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product presentation

product name: outdoor ac hv disconnector

item no.: spd105-12/1250-r-a-s-d stands for 12kv outdoor single-pole ac hv disconnector with rated current of 630a, silicon rubber insulator, with mounting bracket,  stainless steel bolt and hardware.

                                        technical date (spd105-12/1250)

technical date

unit

value

rated voltage un

kv

12

rated current un

a

1250

rated frequency

hz

60

short time withstand current/duration

ka/s

31.5/4

rated withstand current(peak)

ka

80

power frequency withstand voltage, 50/60 hz/min

to earth and between phase

dry

kv

54

across the isolating distance

dry

kv

62

lighting impulse withstand voltage

to earth and between phase

kv

96

across the isolating distance

kv

109

creepage distance

silicon insulator

mm

516

epoxy insulator

mm

410

porcelain insulator

mm

400

creepage ratio

silicon insulator

mm/kv

43

epoxy insulator

mm/kv

34

porcelain insulator

mm/kv

33

mechanical endurance

(number of close-open operations)

time

3000

altitude

m

3000

ambient temperature

-40 70



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