ReviewsGeneral Relays

waveshare Raspberry Pi Power Relay Board Expansion Board Module Three Channel(3-ch) for Raspberry Pi A+/B+/2B/3B/3B+/4B Loads up to 250VAC/5A,30VDC/5A

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards.
High quality relays, loads up to 5A 250V AC or 5A 30V DC.
Photo coupling isolation, prevent interference from high voltage circuit.
Onboard LEDs for indicating relays status.
Relay control jumper, allows to control the relays by custom pins other than the default pins.

40A/30A High Switching Capability. These relays have a universal application and can be used in automotive setups, car sound systems, security systems, and various other applications..
Pin Specifications: Ground (85), VDC (30), Trigger (86), Output N/C (87a), and Output N/O (87).
These Relays are Interchangeable/Compatible with: All automobiles and devices equipped with a 12-14 Volt DC power source.
Package includes: 10 pack electrical relays.

6-way fuse box 6-relay holder with spade terminals and 6pcs fuse, 6PCS 4Pin 12V 40A relays(5PCS 4Pin 12V 40A Relays,1PC RTT7121 4-Pin 12V 40A relay).
Suitable for all marine, motor-home, automotive & motorsport applications..
Waterproof connector.Can be installed in circuit..
Can be fixed through 2 pre moulded holes on side..
Package Includes:1 Piece Relay Holder Box with fuses 4-pin relays and 36 Pieces Pins terminals..

Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards.
The RPi Relay Board gives your Pi the ability to control high voltage/high current devices, easily makes normal home appliances become intelligent..
High quality relays, loads up to 5A 250V AC or 5A 30V DC.Photo coupling isolation, prevent interference from high voltage circuit.
Relay control jumper, allows to control the relays by custom pins other than the default pins.Onboard LEDs for indicating relays status.
Comes with development resources, including examples in wiringPi, WebioPi, shell, python, and bcm2835.

【12V】Working voltage is DC 12V, you can easily find suitable power for this relay..
【reverse polarity protection.】This signal decoder relay ahs reverse polarity protection which can extend the service life..
【8 modes】8 modes of operation: Non-locking (Momentary ), self-locking (Toggle), inter-locking(Latch), 5/20/60/120/250-second delay..
【default control】The default control command is 1/2/3/4. Example: Dial 1 to control relay 1, dial 2 to control relay 2, dial 3 to control relay 3, dial 4 to control relay 4.
control commands can be changed any 1-4 bits. (For more details, refer to "AD22B04_4 channel DTMF controller commands setting manual ")..
【operating current】Standby 11-13 MA, 1 relay "open" 44MA, 2 relays "Open" 77MA, 3 relays "Open" 110MA, 4 relays"open" 140MA..

Built-in Relays - The new control module has built-in relays which eliminates 90% of wiring for a cleaner, faster, simplified installation. This system will shave AT LEAST an hour off the install time.
Single wire connections: No need to buy extra wire or make splice connections. Our new control module includes a wiring harness w/1 WIRE to run to each side of the vehicle & connect to the solenoid.
Programmable Safety Feature - To prevent accidents, our new control module automatically disables the door popper system if it sense that the vehicle is running.
Redesigned Remotes - Sleek two-button design w/a sliding cover to prevent accidental door opening while the remote is in your pockets. Press both buttons at the same time for optional trunk release!.
(2) Heavy-duty solenoids (45 lb. max pulling force), (2) chrome door poppers, RC receiver w/built-in relays per door, (2) 2-button 3 transmitters, (2) push buttons, steel linkage cable.

Package content: there are 5 pieces of 4.7 ohm 1-pin PTC starting relays and 5 pieces of 750C-0005P refrigerator overload protectors in the package,....
Compatible models: refrigerator overload protectors can effectively prevent the compressor in the refrigerator from overheating, they can be effective....
PTC starting relay: the PTC starter relay is a universal starter relay, applied in various brands of mini refrigerators and coolers.
Easy to install: the refrigerator start relays are durable, reliable and not easy to rust thanks to plastic and brass materials.
Wide applications: the 4.7 ohm 1-pin PTC start relays and 6750C-0005P refrigerator overload protectors are compatible with most mini refrigerators,....

Weatherproof Mini "280" relay connector kit..
Fits any automotive industry standard Mini "280" weatherproof relays regardless of manufacturer. Hella mating relays include 931410087, 931410082, 931410057, 931410917..
Kit includes plastic connector housing, external housing seal, (7) 6. 3 mm locking terminals, (6) various wire seals..
Package dimensions:5.91" (L) x 3.62" (W) x 1.94" (H).

3 diagnostic trouble codes help define the cause of the bad relay.
Fails bad relays - Good/Bad indication, green light for PASS, red light for FAIL with flashing trouble code.