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GCR1-F

GCR1-F
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Magnetic Latching Contactors (GCR1-F)

 

Magnetic latching contactors of both block and bar mounted types are fitted with a special electromagnet which enables them to remain in the "On" position when the coil is no longer energised.

Applications

The special properties of magnetic latching contactors make them suitable for a large number of applications.

Refineries, power stations, excitation circuits.
Contactors remaining in the closed state for long periods.Examples:refineries, power supplies,low voltage distribution.
Selective opening control.
No unwanted opening and closing of the main power poles.
Current carrying at voltages up to 1000 Volts.

Properties

Retention of the sequence memory in automatic control equipment in the event of loss of control voltage.
Energy saving, since the source of supply to the coil does not need to supply current when the contactor is latched in the
    closed state.
Change of state from "Closed" to "Open" by current signal through the coil.
Unaffected by mains interference.
Utilisation of contactors beyond their breaking capacity, as operations are performed off-load.
Contactors are silent in the latched position.

Operation of the electromagnet (GCR1-F block contactors)

GCR1-F magnetic latching contactors are fitted with a double coil with 3 terminals comprising a latching winding and an
    unlatching winding. The 2 windings have a common point which can necessitate special wiring precautions when the
    latching supply is separate from the unlatching supply.
The power supplies may be a.c. or d.c. For d.c. operation, the polarities indicated must be complied with.
Operating precautions:the 2 windings must not be supplied simultaneously,a winding must not be supplied
    continuously,supply to the coils must be via pulsed contacts.
Manual opening: if the control voltage is not present, the contactor can be unlatched manually.


Selection guide for utilisation category AC-3

 

Rated operational current inAC-3(q55) Rated operational power (standard motor power ratings) Reference
220V240V 380V400V 415V 440V 500V 660V690V
440V 500V 660V
690V
kW HP kW HP kW HP kW HP kW HP kW HP
150 35 130 40 54 75 100 80 110 80 110 100 - 65 - GCR1-F1503
150 35 130 40 54 75 100 80 110 80 110 100 - 65 - GCR1-F1504
185 175 140 55 75 90 185 100 136 100 136 110 - 100 136 GCR1-F1853
185 175 140 55 75 90 185 100 136 100 136 110 - 100 136 GCR1-F1854
265 245 230 75 100 132 180 140 180 140 190 160 - 147 200 GCR1-F2653
265 245 230 75 100 132 180 140 180 140 190 160 - 147 200 GCR1-F2654
400 385 365 110 150 200 270 220 300 250 340 280 - 185 250 GCR1-F4003
400 385 365 110 150 200 270 220 300 250 340 280 - 185 250 GCR1-F4004
500 500 435 147 200 250 340 280 380 295 400 335 - 335 - GCR1-F5003
500 500 435 147 200 250 340 280 380 295 400 335 - 335 - GCR1-F5004
630 540 470 200 270 335 450 375 500 400 545 450 610 450 610 GCR1-F6303
630 540 470 200 270 335 450 375 500 400 545 450 610 450 610 GCR1-F6304



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Add: No.6 Floor,Jinye Mansion, Lvzhuang, Liushi, Yueqing, Zhejiang, 325604 P.R. China   Tel: +86-577-62776000    Mob: +86-159 5877 6000    Fax: +86-4008875666 Ext 088150