Best Relay pcb Relay

CZH-Labs DIN Rail Mount 12V Passive 2 SPST-NO 30Amp Power Relay Module.

  • DIN Rail Mount Passive 2 Channel SPST-NO 30 Amp Power Relay Module..
  • High quality DIN rail mount carrier, can support width 35mm /32mm / 15mm rail..
Check Stock

NOYITO 2-Channel 5V Computer USB Control Switch Relay Module Drive-free relay module Plug and Play Suitable for PC Smart Controller

  • 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..
Check Stock

Diyeeni 4-Channel 12V USB Control Switch Relay Module, Relay Board Computer Smart Switch Controller, PC Relay Module Expansion Board, Relay Board for Automation

  • 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..
Check Stock

Velleman K2639 Liquid Level Controller

  • power supply: 12-14V AC or 16-18V DC / 100mA.
  • dimensions: controller PCB: 4.1 x 2.4" sensor PCB: 4.1 x 1.
  • you can substitute your own sensor probes.
  • THIS IS AN ELECTRONIC KIT AND REQUIRES ASSEMBLY..
Check Stock

Siemens 3TX7131-4CF13 Basic Plug In Enclosed Power Relay, DPST-NO Contacts, 30A Contact Rating, 120VAC Coil Voltage

  • 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.
Check Stock

DaierTek 12V Fuse and Relay Box 6 Slots Relay Block 6 Slots ATC/ATO Fuse and Relay Block with Relay Universal Waterproof Fuse and Relay Box Kit for Automotive Car Truck Marine Boat

  • Large Capacity Relay Holder – This relay box is 6 slots relay panel design, which includes 5 slots for 5 pin Bosch style relays, 1 slot for RTT7121 4 pin relay..
  • ATC/ATO Fuse Relay Box – This fuse block with relay is also 6 slots relay holder design for ATC/ATO fuses, which makes the fuse relay become safer when use..
  • Suitable Terminals – This 12v relay box will also come with terminals for relays and fuses, which will enables you to install and use the fuse and relay box at once..
  • Top & Bottom Cover – This relay box 12v automotive will come with a top cover and a bottom cover, which makes the relay fuse box become a waterproof relay box..
  • What you get – 1 x Fuse Relay Block with Top and Bottom Cover, 5 x Bosch Style 5 Pin Relay, 1 x RTT7121 4 pin relay, 16 x Blade Fuses(4 x 10A, 4 x 20A, 4 x 25A, 4 x 30A), 41 x Metallic Terminals, 1 Year Warranty. Feel free to contact us if confused..
Check Stock

Electronic Specialties 191 Relay Buddy Pro Test Kit

  • Kit includes Relay Buddy tester, 5 new relay adapters and blow mold case.
  • Relay Buddy is a quick go/no go tester for the most common automotive relays.
  • With the included adapters, Relay Buddy now tests 5 different relay types and also tests shielded relays.
  • Relay Buddy will fail the relay and light the red LED if any of the test cycle proves unsuccessful during the test session.
  • Settable to 4 and 5-pin relay and uses vehicle's 12 volts battery for power.
Check Stock

Dorhea ESP8266 ESP-12 NodeMcu D1 Module WeMos Lua 4M Bytes WLAN WiFi Internet Development Board + Relay Shield + 2.54mm 40Pin Single Row Male Pin Header - 3Set

  • 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..
Check Stock

Ximimark 1Pcs ESP8266 Network Relay WIFI Module 220V 10A DC 7-30V 4 Layers Board TVS Input Automatic Protection

  • 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).
Check Stock