Relay Module 5V (4 Channel) Active Low Trigger

Description

The module is equipped with four relays with a coil powered with a voltage of 5 V with optical isolation of input and mounting holes. The system allows you to control actuators with microcontroller ports or any commissioning set. Description: Relay module 4 channels with optoisolation – 10A / 250VAC contacts – 5V coil The module allows to control the actuators consuming a current of up to 10 A using the microcontroller’s ports or any commissioning set (including Arduino , Raspberry Pi and STM32 Discovery). Optical isolation separates the control signal from the part associated with the power relay, thereby providing work safety of the control system. Connection Connecting the power to the relay coil and the digital control signal is enough for proper operation. Leads are the standard strap goldpin pitch of 2.54 mm which enables connecting via connecting cables. The relay has the following leads: VCC – the power of optical isolator. JD-VCC – the power of the relay coil, by default connected with the VCC through a jumper. To control the voltage of 3.3 V, disconnect the jumper, to the pin JD connect the power to the coil 5 V and to the VCC connect the voltage of 3.3 V. IN1, IN2, IN3, IN4 – control inputs of relays attached by the low state. GND – ground of the system, all GND leads are connected with each other. Connectors KF (ARK) – the relay’s contacts are connected in accordance with the pattern on board of the module. Examples of usage Driver of light The driver of executors Switch for electric devices, including motors Specification of Relay module 4 channels with optoisolation Supply voltage of a logic part: 3.3 V – 5 V Enabled by low-state Relay: Coil voltage: 5 V The maximum voltage of contacts: 250 V AC, 125 VAC The maximum output of the relay: DC 30V/10A, AC 250V/10A Maximum current: 10 A Optical isolation EL817 ( documentation ) Board size 75 x 50 mm Diameter of mounting holes: 3 mm Distance between holes: 68 mm and 43 mm * Maximum contact voltage depends on the type of load – details in the documentation tab. 7. Contact Rating. USEFUL LINKS Documentation of the optical isolator EL817

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