Microcontroller development board can be used as modules, can be used as appliance control
5V - 12 V control signal of the TTL
Control DC or AC signals can control the 220V AC Load
there is a normally open and open normally closed contact
Useful to control a motor, a led strip, or any other module using arduino. How to use it: Just connect a digital output of your arduino to your relay module, and you can control a power-demanding appliance with the digital signal provided by your arduino.
SUPPORTS RELAYS & FUSES- Safely stores up to (5x) Bosch Style 40/30A 5-Pin Relays/30A 4-Pin Relays (compatible with 0.25" Pins), (1x) RTT7121A 4-Pin Relay, and (6x) ATO/ATC Blade Fuses.
INSTALLATION IS A SNAP- The Snap-Fit upper and lower cover cases allow easy access for relays, fuses, and wires.
ACCESSORIES INCLUDED- Metallic pins are included so you can effortlessly swap out relays and fuses from the back of the fuse relay box.
VERSATILE MOUNTING OPTIONS- Since most modern vehicles have angular/sloping engine bays or trunk areas, we engineered the mounting legs to snugly adhere to these surfaces; a rubber spacer is also included so you can mount the automotive relay box on flat surfaces too.
OEM-STYLE PROTECTION- Tidy up your vehicle's engine bay by securely stowing away your relays and fuses in this sturdy relay box for a clean factory look backed by unbeatable protection.