Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Chint NL1-100-280/100-S RCD – 2P – 80A – 100mA
Chint NL1-100-280/100-S time delayed residual current device, an 80 A 100 mA 2 pole S type RCCB for selective earth leakage protection in consumer units, distribution boards and industrial electrical installations.
£36.14
Why Choose the Chint NL1-100-280/100-S Time Delayed Residual Current Device?
The Chint NL1-100-280/100-S is a reliable time delayed 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 2 pole, S type time delayed RCD designed to provide discrimination with downstream residual current devices. The time delayed operation helps reduce unwanted tripping in coordinated protection systems, making it suitable for distribution boards, sub-main circuits and installations where selective residual current protection is required.
With a rated current of 80 A and a residual operating current of 100 mA, the NL1-100-280/100-S provides dependable earth leakage protection for higher capacity single-phase circuits. Its DIN rail mounting format enables quick, neat and secure installation in modern electrical enclosures.
Key Advantages
- Reliable 2 pole time delayed residual current device for earth leakage protection.
- 80 A rated current for higher capacity low voltage circuits.
- 100 mA residual operating current for leakage fault detection.
- S type time delayed operation supports selectivity with downstream RCDs.
- DIN rail mounting for fast installation in consumer units and distribution boards.
- Helps reduce nuisance tripping in coordinated electrical protection systems.
Key Features
- Chint NL1 series residual current circuit breaker.
- 80 A rated current.
- 100 mA residual operating current.
- 2 pole configuration.
- S type time delayed tripping characteristic.
- Residual current protection without over-current protection.
- DIN rail mounting for modular electrical assemblies.
- Compliant with IEC / EN 61008-1.
Selective Earth Leakage Protection for Electrical Installations
Time delayed residual current devices such as the Chint NL1-100-280/100-S continuously monitor the difference between live and neutral current. When an earth leakage fault occurs, the device disconnects the circuit after a controlled delay, helping provide selectivity with downstream RCDs.
The NL1 series provides residual current protection only and should be installed alongside suitable over-current protection, such as an MCB or fuse. Its S type characteristic makes it particularly useful for upstream protection where discrimination and reduced nuisance tripping are important.
Typical Applications
- Consumer units and distribution boards.
- Commercial building circuits.
- Light industrial power distribution.
- Sub-main electrical circuits.
- Upstream RCD protection requiring selectivity.
- Electrical panels requiring dedicated residual current protection.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 80 A | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | RCD | |
| Residual Current | 100 mA | |
| Manufacturer | Chint | |
| Series | NL1-100 | |
| Model | NL1-100-280/100-S | |
| Product type | Time delayed residual current device / RCCB | |
| Number of poles | 2 pole | |
| Rated current | 80 A | |
| Residual operating current | 100 mA | |
| Tripping type | S type time delayed | |
| Rated voltage | 230 / 240 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 NL1-100-280/100-S used for?
The Chint NL1-100-280/100-S provides time delayed residual current protection by disconnecting the circuit when earth leakage faults are detected.
What current rating does this RCD have?
The Chint NL1-100-280/100-S has a rated current of 80 A.
What residual current sensitivity does it provide?
This RCD has a residual operating current of 100 mA.
What does S type time delayed mean?
S type time delayed operation provides a controlled delay before tripping, helping achieve discrimination with downstream RCDs and reducing unwanted nuisance tripping.
Does this RCD provide over-current protection?
No. The NL1-100-280/100-S provides residual current protection only and should be installed with suitable over-current protection.
Trusted by Electrical Installers Worldwide
Chint time delayed residual current devices are widely used by electrical contractors, panel builders and maintenance engineers to deliver dependable selective earth leakage protection across residential, commercial and industrial electrical installations.
