YCS7N series Surge Protection Device is suitable for TT, IT, TN-S, TN-C and TN-C-S, the power supply system with the rated voltage up to 230/400V and AC 50/60Hz. Its design corresponds to IEC61643-1. The product is usually installed in the incoming line low voltage distribution box of the building, and it can release 80kA lightning stroke current.
1. Installation
• The surge protector’s housing size meets the space saving18mm width modulus requirement,so the device is easy to install.The lightning arrester can be easily installed by attaching it to the 35mm guide rail.
2. Characteristics
• Seal structure design, no arc leakage during operation;
• Modular design, integrated design, more beautiful appearance;
• Limp12.5kA,15kA, fast response time;
• Imported high energy graphite, stable performance, safe use;
• 35mm standard rail installation.
3. the use of advantages
• Switch type modular surge protector, with high lightning current discharge capacity;
• The unique use of sealed design structure, even in the operation, there will be no leakage arc;
• The use of high safety, no continuous flow;
• No grounding jumper,more convenient installation, more safe;
• When used with the post-stage voltage limiting typesurge arrester, the two-stage surge arrester can be installedtogether.
| Company code | Design code | Level | Current |
| YC | S7N | □□□ | □□□ |
| CNC | S7N | I+II: T1(10/350μs)+ T2(8/20μs) T2 |
1:Non communication R:Remote communication |
1. It is needless to adjust the protection device after it has been mounted.
2. Only the protection device is installed appropriately, it can protect the poer grid automatically at once;
3. When the protection device is operating,the tablet ot module shall be examined regularly,to check if it glows,meanwhile,observe if the red indicator lamp of fuse brightens. Please change the fault element in time.
| Moedl &spec |
Rated operating voltage (Un) |
Max continuous operating voltage Uc(V) |
Protection level UP(KV) |
Nominal operating currentln 8/20us (kA) |
Max effective current 8/20us(kA) |
Lightning impulse current 10/350us(kA) |
Response time ns |
Operating temperature |
| YCS7N | 110V/220V | 275 | 0.7 | 5 | 10 | / | <25 | -40~+80℃ |
| 440 | 1.0 | / | ||||||
| 275 | 1.2 | 10 | 20 | / | ||||
| 440 | 1.5 | / | ||||||
| 275 | 1.5 | 20 | 40 | / | ||||
| 440 | 2.2 | / | ||||||
| 275 | 1.8 | 30 | 60 | / | ||||
| 440 | 2.4 | / | ||||||
| 275 | 2.0 | 40 | 80 | 1 | ||||
| 440 | 2.5 | / | ||||||
| 275 | 1.5 | / | / | 12.5 | <100 | |||
| 385 | 2.5 | / | / | |||||
| 275 | 2.0 | / | / | 15 | ||||
| 385 | 2.5 | / | / |
| Index Code | N-PE/12.5 | N-PE/15 |
| continuous ooperating voltage Uc(V) | 255V/280V/385V | |
| protection level UP(KV) | ≤1.5KV≤2.0KV≤2.5 | |
| Nominal operating currentin 8/20us (KA) | / | 1 |
| Lightning impulse current 10/350us(KA) | 12.5 | 15 |
| Response Time ns | <100ns | |
| Color | Blue/Wie | |
The YCS7N Surge Protection Device is used to protect low-voltage electrical systems from transient overvoltage caused by lightning strikes or switching surges. It is usually installed in the incoming line low-voltage distribution box of a building to help protect downstream electrical equipment.
YCS7N is suitable for TT, IT, TN-S, TN-C, and TN-C-S power supply systems with rated voltage up to 110/230V and AC 50/60Hz. It can be used in different low-voltage distribution systems according to the required wiring method.
YCS7N Surge Protection Device complies with IEC 61643-11, the standard for low-voltage surge protective devices. This makes it suitable for surge protection applications in building power distribution systems.
YCS7N can release up to 80kA lightning stroke current. The series includes multiple current options to meet different surge protection requirements in low-voltage distribution systems.
YCS7N includes both T1+T2 and T2 options. The T1+T2 type is designed for combined lightning current and surge protection, while the T2 type is mainly used for protection against induced surge overvoltage in low-voltage power systems.
YCS7N features a sealed structure design, modular appearance, high lightning current discharge capacity, fast response time, high-energy graphite, and stable performance. The sealed structure helps prevent arc leakage during operation, improving safety in electrical distribution systems.
YCS7N adopts a modular design and can be installed on a 35mm DIN rail. Its 18mm width modular structure helps save space in distribution boxes and makes installation more convenient.
Yes. YCS7N is available with remote signalling function. In the model designation, “R” indicates the remote communication version, while “/” indicates the non-communication version. The remote signalling function can help monitor fault status in distribution systems.
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