NBH8LE Residual Current Operated Circuit Breaker with over-current protection (Electronic) Datasheet & Manual

NBH8LE Residual Current Operated Circuit Breaker with over-current protection (Electronic)

The NBH8LE Residual Current Operated Circuit Breaker with Over-current Protection (Electronic) ensures comprehensive personnel and fire protection by detecting leakage, overload, and short-circuit faults in electrical systems. Designed for residential, commercial, and industrial environments, it combines earth-leakage protection with C-curve thermal-magnetic over-current protection. Compact and reliable, it meets IEC/EN 61009-1 standards and delivers up to 20,000 mechanical operations, making it ideal for safe and efficient low-voltage distribution.

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FAQs

What is the primary purpose of the NBH8LE RCBO?

It provides dual protection—against earth leakage and over-current faults—making it suitable for both personal safety and equipment protection in low-voltage circuits.

In what applications can it be used?

The NBH8LE is ideal for residential distribution boards, small commercial systems, and industrial control circuits requiring high sensitivity and reliability.

What are the available rated currents and sensitivities?

It comes in 1–40 A rated currents with 10 mA or 30 mA residual-current sensitivities for different protection levels.

How does temperature affect performance?

At ambient temperatures above 30 °C, the permissible current decreases gradually—by about 5–15 % at 40–60 °C.

Is it easy to install?

Yes — the NBH8LE mounts on a 35 mm DIN rail using a quick-clip mechanism and supports top-side wiring for faster and safer installation.

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NBH8LE Residual Current Operated Circuit Breaker with over-current protection (Electronic)

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NBH8LE Residual Current Operated Circuit Breaker with over-current protection (Electronic)

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