Project Description

SC ac contactor

Introduction

AC contactor is widely used in power transmission system. Applicable to long-distance frequent switching on and switching end DC main circuit and large capacity control circuit in, it main control object is all motor, and can also be used for electric welder control, capacitor banks, and the electric heating device, lighting equipment and other loads. For example, power industry, industrial and mining enterprises, iron and steel plants, and some large power will use it. Can also cooperate with the fuse, the dynamic air circuit breaker, thermal relay and other electrical use, in order to better protect the line current.

An air conditioning unit is a complex system of electronic components that must work together so that your AC system can run at the right times.

Why do we need to use AC contactor?

We live around a lot of large equipment to start the knife gate will have a spark, arc, will have a security risk, if it is safe to contact the remote control is much more safe.

AC contactor is widely used in power transmission system. Applicable to long-distance frequent switching on and switching end DC main circuit and large capacity control circuit in, it main control object is all motor, and can also be used for electric welder control, capacitor banks, and the electric heating device, lighting equipment and other loads. For example, power industry, industrial and mining enterprises, iron and steel plants, and some large power will use it. Can also cooperate with the fuse, the dynamic air circuit breaker, thermal relay and other electrical use, in order to better protect the line current.

Its advantages: it has a large number of control, the action is rapid, safe and easy operation, etc., and has the function of under voltage release, the application is very extensive in industrial and agricultural production. Simple wiring. The contact point of the AC contactor is made of silver tungsten alloy, which has good electrical conductivity and high temperature resistance. Can prolong the service life of the switch, protect the electric equipment.

Type SC-03 SC-0 SC-05 SC-4-0 SC-4-1 SC-5-1 SC-1N
Max.volume of motor 200-240V 2.5 3.5 3.5 4.5 5.5 5.5 7.5
380-440V 4 5.5 5.5 7.5 11 11 15
500-550V 4 5.5 5.5 7.5 11 11 15
600-660V 4 5.5 5.5 7.5 7.5 7.5 11
Operating current
AC3(A)
200-240V 11 13 13 18 22 22 27
380-440V 9 12 12 16 22 22 30
500-550V 7 9 9 13 17 17 24
600-660V 5 7 7 9 9 9 15
Rated heating current(A) 20 20 20 25 32 32 50
Aux-contact layout Standard 1NO 1NO 1NO
1NC
1NO 1NO 1NO
1NC
2NO
2NC
Other 1NC 1NC 2NC
NC
1NC 1NC 2NO
2NC
4NO
4NC
Life of probability
(x10)
Electrical 200 200 200 150 200 200 200
Mechanical 1000 1000 1000 1000 1000 1000 1000
Type SC-2N SC-2SN SC-3N SC-4N SC-5N SC-6N
Max.volume of motor 200-240V 11 15 18.5 22 30 37
380-440V 18 22 30 40 55 60
500-550V 18 25 37 37 55 60
600-660V 15 22 30 37 55 60
Operating current
AC3(A)
200-240V 39 52 65 80 105 120
380-440V 37 48 65 80 105 120
500-550V 29 38 60 60 85 90
600-660V 19 26 38 44 64 72
Rated heating current(A) 60 80 100 135 150 150
Aux-contact layout Standard 2NO
2NC
2NO
2NC
2NO
2NC
2NO
2NC
2NO
2NC
2NO
2NC
Other 4NO
4NC
4NO
4NC
4NO
4NC
4NO
4NC
4NO
4NC
4NO
4NC
Life of probability
(x10)
Electrical 200 200 200 100 100 100
Mechanical 1000 500 500 500 500 500

Front Page  Title Document Type  Download
contactor AC Contactor Catalogue
13.0MB

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