Taihua 3 phase Overload/Under-load Protection Relay AS-22C

The Taihua Electronic motor protector AS22C is an innovative and reliable solution for protecting industrial motors. This cutting-edge product is equipped with features such as current phase failure protection, overload protection, and sensitive phase failure protection. One of the key features of the AS22C is its reliable operation. This is attributed to its advanced electronic circuit design and the use of Core-threading current sampling method in the main circuit. This ensures accurate and precise monitoring of the motor's electrical signals. The result is that any irregularities or faults are detected immediately and addressed, thus preventing further damage to the motor.Another highlight of the AS22C is its strong anti-interference ability. This protection technology filters out unwanted electrical signals, which ensures reliable and smooth operation, even in harsh industrial environments.The AS22C motor protector is designed to be user-friendly, with adjustable setting current value and overload delay settings, which allow users to customize the device to their specific needs. This feature contributes to the AS22C's good inverse time characteristics, which enable the device to respond quickly and effectively to different levels of overcurrent.Installing the AS22C is a breeze, thanks to its socket installation method. This makes it easy to mount securely in the control panel of any industrial equipment that requires motor protection.In summary, the Taihua Electronic motor protector AS22C is a technologically advanced product that provides reliable and efficient protection for industrial motors. Its features such as sensitive phase failure protection, adjustable setting current value, and overload delay, strong anti-interference ability, and easy installation make it a top choice for any industrial application that requires reliable motor protection.

Products Details

Main technical parameter

(1) Company code (2) Motor protector (3) Current sampling type (active type) (4) Design serial number (specification code) (5) B: Overload alarm (buzzer) N: With work/test transfer switch

Application

Working power AC380V、AC220V  50Hz;The allowable voltage fluctuation range is (85%-110%) Ue
Adjustment method Online current adjustment by potentiometer
Output control contact AS-21:a group of NC contactAS-22:Change over contact 1Z
Reset mode Power off reset
Contact capacity AC-12,Ue:AC380V, Ie:3A
Mechanical life 1×105 time
Electrical life 1×104 time

Installation

AS-21:Device type/din railtypeAS-22:Device type
 

Rated working current

Model

Setting current range

(A)

Suitable motor power

(kW)

Minimum sampling current

(A)

AS-21□(JD-5□)

0.5~5

0.25~2.5

≥3

AS-21□(JD-5□)

3~30

2~15

AS-21□(JD-5□)

1~100

0.5~50

AS-21□(JD-5□)

20~100

10~50

AS-22□(JD-6□)

63~400

30~200

10

 
Comparison Table of wire core threading

Motor Power(kW)

Corresponding setting current(A)

Core-threading turns (turns)

0.25~0.5

0.5~1

12~6

0.5~1

1~2

6~3

1~3

2~6

3~1

≥3

≥6

1

 
Overload Action Time Characteristics

Trip level

Different current multiples and action time PT

1.05Ie

1.2Ie

1.5Ie

7.2Ie

2

Tp:no  action  

within  2  hours

Tp:action  

within  2  hours

Tp≤1min

Tp≤4s

5

Tp≤2min

0.5s<Tp≤5s

10(A)

Tp≤4min

2s<Tp≤10s

15

Tp≤6min

4s<Tp≤15s

20

Tp≤8min

6s<Tp≤20s

25

Tp≤10min

8s<Tp≤25s

30

Tp≤12min

9s<Tp≤30s

  Anti-time characteristic diagram of overload protection 图片 1  

Model Number Structure

Features

●Conform to GB/T14048.4 and many other national or industry standards.
●Three-phase electronic type, the trip level is 30.
●Possess current phase failure and overload protection functions, sensitive phase failure protection, reliable operation, and anti-interference ability Strong, set current value and overload delay are continuously adjustable; and have good inverse time characteristics and other advantages point.
●The main circuit adopts the core-through current sampling method, combined with advanced electronic (integrated circuit) circuits.
●Installation method: socket type, Din-rail type installation.

Wiring diagram

Outline and installation dimensions

AS-22C (30-160A、40-200A)

AS-22C (1-5A、5-50A、20-100A)

Application circuit example

Diagram (1)  The working voltage of the protector is 380V; the AC contactor is 380V

Diagram (2)  The working voltage of the protector is 220V; the AC contactor is 220V

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