Page 12 - 1SBC104119C0202_MainCatalog_R contactors

Construction characteristics

Auxiliary frame Auxiliary contacts This design offers a great
Upper connection flexibility with standard types as
well as special variants
2
Electro-magnet Flexible design
Main frame Main poles with arc chutes
R contactors are built with a main frame supporting
Lower connection main poles, electro-magnet, auxiliary contacts and
propose:
–– Variable number of N.O. and N.C. poles, with or

without blowout coils
–– Large number of N.O. and N.C. auxiliary contacts
–– Control circuit for standard and specific voltages
–– Mechanical or magnetical latching available.

All parts are easily accessible and removable from
the front.

Main frame

The main frame is designed with a fixed bar and a rotating shaft linked by 2 bearings.

All parts (poles, electro-magnet, auxiliary contacts) are mounted on this frame.

Small frame for R63 ... R500 contactors Large frame for R800 ... R5100 contactors

Fixed bar Auxiliary frame

Rotating shaft Bearings

Main poles

Arc chute The moving contacts are similarly mounted and move directly
Arcing horn with the rotating shaft.
Fixed contacts
Moving contacts A blowout coil
The standard blowout coil is rated to carry the total current
Each pole is designed with: flowing through the poles. 1SBC104086S0201
Fixed and moving contacts
The fixed contacts are mounted on an insulated support Arc chutes
screwed onto the fixed bar. It ensures a rapid extinction of the arcs. Quick and easy
removal of the arc chutes allows an easy inspection of the
2/2 | ABB R contactors contacts and their replacement if necessary.

Arcing horn
It assists the elongation and breaking of the electric arc (not
applicable to LOR couplers).