Model Number

ANDELI-Au9

Application

Surge Protector  series (referred as SP) provides protection against surge current resulted from direct or indirect lightning strike or other instantaneous overvoltage.

Technical data

Index Type ADL1－D ADL 1－C ADL1－B Rated VoltageUn (V～)  220 220 380 Max. Continuous Operating VoltageUc (V～) 320 320 420 Protected Surge Current Up(kV)(8 /20μs) 1 1.5 2.5 Normal Discharge Current Ism(kA)(8 / 20μs 5times) 10 20 30 Max Discharge Current Imax(kA) (8 / 20μs 1time) 20 40 60 Response Time t (nS) ＜25 Power withstanding (J) (2mS) 640 640 1500 Ambient Temperature -40 ～+80 °C Colour of Function Unit yellow white red

one pole： provide protection against surge current of circuit single phase 220V.     Two pole： provide protection against surge current of L and N phase to earth of circuit single  phase 220V resulted from lightning.     Three pole： provide protection against surge current of S phase of TT, TN-S system 380V, and also protect S to earth of IT TN-C system of 380V     Four pole： provide protection against surge current against S, N to earth of TT TN-S system of 380V.

Operating Condition

The device shall be mounted indoor with less exposure onto Din rail 35mm       The device shall be installed prior to the circuit breaker and shall be reliably connected to earth with resistance not exceeding 4Ω and cross section of conductor not less 6mm2       The device is equipped with warning display. Green colour from the indicating window is for normal operation, and red colour is for function failure. The function unit shall be checked regularly and the unit shall be replaced upon any failure being detected.