Top T73 Pcb Relay Reviews

Velleman K2639 Liquid Level Controller

8 Channel DPDT Signal Relay Module Board, DC 5V Version..
FR-4 fiber glass PCB, dual copper layers. Dimensions: 72.5mm x 150mm ( L x W )..
RY5W-K high quality signal relays, LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action..
Pitch 3.81mm / 0.15" screw terminal block, wire range 26-16AWG, strip length 5mm / 0.2", Metric M2 slotted screw..
Datasheet: https://images-na.ssl-images-amazon.com/images/I/A1vg1+5HA8L.pdf.

DIN Rail mount 8 Channel 10Amp SPDT Power Relay Module, DC 5V Version..
JS1-5V-F Power Relays. LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action..
DIN rail mount carrier: High quality Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail. FR-4 fiber glass dual layers PCB..
High quality terminal block: Pitch 5.0mm/0.197.

This kit allows you to assemble up to four of these solid state relays on a single PCB and control them all via I2C from your favorite microcontroller..
The Quad Solid State Relay Kit comes with four solid state relays rated up to 40A at voltages between 28-380 VAC so you can switch some serious power with this board all from a single Qwiic connector attached to a low-powered microcontroller..
Features: Operating Voltage: 2.5-3.6V (3.3V recommended). I2C Address: 0x08 (Default), 0x09 (Alternate via jumper). Max Current (Through Relay): 40A (24-380VAC). Zero Cross Trigger. Normally Open Circuit Only.
Includes: 1x Qwiic Quad Solid State PCB. 4x Solid State Relay - 40A (3-32V DC Input). 8x 4-40 Hex Nut. 8x 3/8in. Phillips Machine Screw - 4-40 Thread. Hook-up Wire 8" - 22 AWG (Red). Hook-up Wire 8" - 22 AWG (Black).
Assembly required. Tools are not included. You will need a screwdriver and wire clippers/strippers..

DIN Rail Mount 8 Channel DPDT Signal Relay Interface Module, DC 24V Version..
RYxxW-K high quality signal relays, LED indicator for each relay channel. Darlington transistors circuit driving relay, improve the reliability of action..
DIN rail mount carrier: High quality Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail. FR-4 fiber glass dual layers PCB..
Pitch 3.81mm / 0.15" screw terminal block, wire range 26-16AWG, strip length 5mm / 0.2", Metric M2 slotted screw..
Datasheet: https://images-na.ssl-images-amazon.com/images/I/A1vg1+5HA8L.pdf.

The esp8266 module is 11 digital input / output pins, all pins with interrupt / PWM / I2C / support 1 line (except D0).
1 analog input(3.2V max input). Micro USB connection.
WiFi internet development board 5V 1A switching power supply (switching power supply）onboard..
5V relay shield is a digital switch to control much higher voltages and currents than esp8266 mini microcontroller, controlled by the D1 , the relay will switch to allow current to flow or turn off, depending on wiring..
40 pin 0.1inch (2.54mm) male pin header connector PCB board pin strip electronic component, they are easy to be cut to any length if needed, you can cut or score with some electronic tool..
The pin header is an ideal connector for the PCB board and intergrated circuit, used widely in the computer and breadboard, compatible with raspberry pi or other electronic project..

The module uses HID technology, without any driver, plug and play. Support WIN7,10, XP 32-bit, 64-bit system, easy to use simple..
Onboard square USB interface, stable connection.
use of high-performance USB control chip.
use dedicated relay driver chip ULN2803, relay work more stable.
Power outlet and terminal, two access power mode convenient and flexible. After connecting the power, even if the computer shut down or USB from the computer pull out, the relay can also maintain the set state..
【NOTE: The 1-Channel 2-Channel module does not require an external power supply. 4-Channel 8-Channel modules require an external module power supply. 】PCB size: 56.5mm * 40.6mm, fixed hole size: 3mm, fixed hole center moment: 52.2mm * 36.6mm..

Onboard square USB interface, stable connection..
Use imported high performance USB control chip..
Use the special relay drive chip ULN2803, the relay works more stable..
Board power socket and terminal, two ways to access the power supply are convenient and flexible..

Applications Power supplies, heating & ventilation, control equipment.
2 pole 30 A, 2 CO or 2 NO contacts, High switching capacity up 30 A / 400 VAC,PCB- or quick connect terminals or chassis mount.
DC- or AC coil,4 kV / 8 mm coil-contact,Insulation to VDE 0631 and VDE 0700.

The ESP8266 Wifi module is designed with a 4-layer board. It is safer to use the relay PCB pin anti-climbing design. The access control server passes the TCP CLIENT mode. Controlled by the HTTP protocol..
Input overvoltage protection, TVS input, automatic protection will run when the voltage exceeds 33V. Single optocoupler isolated input, TVS input protection..
Wide voltage input, input voltage: DC 7V - DC 30V, input overcurrent protection..
220V 10A relay, one normally open, one normally closed. An output status indicator, an input status indicator..
Board dimensions: 65 × 40 × 20mm (1mm = 0.0393inch).

OMRON G2R-1-E industrial power relays, switching current up to 16A at 250VAC (or 30VDC), and easy to replace pluggable relays..
LED indicator for each relay channel , relay coil protection by means of a freewheeling diode..
High quality screw terminal block, FR-4 fiber glass PCB, dual copper layers..
Panel mount or DIN rail mount versions are available. Taiwan DINKLE fireproof nylon material DIN rail mount carrier (not China low quality carrier), can support width 35mm / 32mm / 15mm rail, and the carrier can be taken apart for panel mount use..

Non-drift silicon light sensor with IR filter.
DC relay with zero-crossing circuitry for extended life.
Ideal for single or multi-fixture HID and LED installations (up to 1650 W at 277 VAC).