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GMC Magnetic AC/DC Contactor Switch UKC(D)1-9A,12A,18A,22A 220V~690V 1NO 1NC Optional Accessories
GMC series Magnetic AC /DC contactors are suitable for using in the circuits up to rated voltage 660V AC 50/60HZ, rated current up to 800A, for making, breaking, frequently starting & controlling the AC motor and it can be combined with the auxiliary contacts, mechanical interlocking unit, switchover capacitor and etc. With the thermal relay, it is combined into the electromagnetic starter. The contactor is produced according to IEC947-2, VDE0660 & BS5452.
1. The cover for preventing electrical shock on the top of ac/dc contactor.
2. AC Contactor can be connected directly without other fittings
3. Installed by screws or on the 35mm DIN rail directly
|Type||AC3 duty||Life time(x 104)||Aux. contact|
|UKC1-9||2.5kW 11A||5kW 9A||4kW 7A||4kW 5A||250||2500||1NO1NC|
|UKC1-12||3.5kW 13A||5.5kW 12A||7.5kW 12A||7.5kW 9A||250||2500|
|UKC1-18||4.5kW 18A||7.5kW 18A||7.5kW 13A||7.5kW 9A||250||2500|
|UKC1-22||5.5kW 22A||11kW 22A||15kW 22A||15kW 18A||250||
Coil voltage(AC) :
50Hz: 24V, 42V, 48V, 100V, 110V, 220V, 240V, 380V, 400V, 415V, 440V, 500V, 550V
60Hz: 24V, 48V, 110V, 120V, 208V, 220V, 240V, 277V, 380V, 440V, 480V, 600V
12V, 20V, 24V, 48V, 60V, 80V, 100V, 110V, 125V, 200V, 220V, 250V
AC/DC contactor has four main components:
( 1) the electromagnetic system, including the attraction coil, a movable iron core and the static iron core;
( 2) the contact system, comprising three main contacts and a two normally open, two auxiliary normally closed contact, it and the movable iron core is connected together are linked with each other;
( 3) arc extinguishing device of large capacity, general AC contactor with arc extinguishing device, in order to quickly cut off the arc, from burning the main contact;
( 4) insulation casing and accessories, all kinds of spring, a transmission mechanism, a short circuit ring, wiring column.
IEC utilization categories
The current rating of the AC/DC contactor depends on utilization category. Example IEC categories in standard 60947 are described as:
AC-1 - Non-inductive or slightly inductive loads, resistance furnaces
AC-2 - Starting of slip-ring motors: starting, switching-off
AC-3 - Starting of squirrel-cage motors and switching-off only after the motor is up to speed. (Make Locked Rotor Amps (LRA), Break Full Load Amps (FLA))
AC-4 - Starting of squirrel-cage motors with inching and plugging duty. Rapid Start/Stop. (Make and Break LRA)
Normal working conditions and installation conditions
1. Surrounding air environment is from -5 to +50 degrees Celsius.
2. Altitude does not exceed 2000m.
3. The tilt with the vertical is not more than 5 degrees.
4. The pollution degree of installation sites is level 3.
5. Installation category is class II.
6. No space of significant shake and shock and vibration.
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