The SPD is mainly used for lightning or other transient overvoltage surge protection oflow-voltage power supply and distribution system and electrical equipment. The product is mainly used for the fir
The SPD is mainly used for lightning or other transient overvoltage surge protection of
low-voltage power supply and distribution system and electrical equipment.
The product is mainly used for the first level lightning protection of a three-phase AC power supply
system, and the multilayer graphite gap of trigger circuit is used internal.
| Item | Specification |
| Product model | HM385-25T1(3P+N) |
| SPD type | Class I |
| Nominal operating voltage-Un | 230~400VAC |
| Max. continuous operating voltage-Uc | 385VAC |
| Response time-ta | 100ns |
| Nominal discharge current-In(8/20μs) | 25kA(L-N);60kA(N-PE) |
| Impulse current-Iimp(10/350μs) | 25kA(L-N);60kA(N-PE) |
| Voltage protection level-Up | 2.5kV(L-N);1.5kV(N-PE) |
| Short-circuit current withstand | 10kArms |
| Rated disconnected continuous current value-Ifi | 1.5kArms(385VAC)/6kArms(275VAC)(L-N) |
| Rated disconnected continuous current value-Ifi | 100kArms(255VAC)(N-PE) |
| Transient short time overshortage characteristics-UTOV | 442V/5sec(L-N)；1200V/200ms(N-PE) |
| Max backup fuse | 315A gL/gG |
| Size for terminal connection | 6m㎡~25m㎡ (flexiblility)/35m㎡ (inflexibility) |
| Shell fire retardant grade | UL94 V-0 |
| IP grade | IP20 |
| SPD enclosure material | PA 66+30% Glass fiber, PANTONE 426C |
| Working Temperature | -40℃~+85℃ |
| Store Temperature | -40℃~+85℃ |
| Relative Humidity | 5%~95%(25℃) |
| Height above sea level | ≤4000m |
