mA) – Ultimate Safety Choice