Our QJNR Surge Protective Device is used to limit the transient over-voltage amplitude and to absorb, dissipate and discharge the surge current energy. Product is conforms to the ICE61643-1 GB18802.1

Effect:

Our SPD adopt a non-linear excellent characteristics pressure-sensitive resistors and in the high electricity resistance under normal operations. It leakage current is zero and to protect the power system at normal supply.

If the product is used in a high-class over-voltage condition, it can degrade the over-voltage class borne by the protected electric element to the next lower class in the Ns time to control the work voltage in the safe range. And release the over-load voltage at the same time. After our SPD will return the high electricity resistance quickly to avoide to effect the normal power supply system.

Feature:

Big protective ability : the biggest load current 150A(8/20 uS) and low residue voltage. Our SPD is use the patented varistor and high-performance component as internal metal shield module, built-in over-current overheating. With the temperature control circuit technology, it can be achieve Kevin connected.

Comprehensive protection: Our QJNR SPD can use for different power network and different necessaries with the different functions as: AS, FS, FS-SU.

Type QJNR

Item

QJNR-15，    QJNR-20

Rated voltage Un(V~) 220/380  220/380

Max persistent voltage Uc(V) 275/320 385/420/440  275/320 385/420/440

Protection level UP(Kv) ≤1.0≤1.35 ≤1.4 ≤1.4 ≤1.4 ≤1.0≤1.35 ≤1.4 ≤1.5 ≤1.5

Standard discharge current (8/20 pS)Imax(kA) 15     20