1. Description:
iSPD series intelligent monitoring surge protector, is consist of new designed surge protector with temperature monitoring part inside - iSPD-20C, and intelligent monitoring module - iSPD-M, which are awarded national design patent and appearance patent.

2. Characteristics
1) New designed intelligent surge protective device (iSPD).
2) Designed for on-line monitoring of SPD degradation, circuit breaker working status, grouding conditions, SPD action times (surge counting).
3) On-line checking automatically, real-time monitoring.
4) Adopt RS485 cable communication transmission data for monitoring module, which can connect with background server, to record and check the data.
5) Din-Rail mounting, with RS485 cable communication
6) Patent technology.

3. Electrical parameter
1) MODEL NO.: iSPD20C/4-xxx S
2) CLASSIFICATION（IEC61643-1:2005): Class II
3) Earthing system: TT
4) Max. cont ac operation voltage Uc: 150Vac, 275Vac, 320Vac, 385Vac, 440Vac
5) Max. cont dc operation voltage Uc: 200Vdc, 350Vdc, 410Vdc, 505Vdc, 615Vdc
6) Max. discharge current(8/20μs) Imax: 40kA
7) Nominal discharge current(8/20μs) In: 20kA
8) Response time tA: ≤25ns
9) Recommended back-up fuse: 125A
10) I/O Connections: Multi core wire:4～25mm²,single core wire:4～35mm²
11) Mounting type: Symmetrical rail (EN50022/DIN46277-3)
12) Ambient temperature: -40℃~+85℃
13) Permissible humidity: 30%~90%
14) Degree of protection: IP20
15) Housing material: UL94V0
16) Disconnection indicator: Mechanical indicator (Green: OK, Red: Replace)
17) Temperature monitoring T: inside：~100℃
18) Remote control contact: Optional

Parameter Name	Parameter Value
Type	lightning surge lightning strike surge current
Display	digital
Technology	electronic
Other characteristics	multifunction remote DIN rail