S-LB-3012 Signal Surge Protector (2-wire, 12V)
2-wire signal surge protector, suitable for 12V voltage signal circuits, 7mm ultra-slim integrated design, 35mm DIN rail mounting, capable of continuous operation (auto-reset).
- Original Factory Genuine, Tenfold Compensation for Counterfeits
- Full Machine Warranty, Lifetime Maintenance
- In Stock, Shipped on the Same Day
The S-LB-3012 surge protector is used for protection at the boundaries of LPZ0B to LPZ2 and subsequent zones. It can be applied to 2-wire RS-485, MODBUS and other 12V voltage signal products.
| Parameter Name | Technical Specifications |
|---|---|
| Basic Parameters | |
| Nominal voltage Un | 12V |
| Max. continuous DC operating voltage Uc | 15V |
| Nominal current (45°C) IL | 600mA |
| wire system | 2-wire system |
| Discharge parameters | |
| Total impulse discharge current D1 (10/350μs) | 2kA |
| Total impulse discharge current per line Iimp (D1, 10/350μs) | 1kA |
| Total nominal discharge current Itotal (C2, 8/20μs) | 10kA |
| Nominal discharge current per line In (C2, 8/20μs) | 5kA |
| Maximum discharge current per line Imax (C2, 8/20μs) | 10kA |
| Protection level and response | |
| Line-to-line voltage protection level Up (C2, 8/20μs) | 30V |
| Line-to-earth voltage protection level Up (C2, 8/20μs) | 600V |
| Line-to-line voltage protection level Up (C3, 1kV/μs) | 20V |
| Line-to-earth voltage protection level Up (C3, 1kV/μs) | 600V |
| Line-to-line response time tA | 1 ns |
| Line-to-earth response time tA | 100 ns |
| Other parameters | |
| Series resistance R | 1.8Ω |
| Line-to-line cut-off frequency fG | 2.8 MHz |
| Degree of protection | IP20 |
| Flammability rating (UL94) | V0 |
| Installation Method | 35 mm DIN rail mounting |
| Earthing | Terminal grounding supported (optional) |
- 2-wire, suitable for 12V voltage signal circuits
- Continuous operation (auto-reset)
- 7 mm integrated ultra-slim design, 35 mm DIN rail mounting
- Terminal grounding supported (optional)
- Line-to-line low residual voltage protection, for LPZ0B–LPZ2 boundary interfaces
Surge protection for field instrument signal circuits
Can be applied to 2-wire RS-485, MODBUS and other 12V voltage signal products
Need selection advice or bulk quotation?
Send us the working condition parameters (signal type, medium, range, pressure, temperature, connection method), and our engineers will provide a selection scheme and quotation within 1 working day.
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