BuyLog Flippingbook MAY 2025

DISCONNECT SWITCHES AND OPERATING MECHANISMS, BUYLOG SECTION 9

9-150

— OTDC XS-Series IEC and UL Technical data

— Technical data according to IEC 60947 for switch-disconnectors OTDC16…32U_

Switch size

OTDC16U

OTDC25U

OTDC32U

Pollution degree 2 1 Pollution degree 3 1

V 1250 V 1000

1250 1000

1250 1000

Rated insulation voltage Ui

Rated impulse withstand voltage

kV 8

8

8

In open air, normal conditions 2 In enclosure 40°C In enclosure 60°C

A

40

50

63

OTDC16...32U_

Rated thermal current Ith

A A

32 25

40 32

50 40 10

...with cable or bar cross section

Cu

mm² 4

6

One circuit

V 16/2P

25/2P

32/2P

660 V

Two circuits

V 16/2Px2

25/2Px2 25/2Px3

32/2Px2 32/2Px3

Three circuits V 16/2Px3

Rated operational current DC-21B / Poles in series

One circuit

V 10/2P

16/2P

20/2P

Two circuits

V 10/2Px2

16/2Px2 16/2Px3

20/2Px2 20/2Px3

1000 V 3

Three circuits V 10/2Px3

Rated short-time withstand current, 1000 V, 1 s Rated conditional short-circuit current I p (r.m.s.)

R.M.S. -value I cw

kA

1,0

1,0

1,0

I p (r.m.s.), 1000 V Max fuse size, gPV

kA

10 80

10 80

10 80

A

At rated current

Power loss / pole

W

0,1

0,2

0,35

Terminal cable size

Cu

mm² 2.5…16

2.5…16 1.2...1.4

2.5…16 1.2...1.4

Terminal tightening torque

Counter torque required Nm

1.2...1.4

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. 3 U and UT types only. (Not applicable for US nor UST)

— Technical data in accordance to UL508I for photovoltaic disconnect switches OTDC16…32U_ Suitable for use in photovoltaic systems in accordance with article 690 of the NEC.

Switch size

OTDC16U

OTDC25U

OTDC32U

UL Listed

Standard

UL508i

UL508i

UL508i

Rated ambient temperature

°C

-20…+60

-20…+60

-20…+60

One circuit

A

16/2P

25/2P

Rated current / Poles in series

600 V

Two circuits A Three circuits A

16/2Px2 16/2Px3

25/2Px2

32/2Px2

Short circuit rating

600 V

kA

5

5

5

Protection type

Max fuse size, RK5 fuse

A

80

80

80

Wire range

AWG 12-6

AWG 12-6

AWG 12-6

Technical data according to IEC 60947

See IEC table for type

OTDC16U

OTDC25U

OTDC32U