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Chint NL1-63-416/300 RCD – 4P – 16A – 300mA
Chint NL1-63-416/300 residual current device, a 16 A 300 mA 4 pole AC type RCCB for earth leakage protection in distribution boards, control panels and industrial electrical installations.
Why Choose the Chint NL1-63-416/300 Residual Current Device?
The Chint NL1-63-416/300 is a reliable residual current device (RCD) designed to provide earth leakage protection in residential, commercial and light industrial electrical installations. As part of the Chint NL1 RCCB series, it automatically disconnects the circuit when residual current faults are detected, helping protect people, equipment and property from electrical hazards.
This device is a 4 pole, AC type RCD suitable for detecting sinusoidal alternating residual currents. It is commonly installed in distribution boards, consumer units and electrical control panels where dependable residual current protection is required without integrated over-current protection.
With a rated current of 16 A and a residual operating current of 300 mA, the NL1-63-416/300 is well suited to three-phase circuits requiring earth leakage protection for fire-risk reduction and installation safety. Its DIN rail mounting format enables quick, neat and secure installation in modern electrical enclosures.
Key Advantages
- Reliable 4 pole residual current device for earth leakage protection.
- 16 A rated current for low voltage electrical circuits.
- 300 mA residual operating current for leakage fault detection.
- AC type RCD for sinusoidal alternating residual current protection.
- DIN rail mounting for fast installation in distribution boards and control panels.
- Helps reduce fire risks caused by insulation faults and earth leakage currents.
Key Features
- Chint NL1 series residual current circuit breaker.
- 16 A rated current.
- 300 mA residual operating current.
- 4 pole configuration.
- AC type tripping characteristic.
- Residual current protection without over-current protection.
- DIN rail mounting for modular electrical assemblies.
- Compliant with IEC / EN 61008-1.
Reliable Earth Leakage Protection for Electrical Installations
Residual current devices such as the Chint NL1-63-416/300 continuously monitor current balance across the protected conductors. When an earth leakage fault occurs, the device disconnects the circuit rapidly to help reduce the risk of electric shock and electrical fires caused by insulation faults.
The NL1 series is designed to provide residual current protection only and should be installed alongside suitable over-current protection, such as an MCB or fuse. Its compact DIN rail format makes it suitable for residential, commercial and industrial electrical installations.
Typical Applications
- Three-phase distribution boards.
- Commercial building circuits.
- Light industrial power distribution.
- Control panels and electrical enclosures.
- Earth leakage protection for three-phase circuits.
- Electrical panels requiring dedicated residual current protection.
Technical Specifications
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| Current | 16 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | RCD | |
| Residual Current | 300 mA | |
| Manufacturer | Chint | |
| Series | NL1-63 | |
| Model | NL1-63-416/300 | |
| Product type | Residual current device / RCCB | |
| Number of poles | 4 pole | |
| Rated current | 16 A | |
| Residual operating current | 300 mA | |
| Tripping type | AC type | |
| Rated voltage | 400 / 415 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated conditional short-circuit current | 6 kA | |
| Rated conditional residual short-circuit current | 6 kA | |
| Rated insulation voltage | 500 V | |
| Rated impulse withstand voltage | 4 kV | |
| Mounting type | 35 mm DIN rail | |
| Connection type | Cable or busbar connection | |
| Protection rating | IP20 | |
| Operating temperature | approx. -25 to +70°C | |
| Standards | IEC / EN 61008-1 |
Frequently Asked Questions
What is the Chint NL1-63-416/300 used for?
The Chint NL1-63-416/300 provides residual current protection by disconnecting the circuit when earth leakage faults are detected.
What current rating does this RCD have?
The Chint NL1-63-416/300 has a rated current of 16 A.
What residual current sensitivity does it provide?
This RCD has a residual operating current of 300 mA.
How many poles does the NL1-63-416/300 have?
The device features a 4 pole configuration, making it suitable for three-phase electrical systems requiring neutral disconnection.
Does this RCD provide over-current protection?
No. The NL1-63-416/300 provides residual current protection only and should be installed with suitable over-current protection.
Trusted by Electrical Installers Worldwide
Chint residual current devices are widely used by electrical contractors, panel builders and maintenance engineers to deliver dependable earth leakage protection across residential, commercial and industrial electrical installations.
