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Issue 17
25
Single String DC Switch Disconnectors -
Selection Chart DC-21B
Please select the switch disconnector according to themaximum voltage and current output of all upstream PVmodules, thismust include
all corrective factors according to relevant standards.
Two String DC Switch Disconnectors -
Selection Chart DC-21B
insulated enclosure
DC SwitchDisconnectors - Single&Two StringDC-21B
8 - 50A
• up to50 amps@1000VDC togive higher rating
• permanentmagnets in the contact body used to reduce arcing time
• non-polarity sensitive
Ratings Per String (220V - 500V)
Order CodeNo.
FIG.
220V 250V 280V 330V 340V 375V 400V 420V 440V 460V 500V
25A 21A 21A 20A 20A 18A 18A 11A 11A 11A
KG20T104/GB-P103KL51V
FIG1
28A 28A 28A 25A 25A 23A 23A 15A 15A 15A 12A KG32T104/GB-P103KL51V
FIG1
50A 50A 40A 40A 40A 40A 40A 30A 30A 30A 30A KGD40TD104/D-P004KL11V
FIG2
50A 50A 50A 50A
40A 40A 40A 40A KGD40BTD106/D-P004KL11V
FIG3
50A 50A 50A 50A 50A KGD40BTD108/D-P004KL11V
FIG3
Ratings Per String (510V - 1000V)
Order CodeNo.
FIG.
510V 560V 600V 660V 680V 690V 750V 800V 920V 1000V
20A 20A 20A 20A 12A 12A 12A 12A 8A 8A
KGD40TD104/D-P004KL11V
FIG2
25A 23A 23A
15A 15A
KG32BT106/GB-P103KL11V
FIG2
20A 18A 18A 18A 11A
KG20BT108/GB-P103KL11V
FIG3
40A 40A 40A 30A 30A 30A 30A 20A 20A 20A
KGD40BTD106/D-P004KL11V
FIG3
40A 40A 40A 40A 40A 30A 30A
KGD40BTD108/D-P004KL11V
FIG3
Switch - Disconnector 2&4pole.
• IP66/67 Protection
• black/grey padlockable handle
• grey insulated enclosure (RAL7035)
• switch interlockedwith lid to
prevent opening in ‘ON’ position
• class II compliant
• rated for use in ambient temperatures up to 50
0
C
Including
NEW
KGD40
KGD40only:
Voltage
Order Code
No.
FIG.
250V 375V 400V 450V 500V 600V 650V 660V 750V 800V 850V 920V 1000V
25A 25A 25A 25A 21A 20A 20A 18A 18A 18A 11A 11A
KG20T104/D-P003KL51V
FIG 1
25A 25A 23A 23A 23A 15A 15A 12A KG32T104/D-P003KL51V
FIG 1
50A 40A 40A 30A 30A
KGD40TD102/D-P003KL11V FIG 2
50A
40A 40A 40A 30A 30A 30A
20A 20A 20A KGD40TD103/D-P003KL11V FIG 2
50A 50A 50A
40A 40A 40A 40A 30A 30A 30A KGD40TD104/D-P003KL11V FIG2
50A 50A 50A 50A
40A 40A 40A KGD40BTD106/D-P003KL11V FIG 3
50A 50A 50A 50A KGD40BTD108/D-P003KL11V FIG 3
Single String
Two String
