Page 20 - OTDC Switch

20 SWITCH-DISCONNECTORS OTDC AND OTDCP

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Technical data
OTDC XS-Series IEC

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Technical data according to IEC 60947 for switch-disconnectors OTDC16…32F_
Switch size OTDC16F OTDC25F OTDC32F
Rated insulation voltage Ui Pollution degree 2 1) V 1250 1250 1250
Pollution degree 3 1) V 1000 1000 1000
Rated impulse withstand voltage kV 8 8 8
— Rated thermal current Ith In open air, normal conditions ²) A 25 32 45
OTDC16...32F_
In enclosure 40°C A 25 32 45
In enclosure 60°C A 25 32 32
...with cable or bar cross section Cu mm² 4 6 10
Rated operational current / 660V One circuit V 16/2P 25/2P 32/2P
poles in series DC-21B 36A/3P
Two circuits V 16/2Px2 25/2Px2 32/2Px2
1000V One circuit V 10/2P 16/2P 20/2P
V 16/3P 25/3P 32/3P
Two circuits V 10/2Px2 16/2Px2 20/2Px2
Rated short-time withstand R.M.S. -value Icw kA 0,8 0,8 0,8
current,
1000V, 1s
Power loss / pole At rated current W 0,15 0,3 0,5
Terminal cable size Cu mm² 2.5…16 2.5…16 2.5…16
Terminal tightening torque Counter torque required Nm 1.2...1.4 1.2...1.4 1.2...1.4
Operating torque 2P/3P/4P Nm 0,4…0,8 0,4...0,8 0,4...0,8
1) When used with external handle. For use with direct mounted handle, see installation instruction.
2) Normal conditions defined in IEC 60947-1, section 6.1.

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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
Pollution degree 3 V 1000 1000 1000
Sielectric strength 50 Hz 1 min kV 6 6 6
— Rated impulse withstand kV 8 8 8
OTDCP16...32_
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 / 660V One circuit A 16/2P 25/2P 32/2P
poles in series Two circuits A 16/2Px2 25/2Px2 32/2Px2
DC-21B
1000V 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 I cw kA 0.8 0.8 0.8
current,
1000V, 1s
Power loss / pole At rated W 0.15 0.3 0.5
current