--- product_id: 9391298 title: "Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control" brand: "yeeco" price: "€ 28.29" currency: EUR in_stock: false reviews_count: 13 url: https://www.desertcart.at/products/9391298-yeeco-30a-high-current-12v-contactor-relay-switch-power-switch store_origin: AT region: Austria --- # 30A max current capacity 12V DC coil voltage Compact 4-terminal shunt design Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control **Brand:** yeeco **Price:** € 28.29 **Availability:** ❌ Out of Stock ## Summary > ⚡ Elevate your power control game with Yeeco’s 30A relay switch — because your setup deserves the best. ## Quick Answers - **What is this?** Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control by yeeco - **How much does it cost?** € 28.29 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/9391298-yeeco-30a-high-current-12v-contactor-relay-switch-power-switch) ## Best For - yeeco enthusiasts ## Why This Product - Trusted yeeco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust & Reliable:** Silver alloy contacts ensure long-lasting conductivity and minimal wear under high load. - • **Spike-Proof Design:** Built-in capacitor and diode protect sensitive electronics from voltage spikes and reverse currents. - • **Compact & Versatile:** Slim 7x5 inch footprint with DIN rail mount compatibility for sleek, space-saving installs. - • **Powerhouse Performance:** Handles up to 30 amps of continuous current for heavy-duty electrical control. - • **Seamless 12V Integration:** Optimized for 12V DC systems, perfect for automotive, HVAC, and smart home upgrades. ## Overview The Yeeco® 30A High Current 12V Contactor Relay Switch is a compact, high-performance electrical control module designed for demanding DC power switching applications. Rated for up to 30 amps and 250V max control voltage, it features a durable silver alloy contact and a 4-terminal shunt design. Ideal for automotive, cooler, heater, and water heater control, it integrates seamlessly into 12V systems with built-in spike protection for enhanced reliability. ## Description 30A High Current 12V Contactor relay Switch DC power Switching Control Board electrical relay switches Input: DC 12V (relay powered) Output: 30A single channel relay of 4 terminal shunt Control current ：max 30A Maximum control voltage：250V coil current:60MA packing including： 1x 12V relay Switch Review: Works fine - happy with it. Do wish the screw terminals were bigger. - Worked fine out of the box. Small / compact. Wish the screw terminals were bigger to support a standard lug. On this unit I had to use the smaller lugs (which I had on hand). Because i used this as an interface with my Honeywell Vista 20P, trigger 17 (Programmable Output) for my alarm siren / bell / accessories.... I needed a reply that did not have an optical sensor.... just a straight contact to the relay and low current consumption rating on the coil. The Vista 20P has limited output for trigger 17 (limit to max 100ma).... so I also removed one leg of the small led on the board to not light up. You can add a led on the output of the relay contact if you really need a led to show you when the relay is activated. This saved about 5 ma which reduced my limit on trigger 17 output. What is nice about this is the fact I did not have to spend another $100 bucks for a honeywell add-on power supply that only supported 1.5 Amps, and a honeywell relay board. By connecting the output of trigger 17 to this relay directly, then using a separate battery and power supply to support the Wiper/NO contact loads on the output side.... I am able to run up to 30 Amps if desired .... but really only using about 5 amps at this time for everything. This relay board also has a nice large value capacitor across the coil, and I recall a diode as well... This helps with any spikes from the coil and/or reverse current when the relay disengages.... the spike can effect sensitive item (chips). I had no problems with this replay on my Vista 20P board. I made a plex-glass board for 2 of these relays which fits exactly into the slotted spaces in the Vista 20P box, and mounts perfectly. Review: Great relay for my use. - I wanted some high-amperage lights on my electric scooter lighting circuit, but the standard lighting controller could not handle the current. So I wired the relay in so that the 12V would receive power when the standard lights turned on, which would trigger the relay and activate the main lights. The relay is probably not 40 amps, but it works with the 10 amps I’m putting through it. It’s NC (normally closed) so when no power is applied, it’s closed. ## Features - Input: 12V DC (relay powered) - Control voltage: 250V Max - 30A High Current 12V Contactor relay Switch DC power Switching Control Board - 30A single channel relay of 4 terminal shunt - It can be used to cooler control ,heater control ,refit water heater control ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00MKWACVI | | Best Sellers Rank | #866,216 in Automotive ( See Top 100 in Automotive ) #291 in Automotive Replacement Relay Control Module Relays | | Brand | Yeeco | | Coil Voltage | 12 Volts | | Connector Type | Through Hole | | Contact Current Rating | 30 Amps | | Contact Material | Silver Alloy | | Contact Type | Normally Open | | Current Rating | 30 Amps | | Date First Available | August 10, 2014 | | Is Discontinued By Manufacturer | No | | Item Weight | 0.32 ounces | | Item model number | 1300199 | | Manufacturer | Yeeco | | Maximum Switching Current | 30 Amps | | Minimum Switching Voltage | 12 Volts (DC) | | Mounting Type | DIN Rail Mount | | Operation Mode | 12v,Electrical | | Product Dimensions | 7 x 5 x 0.7 inches | | Specification Met | IEC/EN 60947 | | UPC | 701203237612 070120323761 | ## Product Details - **Connector Type:** Through Hole - **Contact Material:** Silver Alloy - **Contact Type:** Normally Open - **Current Rating:** 30 Amps - **Mounting Type:** DIN Rail Mount ## Images ![Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control - Image 1](https://m.media-amazon.com/images/I/61pQwZf6H4L.jpg) ![Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control - Image 2](https://m.media-amazon.com/images/I/617oaWoQS3L.jpg) ![Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control - Image 3](https://m.media-amazon.com/images/I/61FjYBZG+HL.jpg) ![Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control - Image 4](https://m.media-amazon.com/images/I/61cliLbM8sL.jpg) ![Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control - Image 5](https://m.media-amazon.com/images/I/61rfPEo3RsL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Id like to mount this in a metal outlet box but how do i isolate the relay contacts on the back of relay from the metal outlet box?