OPS2 datasheet(173/192 Pages) ABB

173 / 192 page

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Accessories for motorized switch-disconnectors

Technical data for auxiliary contacts

ON and OFF-functions of main and auxiliary contacts

Main contacts

NO auxiliary contact

NC auxiliary contact

0˚

30˚

60˚

90˚

= Contacts in closed position 0

OFF

Closing:

1. Main contacts close

2. NO auxiliary contacts close

3. NC auxiliary contacts open

Opening:

4. Main contacts open

5. NO auxiliary contacts open

6. NC auxiliary contacts close

Handle indications and functions

• The handle indicates the position of the main contacts of

the switch with complete reliability in all situations.

If the contacts are welded together, the handle

does not reach the OFF-position but remains

between ON and OFF, maintaining the door

interlock and preventing padlocking.

• When operating the switch to the Test-position

with a test handle, the test auxiliary contacts change posi-

tion. The main contacts remain open.

OFF

Test

Handle position

Main contacts

Aux./Test contacts N.O.

Test indication contacts N.O.

Test

open

closed

open

closed

open

Function table of OTM160…4000 auxiliary contacts

ABB SWITCH-DISCONNECTORS – HIGH PERFORMANCE, COMPACT SOLUTION

173

ABB SWITCH-DISCONNECTORS – HIGH PERFORMANCE, COMPACT SOLUTION

173

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