Page 13 - 1SBC104119C0202_MainCatalog_R contactors
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Construction characteristics

Low current breaking for DC circuits                                                                                                                                                                                                                                                                                                   2
R63 … R2100 contactors
If the breaking current is lower than 50 % of the contactor
rating, permanent magnet must be added. Please consult us.
Refer to blowout code table in DC circuit switching

Control circuit                                              The electro-magnet is built with a magnetic circuit and a coil.
                                                             It is mounted on the right side or on the frame center, in stan-
Rectifier                                                    dard. It can be mounted on the left side on request.

Economy resistor                                             AC control circuit supply:
                                                             RR electro-magnet
                                                             The coil is fed from an AC supply via a rectifier and an
                                                             economy resistor.
                                                             The control supply frequency is 50/60 Hz in standard.
                                                             For others frequencies, please consult us.

                                                             DC control circuit supply:
                                                             RE electro-magnet
                                                             The coil is fed from a DC supply via an economy resistor.

                                                             Latching version
                                                             (see following pages)
                                                             Magnetical latching for R63 … R200
                                                             Mechanical latching for R500 … R5100

Low consumption coil for R63 … R500 contactors (on request)

–– Up to 6 times less in control power consumption at holding
–– Reduced width up to 15 % compared to standard R contactors
–– Control voltage available:

   --24…440 V 50 / 60 Hz
   --24…250 V DC
–– Example of type: IORE63..-LC.

Principle                                               A varistor and a lagging contact for holding winding
                                                        insertion are factory mounted.
              Uc
A1 A2                                                   Only a part of the winding (B1) is energized at closing.
                                                        After opening the NC contact, the complete coil (B1 +
                         B2 = Holding                   B2) is used for contactor holding.
                                                        Varistor
                          B1 = Pull-in
                                                                   U
                                                    A3                                                                                                                                                                                                                                                                1SBC104086S0201

                                                                                                                  ABB R contactors | 2/3
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