** A: First, it is good to hear that you are aware of the need. Yes, you can do it easily or more accurately. the easy way is to use 2 or 3 foam pads stacked on each other and attach to the back and then the metal box. This is a once and done method. The more service able way is to get some small 1" long bolts that will fit into the 4 holes on the corners, and bolt it to the metal box, using a piece of cardboard or stiff material to attach on the back and use 1/2" spacers or nuts to assure that the back of the PC board is above the metal back at least 3/8". **Q: Can this relay be used with a Arduino Uno or Nano?** A: Not directly. This relay requires 12v to switch. Arduino only handles 5v. You can use a transistor but the simplest solution is to find a 5v version **Q: Can you use relay be used to switch my dc power from my solar panels to ac to my water heater element** A: I believe it can. I used mine to start a sup pump in the basement in case water flooded the place. I wired to a sensor float and then to the pump. I have a 12 volt battery to provide the power for the switching. **Q: says 30A @240, so can I put 15A @110v load on this ?** A: As the electrical theory goes: Watts = Amps x Volts Examples: 10 Amps x 120 Volts = 1200 Watts 5 Amps x 240 Volts = 1200 Watts So when you do math you will find that 65.4545~ Amps x 110 Volts = 7200 Watts. Which is the same amount of Watts when you do the math 30 Amps x 240 Volts = 7200 Watts. So 15A at 110 volts would be barely using the capacity of this relay. I hope this helps you. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works fine - happy with it. Do wish the screw terminals were bigger. *by N***6 on April 1, 2023* Worked fine out of the box. Small / compact. Wish the screw terminals were bigger to support a standard lug. On this unit I had to use the smaller lugs (which I had on hand). Because i used this as an interface with my Honeywell Vista 20P, trigger 17 (Programmable Output) for my alarm siren / bell / accessories.... I needed a reply that did not have an optical sensor.... just a straight contact to the relay and low current consumption rating on the coil. The Vista 20P has limited output for trigger 17 (limit to max 100ma).... so I also removed one leg of the small led on the board to not light up. You can add a led on the output of the relay contact if you really need a led to show you when the relay is activated. This saved about 5 ma which reduced my limit on trigger 17 output. What is nice about this is the fact I did not have to spend another $100 bucks for a honeywell add-on power supply that only supported 1.5 Amps, and a honeywell relay board. By connecting the output of trigger 17 to this relay directly, then using a separate battery and power supply to support the Wiper/NO contact loads on the output side.... I am able to run up to 30 Amps if desired .... but really only using about 5 amps at this time for everything. This relay board also has a nice large value capacitor across the coil, and I recall a diode as well... This helps with any spikes from the coil and/or reverse current when the relay disengages.... the spike can effect sensitive item (chips). I had no problems with this replay on my Vista 20P board. I made a plex-glass board for 2 of these relays which fits exactly into the slotted spaces in the Vista 20P box, and mounts perfectly. ### ⭐⭐⭐⭐⭐ Great relay for my use. *by J***E on April 24, 2024* I wanted some high-amperage lights on my electric scooter lighting circuit, but the standard lighting controller could not handle the current. So I wired the relay in so that the 12V would receive power when the standard lights turned on, which would trigger the relay and activate the main lights. The relay is probably not 40 amps, but it works with the 10 amps I’m putting through it. It’s NC (normally closed) so when no power is applied, it’s closed. ### ⭐⭐⭐⭐⭐ Small, but powerful *by C***Y on June 14, 2025* Bought this to help control my camper roof ac unit. It is small in size and the connectors are a tight fit for the 14/2 wire in the camper. The controlling wires are super small, too. I am using it to cut the 110v power to the ac. In also installed a 12v thermostat that turns the relay on and off at a set temperature. It works great. I’m a happy camper. ## Frequently Bought Together - Yeeco® 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay Switches for Cooler Heater Refit Water Heater Control - Electromagnetic Power Relay, 8-Pin 10 AMP 12V DC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - MY2NJ [Applicable for DIN Rail System] - EPLZON NT90-DC12V-10X Power Relay DC 12V Coil 120 VAC 30A 40A SPDT(1NO 1NC) with Flange Mounting and 10 Quick Connect Terminals Wires Mini Relay(Pack of 2pcs) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/9391298-yeeco-30a-high-current-12v-contactor-relay-switch-power-switch](https://www.desertcart.at/products/9391298-yeeco-30a-high-current-12v-contactor-relay-switch-power-switch) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-23*