Taihua new type AS-21 Three phase overload motor protector

Short Description:

The new type AS-21 Three phase overload motor protector from Taihua is a highly efficient and reliable protective device designed for three-phase motors. This three-phase electronic type protector features a trip level of 30 and is easy to install, integrate and customize with various motor applications.One of the most significant features of this motor protector is its innovative design that combines the advanced electronic (integrated circuit) circuits with the core-through current sampling method. This combination ensures accurate and reliable detection of overcurrent conditions, which can damage your motor, and enables the device to respond immediately to prevent any further damage.The AS-21 Three phase overload motor protector is also very customizable, allowing you to set up and adjust the trip level, current limiting, and other parameters according to your motor’s specifications. Additionally, with the wide operating range of 0.5-400A, this protective device is flexible and could be used with various motor sizes and types.Fitted with easy-to-use front panels, AS-21 motor protector makes it easier for the operator to monitor the motor’s performance and quickly take any necessary action. The device is also compact and lightweight, making it easy to install and saving space in your electrical cabinet.In conclusion, the AS-21 Three phase overload motor protector from Taihua is an essential device that provides reliable protection for three-phase motors. Its innovative design, customizable parameters, and ease of use make it an excellent choice for protecting your motor and ensuring it runs smoothly and efficiently.


Product Detail

FAQ

Product Tags

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.

Model Number Structure

productDGDSG

(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

Main technical parameter

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

 

Application circuit example

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AS-21/AS-21B Circuit diagram

productDGDSG

AS-22 Circuit diagram

Outline and installation dimensions

AS-21/AS-21B appearance and installation dimensions

productDGDSF
图片 2
productDGSDG

AS-22 appearance and installation dimensions

productDGSDAF
productDGDSF

Application

1productDG
3productDG
4productDG

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