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

Short Description:

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.

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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