5V 20A Relay Control Module High and Low Voltage Triggering 1-2-4-8-16 Channel

Description

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Product Details:
1 Channel
2 Channel
4 Channel
8 Channel
16 Channel
Product introduction:
The two-way isolated relay control module can select high level or low level to control the pull-in of the relay according to user needs. The module uses genuine high-quality power relays, the industry’s top ultra-small packaged optocouplers, high-power and high-voltage transistors, red signal indicators, military-grade double-sided PCB boards, comprehensive board layout considerations, stable performance, and can be widely used in various Power control occasions
One. Module description
The module uses genuine high-quality relays, AC 125V/20A, DC 14V/20A;
Using the industry's top quality ultra-small two-way isolation optocoupler, strong anti-interference ability and stable performance;
The working voltage of the module is 5V; there are 1 Channel, 2
Channel
, 4
Channel
, 8
Channel
, 16
Channel
module to choose from;
The user can select the control level of the relay, which can be high-level pull-in or low-level pull-in; the module contains a current-limiting resistor, which can be directly controlled by the positive and negative electrodes of the power supply, or the I of the microcontroller /O port control;
Fault-tolerant design, even if the control line is broken, the relay will not act;
The interface design is humanized, all interfaces can be directly connected through the terminal block, which is very convenient;
There are 4 fixing bolt holes for easy installation;
Relay status indicator (red)
two. Module interface
Module input control terminal
DC+: External DC power supply positive
DC-: External DC power supply negative
VREF: Reference ground wire of optoelectronic isolation control terminal,
If high level control is adopted: this signal should be connected to the negative terminal of the power supply of the user control panel
If low-level control is adopted: this signal should be connected to the positive terminal of the power supply of the user control board
CH-CH: Relay control interface,
If VREF is connected to the negative pole of the power supply: when this port is high (relative to VREF), the corresponding relay is closed
If VREF is connected to the positive pole of the power supply: when this port is low (relative to VREF), the corresponding relay is closed
Note: The isolated relay module is to adapt to the severe electromagnetic environment or high signal requirements. If you want to achieve a complete isolation effect, the power supply of the user control board (that is, the reference power supply connected to the VERF) and the power supply of the relay module (DC+/DC-) should be distinguished. If the two power supplies share the same ground, it is not a complete isolation effect. At this time, users can choose our more economical standard relay module
Package Included:
1x
1/2/4/8/16
Channel
Relay control module
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If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item.