Shopping Cart

Your cart is empty.

Your cart is empty.

DaierTek 12V Relay with Built-in Diode & 12 AWG Harness Socket 30A/40A Heavy Duty SPDT 5 Pin Relay Switch Waterproof for Automotive Car Marine Boat -8pcs

Free shipping on orders over $29.99

$29.99

$ 15 .99 $15.99

In Stock

1.Size:8 Pcs


About this item

  • 【30A/40A Relay】 - These 5 pin relays are rated at 12v 30A/40A (NO: 40A, NC: 30A), spdt heavy duty design relay switch.
  • 【Built-in Diode】 - This 12 volt relay has a built-in diode, which aims to consume the induced voltage that is generated by the coil while switching the status of automotive relay, and therefore protect the electric components from being damaged by the induced voltage.
  • 【12AWG Harness】 - The wires which come with this relay socket are 12AWG/16AWG design, the 12 awg wires include red, blue and yellow wires which are the wires for high power terminals of the spdt relay; and 16 awg white and black wires for the coil terminals.
  • 【Waterproof】 - This 5 pin relay 12v has seal ring inside the harness socket to improve its waterproof performance, makes it much safer under moist environment use.
  • 【Wide Application】 - The waterproof relay 12v acts as a bridge between switches and devices, which helps to achieve controlling high rating devices by small rating switches, suitable for auto, car, truck, marine boat, etc.



Product Description

relay 12v 12v relay 12 volt relay 5 pin relay automotive relay 40 amp relay
12v relay 40 amp relay automotive relay spdt relay
5 pin relay 40 amp relay waterproof relay waterproof relay 12v 12v relay with harness
relays relay 12v 12v relay 5 pin relay automotive relay 30 amp relay

Kindle Customer
2025-08-17 16:58:24
These are NOT chintzy relays. They're the real deal. I've been using them a couple of years and they work like a charm.
Jesse Facunla
2025-08-13 17:17:06
Design for the socket harness for relay are good and wires are very impressive, water tight design.
Anthony Ewald
2025-07-12 13:00:47
Very easy to wire up worked great for adding an electric fuel pump to my older sxs that operates of the ignition circuit. Very well built.
Ian
2025-06-06 09:09:10
Stout heavy duty relay, heavy gauge wire, weather proof seals, tight fitting connections. I've used them In the past with great success however this order is missing the mounting tabs.
michael
2025-05-30 14:03:47
Water proof and diode a great plus
Paul H.
2025-05-29 11:51:40
A good general purpose relay. This one has the diode, if you don't need the diode it doesn't come into play.
JI
2025-05-20 15:38:38
Great product, But It was missing 1 relay only, called Amazon twice to reimburse $5 ,which they agreed, it's been weeks and still waiting on $5, again Great product.Why you got 3 star's, not 5
Maurice D.
2025-04-30 16:20:35
Had to redo the relay setup for my plow lights and the chief issue was corrosion from salt and batteries i believe. These sealed u it's have so far kept the contacts nice and clean and the housing will accept other relays if need be.
Éric Bergeron
2025-04-08 12:11:07
Bon rapport qualité prix/prix
Marco
2025-04-05 18:51:52
Good relays and connector
Glenn Allan
2025-03-24 13:39:35
Contacts are not rated correctly. They stick / fuse together at well below the range expected.I have had to replace every one.
Marc Erick Loiselle
2025-01-15 17:30:42
I've installed those on two motorcycles for Quad Lock Waterproof 12V To USB Smart Adaptor for phone charger. This Adaptor doesn't shut down until battery gets below12.5V, but Triumph needs 12.6V to start. So this relay is installed so it will not discharge my battery when engine is shut off. Works great, Installed them last year, and still working perfectly.
Bev Hawkins
2024-12-04 14:57:01
nice product , transaction was easy shipped fast , pleased with product , wish the leads were a little longer .
Recommended Products

$67.99

$ 26 .99 $26.99

4.6
Select Option