The surge protector is mainly used in surge protection for lightning or other transient over-voltage from low voltage power distribution
system and electrical equipment.
Product is built-in overheating and over-current protection function, which can provide low voltage power distribution system and electric
equipment with class C (Ⅱ level classification test) lightning protection. This type adopts to 35 mm DIN TTW Guide installation.The
surge protection module can be changed independently, which possesses ease of installation and maintenance.With a remote
communication alarm interface (dry contact), it is convenient to monitor the status of the SPD.
| Item | Specification |
| Product model | M1L320-40II(3P+N) |
| Rated working voltage-Un | 230V/400VAC |
Max. continuous operating voltage-Uc | 320VAC(L-N)/255VAC(N-PE) |
| Nominal discharge current-In(8/20μs) | 20kA |
| Maximum discharge current-Imax(8/20μs) | 40kA |
Voltage protection level-Up | 20kA 8/20μs | ≤1.5kV(L-N)/≤1.0kV(N-PE) |
| 5kA 8/20μs | ≤1.0kV(L-N)/≤1.0kV(N-PE) |
Temporary over-voltage characteristics (TOV) | 400V/5sec |
| Front Fuse | 125AgL |
| Short-circuit current withstand | 25kArms |
| Size for terminal connection | 1.5 m㎡~25m㎡ (flexiblility)/35m㎡ (inflexibility) |
| Max. current for alarm port | 250V/0.5A(AC)0.1A(DC); 125V/1A(AC)0.5(DC) |
| Shell fire retardant grade | UL94 V-0 |
| IP grade | IP20 |
| Plug in module shell Material | PA 66+30% Glass fiber, cool grey2C |
| Base shell material | PBT+30% Glass fiber, cool grey2C |
| Working Temperature | -40℃~+85℃ |
| Store Temperature | -40℃~+85℃ |
| Relative Humidity | 5%~95%(25℃) |
| Height above sea level | ≤4000m |
| Storage expiry | 2 years per inspection |
| Moisture sensitive level | Class 1(≤30℃/85%RH) |