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Surge Arrester for RS Interface

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Surge Arresters

DL-RS DD9

DL-RS DD25

Surge arrester for the interface RS DSUB 9 or arrester 25 connectors

Fine surge protection designed to protect serial ports of computers and control systems from pulse overvoltage effects.

Technical data

DL-RS DD9

DL-RS DD25

Location SPD

ST 3

ST 3

Maximum operating voltage Uc

18 V DC / 12,7 V AC

18 V DC / 12,7 V AC

C1 nominal discharge current (8/20 μs) per line In

150 A

150 A

C1 voltage protection level line - line at In UP

65 V

65 V

C3 voltage protection level line - line at 1 kV/μs Up

50 V

50 V

C3 voltage protection level line - PE at 1 kV/μs Up

980 V

980 V

Threshold frequency fG

55 MHz

55 MHz

Response time line - line ta

1 ns

1 ns

Response time line - PE ta

100 ns

100 ns

Degree of protection

IP 20

IP 20

Range of operating temperatures

– 40 °C … + 80 °C

– 40 °C … + 80 °C

Connection input – output

female DSUB 9 – male DSUB 9

female DSUB 25 – male DSUB 25

Meets the requirements of standard

EN 61643-21

EN 61643-21

Ordering number

8595090509684

8595090521600

For Catalogue, kindly check attachment.

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