SDZ100-50 is class 1 switch-type surge protection. It can effectively release the incoming and inductive lightning on the low-voltage line of system, and effectively protect power supply equipment from lightning strike.

Characteristic:

1/ Impulse current reaches 10/350μs 60kA;

2/ Low voltage limitation;

3/ Nominal discharge current reaches 8/20μs 200kA;

4/ Strong capability to cut off residual current;

5/ Discharge monitor is applicable to configurate with RS485 communication.

Installation:

1/ Install on 35mm rail;

2/ It is necessary to series connect a fuse or air switch with SPD.

Maintenance:

SPD should be inspectied and maintenance in reuglar basis, pls duly replace SPD if it is red color in display window.

Standard Technical Data:

C: Class Ⅲ

Level	Ⅲ
Type	SDZ-40/275	SDZ-40/385	SDZ-40/420	SDZ-40/440	NPE
Max. continuous operation voltage (Uc)	275V	385V	420V	440V	255V
Protection voltage Up	＜1.3kV	＜1.8kV	＜2.0kV	＜2.2kV	＜1.5kV
Power Supply	1 phase/ 3 phases	1 phase/ 3 phases	1 phase/ 3 phases	1 phase/ 3 phases	1 phase/ 3 phases
Nominal discharge current, In (8/20μs)	20kA/phase	20kA/phase	20kA/phase	20kA/phase	20kA/phase
Max. discharge current, lmax (8/20μs)	40kA/phase	40kA/phase	40kA/phase	40kA/phase	40kA/phase
Leakage current	＜20μA	＜20μA	＜20μA	＜20μA	/
Cross section of connection wire	10mm2~16mm2 (Mul.)	10mm2~16mm2 (Mul.)	10mm2~16mm2 (Mul.)	10mm2~16mm2 (Mul.)	10mm2~16mm2 (Mul.)
Protection mode	L-PE; L-N; N-PE	L-PE; L-N; N-PE	L-PE; L-N; N-PE	L-PE; L-N; N-PE	L-PE; L-N; N-PE
Degradation indicator	Yes	Yes	Yes	Yes	Yes
Remote alarm	Optional by customer	Optional by customer	Optional by customer	Optional by customer	Optional by customer
Environment condition	-40℃~+85℃	-40℃~+85℃	-40℃~+85℃	-40℃~+85℃	-40℃~+85℃
Dimension (mm)	9018(n)65 (n is quanity)	9018(n)65 (n is quanity)	9018(n)65 (n is quanity)	9018(n)65 (n is quanity)	9018(n)65 (n is quanity)
Installation	35mm std. rail	35mm std. rail	35mm std. rail	35mm std. rail	35mm std. rail

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