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🚛 Tow Smarter, Not Harder: The Ultimate 7-Way Relay for Next-Level Towing Confidence
The Maypole 12V 7 Way Bypass Relay with Audible Buzzer is a UK-manufactured, surface-mount automotive relay designed for trailer and caravan towing electrics. It supports 12V DC systems, handles up to 15 amps, and ensures compatibility with most vehicle types and lighting setups, including filament and LED bulbs. Featuring an internal buzzer for indicator monitoring and dual voltage circuit differentiation, it protects your vehicle’s electrical system by imposing no extra load. Ideal for professional installation, this relay enhances towing safety and reliability.
| Asin | B07YWZ7KXF |
| Best Sellers Rank | 1,861 in Automotive (See Top 100 in Automotive) 2 in Car Relays |
| Brand | Maypole |
| Coil Voltage | 12 Volts (DC) |
| Connector Type | Solder |
| Contact Material | Steel |
| Contact Type | Normally Open |
| Current Rating | 15 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (431) 4.4 out of 5 stars |
| Included Components | 1 x relay |
| Item Highlight | For Trailer and Caravan Towing Electrics |
| Item Type Name | MP3877B 12V 7 Way Bypass Relay |
| Manufacturer | Maypole |
| Manufacturer Part Number | MP3877B |
| Maximum Switching Voltage | 12 Volts (DC) |
| Minimum Switching Voltage | 12 Volts (DC) |
| Model Number | MP3877B |
| Mounting Type | Surface Mount |
| Number Of Items | 1 |
| Operation Mode | Automatic |
| Product Warranty | 12 months |
| Specification Met | CE |
| Wattage | 5 watts |
User
Arrived on time all there
Arrived on time looks right yet to fit it but so far so good
User
Perfect
Used to replace an identical unit, easy to wire, works great and when trailer not attached, doesn’t beep so no need to keep disconnecting it
User
Used for over a year and still operating perfectly
I've had this fitted for over a year now (I've only just seen it in my Amazon review pile) as I needed it for my Thule bike rack. It works well, it still works well and I'm glad I purchased it.In my particular case I modified it a little as I had to disable the buzzer as the noise was causing the dog to bark/cry every time I put the indicator on. The change I made had no effect on the functionality of the relay.
User
A Top Seller
I have fitted this to my van i havnt tried this item yet but I am sure it will work fineI am very happy with the item and good delivery
User
Maypole trailer wiring kit
It's a quality item but it doesn't come with any wiring diagrams so you need to know trailer wiring or do what most will do and look on Google
User
Did the Trick👍
Arrived in 24 hours bailing us out and allowing us to continue our holiday 350 miles from home 👍
User
Maypole
Audible indicator not working on it.
User
So easy
Worked Perfectly on a Smart 421 with a manufacturers bike rack that we purchased 2nd hand well happy
User
Brilliant device
This item is brilliant on my daughters van with the battery under the seat.Works well, and has a very good range even though its under the seat
User
Très bon produit
Très bon produit ,très facile à comprendre et à monter à acheter sans problème
User
Ottimo
Ottimo prodotto
User
Feina per instal.lar però funcionament OK
Instal.lat en un renault laguna substituint el mateix model. Porta feina la instal·lació però els llums del remolc ara van bé. A més aquest model fa uns pitidos els intermitents quant està el remolc connectat
User
Easy to install
Priceworthy
Trustpilot
1 month ago
2 months ago