Page 81 - Enclosed

ENCLOSED SWITCH-DISCONNECTORS 81

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Technical data
Enclosed switch-disconnectors (DC)

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Technical data according to IEC 60947 for enclosed OTDC Switch-disconnectors OTDCP 16...32
Switch size A OTDCP16 OTDCP25 OTDCP32
Rated insulation voltage Pollution degree 2 V 1250 1250 1250 03
Pollution degree 3 V 1000 1000 1000
Sielectric strength 50 Hz 1 min kV 6 6 6
Rated impulse withstand kV 8 8 8
voltage
Rated thermal current Ith DC-20 In enclosure A 25 32 45
40˚C
In enclosure A 25 32 32
60˚C
Rated operational current / 660 V One circuit A 16/2P 25/2P 32/2P
poles in series Two circuits A 16/2Px2 25/2Px2 32/2Px2
DC-21B
1000 V One circuit A 10/2P 16/2P 20/2P
A 16/3P 25/3P 32/3P
Two circuit A 10/2Px2 16/2Px2 20/2Px2
Rated short-time withstand R.M.S. -value kA 0.8 0.8 0.8
current, I cw
1000 V, 1 s
Power loss / pole At rated W 0.15 0.3 0.5
current

1) 1000 V with all the poles connected in series, 600 V with 2 poles in series

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Color codes of the enclosures / enclosed switch-disconnectors
Color code/cover Color code/box
Plastic enclosures
BW, grey cover RAL 7012 RAL 7035
BW, light grey cover RAL 7035 RAL 7035
BW, yellow cover RAL 1021 RAL 7035
OTP and OT, grey enclosure RAL 7035 RAL 7035
Steel sheet enclosures
OTL RAL 7035 RAL 7035
OT NCS 1704-Y15R NCS 1704-Y15R