GEDA series single phase AC switching device

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GEDA series single phase AC switching device

1.GEDA introduction

This product is a multi-function power module installations, which integrates single-phase thyristor main circuit, phase transfer trigger and modulating circuit, temperature protection circuit, radiator, fans, switch-mode stabilized voltage power supply.

It is installed on the wall. It is a integrated electrical phase-shift open-loop systems, which allows hand-control,automation, linear control. It is stable in quality, convenient in using and with high precision. This module is widely used in inductive resistance loads, such as AC motor, transformer, temperature control, brightness modulation and AC voltage modulation, etc.

2. Internal lines connection, classification and name

3. Main technical standards(GEDA-50;70;120;200;250;350;500)

Function	Single phase thyristor AC voltage modulation
Input voltage	220V±20% 380V±20%
Power source	12V,1A
Controlling voltage	0-10VDC
Controlling current	4-20mA
Hand-control potentiometer resistance	10KΩ
Colling method	Wind-colling radiator				Electric fan:220V0.15~0.25A
Ambient temperature	-25~+55^oC
Proteltive temperature	75^oC±2^oC
Input voltage asymmetry degree	≤6%
Main circuit parameter
Parameter	Unit	Value
Load current	Arms	50	70	120	200	250	350	500
TRIAC over voltage	Vpk	800-1200
Frequency	Hz	50-60
Off state voltage rising rate	V/sec	500
On state voltage rising rate	A/sec	100
Off state leakape current	mArms	≤10		≤10		≤15		≤20
On state leakape current	Vrms	1.6		1.8		1.8		1.8
Voltage drop insulating voltage	Vrms	≥2500
Weight	Kg	6.5

4. Debugging method and Connection

Connections of control lines(50-150A module)
- 10V voltage control - 10K potentiometer control - 4-20mA control

GETA/GEDA series

Remarks:the interfaces of 200A—500A modules:VCC(red)、CON1(blue)、Econ(orange)、CON(yellow)、4-20mA(green)GND(black)others are blank See the right map connections is the same as above.

5. Connections

6. Exterior and dimensions

Type Dimension	GEDA-50-120	GEDA-200;250	GEDA-350-500
Volume LBH(mm)	350164159	350164231	380164231
Mounting hole FEΦ	33082Φ9	33082Φ9	33082Φ9

7. Cautions

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The module is dangerous or even damaged if output current is big when module operated in a small dredge angle.
Protection of the module: fast acting fuse should be applied in short circuit protection, for over voltage protection, we have adopted impedance capacitance absorbing and pressure responsive resistor, for over temperature protection, a temperature switch of 75℃ is applied, when the temperature of the load exceeds 75℃,no output until problem solved, the system will come back to normal as the temperature drops below 75℃.
This module is equipped with +12V working power supply.
The anode and cathode can’t be reversed when connecting external voltage and modulating current. In the modulation of voltage, multi-loop precise potentiometer is better to be used. Attention: only one way is allowed simultaneously.
The current of the module should be over 2 times as large as the current of the load if the load is impedance load.
The current of the module should be over 3 times as large as the current of the load if it is inductive load.
The current of the module should appropriately multiples if the current of the load changes greatly.The wires ends should be fixed to the electrodes of the module, the studs must be firm and have good planarpressure contact.
The wire ends and zones should be fastened, to avoid additive heat caused by bad contact, and covered by insulated heat- shrinking hose.
The housing of the equipment needs to connect to ground for the consideration of safety and interference.

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