ABB contact the specifications include 4 and 5.5KW mini contactors up to 400kW contactor group (AC3), building contacts (household and industrial use), Clapper contactors, thermal overload relays and electronic relays, as well as complete attachments, ensuring flexibility and meet customer needs. --------------------------------------------- ----- -------------------------------------------------- -------- ABB series AC contactor for AC 50Hz or 60Hz, rated insulation voltage 690-1000V, under the category of use in AC-3 rated working voltage of 380V, rated operating current of 9A-400A. AF400-30-11 200kW coil voltage: 48-130 / 110-250 / 250-500. Primarily for long-distance making and breaking circuit used for control of AC motor starting, stopping and reversing. Compliance with IEC947, VDE0660, GB14048 standards. ----------------------------------- Main structure and working principle: --------- --------- contactor is being installed direct-acting double break point structure, cover with arc-resistant plastic shell, A9-A16 automatic extinguishing, and A26-A110 has a U-shaped interrupter slice into shell, forming a closed interrupter interrupter good, arcing distance is zero. Contacts made of anti-welding and electrical wear-resistant silver-based alloy material, conductive properties, long life, environmental pollution. Using E-shaped core structure, small size. There are two coil wiring to choose from, one of the two terminals at the same end product, and the other two terminals, respectively, at both ends of the product, wiring flexibility. The base is made of glass fiber reinforced plastic, high strength, good dielectric properties. Mounting screws can also be used rail, to facilitate the rapid disassembly, conductive parts are not exposed, good safety performance. ------------------------- ----------------- Following characteristics and use of leading-edge new features, wide voltage circle "switch" type, no tremors pull characteristics, longer life, anti-drop voltage fluctuations and ability, retention and more reliable universal AC-DC power supply, designed to use more convenient pull small power supply needed Power smaller maintaining low power consumption, saving up to 50% of the rated current of a wide range (9-2050A), to meet a variety of customer needs ---------------------- ----------------- contactor contact contact insecure causes and treatment methods are not reliable contacts make contact with the contact resistance between the contacts movement increases, resulting in the contact surface temperature too high, so that the contact surface into a point contact, even non-conducting phenomenon. Cause of this failure reasons: there is oil, flower hair, foreign matter on contact. Long-term use, the contact surface oxidation. Arc erosion caused by defects in the formation of burrs or metal shavings particles. Moving parts have jamming phenomenon ------------------ normal operating conditions and installation conditions: ------------------- ------ 1, the installation site altitude does not exceed 2000M 2, ambient air temperature does not exceed +40 degrees, and the average temperature does not exceed the value 25H = 35 degrees, the ambient air temperature limit is -5 degrees 3, the air relative humidity at the highest place of installation does not exceed 50% +40 degrees, at a lower temperature allows a higher relative humidity, for example, 20 degrees up to 90%, due to condensation temperature to produce the occasional Special measures should be taken. 4. The level of contamination at the installation site for three 5, contactors allow vertical or horizontal installation, when installed vertically with the vertical tilt of no more than plus or minus 30% (see chart) -------- -------------------------------------------------- --------------------------- proper installation of wiring: --------------- Note Terminals Logo: The main circuit 1L1,3L2,5L3 end of the line; 2T1,4T2,6T3 for outlet side. Normally open auxiliary contact line side is: 13,23,33,43 ...... normally open auxiliary contact of the outlet end is: 14,24,34,44 ...... normally closed auxiliary contacts into the line side is: 11, 21, 31, 41 ...... normally closed auxiliary contacts outlet end is: 12,22,32,42 ...... coil terminals for A1 and A2