How do the unused relay/fuse sockets stay waterproof? I only need 3 relays right now but want room for more.

All the seals for the bottom come without any holes, so there is no need to wire the terminals with short pigtails like another answer suggested. You need to actually poke a hole in them to wire it. The holes are already most of the way through, with just a little skin left at the bottom so it's sealed untill you need it. I just pushed a little dowl through the holes I wanted open for wire.

Can i use the fuses in the panel for the same circuit as the relays?

Yes. I used the fuses for the load side of the relays.

Does the kit with harness come pre wired?

Mine did not, but it came with all the clips and everything To go on the wires and then click into it. I used it for my UTV.. It is very nice. The one in the picture that you asking me about. Looks like it is pre-wired and numbered for each Relay.

Can I use one of these as a horn relay, grounding one coil through the steering column with three others supplied current from switches as usual?

A relay is nothing more than a switch with a normally open and a normally closed contact. Yes you can use a relay to energize your horn. The button in the steering column switches ground when you push it. Connect the ground potential coming from the closed horn switch to the relay on terminal 86, connect a constant 30 amp potential12V source to both 85 & 30 and connect 87 to the positive side of the horn. The horn must be grounded to function. When you push the horn button the circuit to the relay coil will close, switching it to energize the horn.

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12V Auto Waterproof Fuse Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [6 Bosch Style Relays & 10 Fuses Included] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep

12V Auto Waterproof Fuse Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [6 Bosch Style Relays & 10 Fuses Included] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep

Product ID: 576166020

Details

Connector type
Quick Connect
Contact material
Silver
Contact type
Normally
Current rating
30 Amps
Mounting type
Mounting with

⚡30A max current rating

💧IP65 waterproof rating

🔋12V DC coil voltage

¥23650

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Description

⚡ Power Up Your Ride with Confidence — Waterproof, Wired, and Ready to Roam!

PLUG AND PLAY PRECISION - Color-coded, pre-wired 12AWG and 16AWG harnesses simplify installation and maximize relay efficiency.
ALL IN ONE POWER SOLUTION - Complete kit includes 6 Bosch-style relays, 10 assorted fuses, terminals, and silicone seals for hassle-free setup.
BUILT TO BRAVE THE ELEMENTS - Durable nylon 66 housing with IP65 waterproof rating ensures reliable performance in harsh environments.
STREAMLINED CIRCUIT CONTROL - Organize and manage up to 6 independent circuits with integrated relay sockets and fuse holders.
UNIVERSAL MOUNTING FLEXIBILITY - Innovative 'Z' shaped brackets enable secure installation virtually anywhere on your vehicle or boat.

This 12V Auto Waterproof Fuse Relay Box Kit is a rugged, IP65-rated solution designed to consolidate and protect up to six independent automotive circuits. Featuring durable nylon 66 construction, six Bosch-style relays, ten assorted fuses, and pre-wired 12AWG/16AWG harnesses with color-coded labels, it offers universal mounting with 'Z' brackets for versatile installation on cars, boats, and off-road vehicles. Engineered for reliability and ease, it’s the ultimate upgrade for professionals demanding organized, waterproof, and high-current electrical control.

Specifications

ASIN	B0CDZCKBWM
Best Sellers Rank	197,237 in Automotive ( See Top 100 in Automotive ) 889 in Car Relays
Brand	ONLINE LED STORE
Coil Voltage	12 Volts (DC)
Connector Type	Quick Connect
Contact Current Rating	10 Amps
Contact Material	Silver
Contact Type	Normally Closed
Current Rating	30 Amps
Customer Reviews	4.6 4.6 out of 5 stars (267)
Manufacturer	TRUE MODS
Manufacturer Part Number	EPSPWR0314
Minimum Switching Voltage	12 Volts (DC)
Mounting Type	Mounting with Z brackets
Operation Mode	Automatic
Specification Met	IP65
UPC	810097591295
Wattage	144 watts

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¥23650

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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