Surge Protection Device NL1-C40 3P for industrial and commercial
The NL1-C40 3P SPD is a Type 2/Class II surge protector designed to safeguard electrical systems against transient overvoltages, combining modular design with advanced safety features. Engineered for industrial and commercial applications, it integrates independent high-sensitivity resistance plates and intelligent thermal tripping technology to deliver rapid response times (<25ns) and ultra-low residual voltage, minimizing equipment damage.
Product Introduction
Its built-in over-current/overheat protection and temperature-controlled disconnection ensure automatic cut-off during overloads, while dual-color indicators (green=normal, red=fault) provide real-time status monitoring.
Compliant with EN 61643-11, IEC 61643-1, and E DIN VDE 0675-6 standards, this DIN rail-mounted SPD offers easy installation, low leakage current, and robust durability, making it ideal for protecting power distribution panels, machinery, and critical infrastructure from lightning strikes and voltage surges.
Technical Data
| NL1-C40 | ||||||
| SPD to EN 61643-II | Type 2 | Operating temperature range TU | -40℃…+80℃ | |||
| SPD to IEC 61643-I | Class II | Cross-sectional area (min.) | 1.5 mm2 solid / flexible | |||
| SPD to VDE 0675-6 | Class C | Cross-sectional area (max.) | 35 mm2 stranded / 25 mm2 flexible | |||
| Max. continuous voltage Uc | 275 V | 320 V | 385 V | 440 V | Mounting on | 35 mm DIN rail acc. To EN 60715 |
| Nominal discharge current (8/20μs) In | 20 kA | Degree of protection | IP 20 | |||
| Max. discharge current (8/20μs) Imax | 40 kA | Housing material | Thermoplastic; extinguishing degree UL 94 V-0 | |||
| Voltage protection level Up | ≤ 1.3kV | ≤ 1.5kV | ≤ 1.8kV | ≤ 2.0kV | Remote signaling contact (floating switch) | Yes (optional accessory) |
| Response time tA | ≤ 25 ns | Switch capacity | AC: 250V/0.5A; 125V/3 A | |||
| Max. back-up fuse | 125 A gl/gG | Cross-sectional area for remote signaling terminals | Max. 1.5 mm2 solid / flexible | |||
| Short-circuit withstand current | 25kA/50Hz | |||||
Dimensions