This surge protector is mainly used for lightning protection of low voltage power supply and distribution systems
and electrical equipment or other transient overvoltage surge protection. 
The product has built-in over-temperature and over-current protection to provide last-level surge
protection for DC power distribution systems. The product adopts 35mm DIN rail mounting method. The
module can be replaced independently for easy installation and maintenance. It has a remote signaling
interface (dry contact) for remote monitoring of the surge protector status 
                                    
                                                                        
                                        
| Item | Technical Parameter | 
| Model No. | M1L085-40II | 
| Rated voltage-Un | -48V | 
| Max. continusous operating Voltage-Uc
 | -85VDC | 
| Nominal discharge current-In(8/20μs) | 20kA | 
| Maximum discharge current-Imax(8/20μs) | 40kA | 
| Voltage protection level-Up(In) 
 | ≤600V | 
| Limiting voltage | ≤300V (5KA,8/20μs) | 
| Response time-Ta | ≤25ns | 
| Terminal wiring range | 1.5 m㎡~25m㎡ (flexible)/35m㎡ (rigid) | 
| Alarm port rated operating current | 250V/0.5A(AC)0.1A(DC); 125V/1A(AC)0.5(DC)
 | 
| Shell flame rating | UL94 V-0 | 
| Shell protection rating | IP20 | 
| Product certification | TUV | 
| Shell Material | PA66+30%glassfiber PANTONE426C(Huawei black) | 
| Working Temperature | -40℃~+75℃ | 
| Storage Temperature | -40℃~+85℃ | 
| Relative Humidity | 5%~95%(25℃) | 
| Atmospheric Pressure | 60~106 kPa | 
| Altitude | ≤4000m |