Taihua 3-phase Current Motor Protector Overload/UnderLoad AS-22A

Short Description:

The Taihua Electronic AS-22A 3-phase Current Motor Protector is a cutting-edge product designed to provide optimal protection for three-phase motors. It has been engineered to protect against a wide range of electrical faults, including overload, underload, phase loss, and phase unbalance.One of the most notable features of the AS-22A is its built-in microcontroller, which allows for precise and accurate monitoring of the motor’s electrical signals. This ensures that any irregularities or faults are detected and addressed immediately, preventing further damage to the motor.The AS-22A also boasts advanced protection against short circuits and overcurrent conditions. Its adjustable overcurrent settings allow users to customize the device to the specific needs of their applications. Additionally, its inverse time characteristics allow for quick and effective responses to different levels of overcurrent, minimizing motor damage in the event of an overload.For added convenience, the AS-22A has a user-friendly design that makes it easy to install and operate. Its compact size allows it to be easily mounted in a control panel, and its straightforward interface ensures that users can quickly program and customize settings to meet their specific requirements.Moreover, the AS-22A has been rigorously tested to ensure its reliability in even the harshest industrial environments. It features advanced anti-interference technology that filters out unwanted electrical signals, preventing false trips and ensuring smooth operation.In summary, the Taihua Electronic AS-22A 3-phase Current Motor Protector is an innovative and reliable solution for three-phase motor protection. Its advanced features, user-friendly design, and high level of efficiency make it an ideal choice for any industrial application that requires effective motor protection.

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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

(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
Trip level	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