Shopping Cart

Your cart is empty.

Your cart is empty.

Joinfworld 300A Bus Bar 12V DC Waterproof Power Distribution Block with 4 x 3/8' Studs, Heavy Duty Marine Battery Bus Bar Terminal Block 12 Volt for Automotive, Car, Solar Wiring - Positive&Negative

Free shipping on orders over $29.99

$52.98

$ 26 .99 $26.99

In Stock

About this item

  • 300A Heavy Duty: The 12V Bus Bar Box Rated 300A, besides, this power bus bar Junction block can work with MAX 48V DC & 300V AC
  • Superior Quality: Our marine bus bar 12v terminal block with 5.4" x 2.7" x 1.8" outer size, it features 7mm thicker copper bus bar plate with stainless steel studs and nuts which can be connected to wider range of cables. The product contains a red positive bus and a black negative(ground) bus in pairs
  • 3/8" Studs: The Power Distribution Block Bus Bar with 4 x 3/8" (M10) stud posts, which makes the 12V terminal block be able to accept 4/0 Gauge wires and terminals
  • Waterproof: The 12V junction block box with four side removable plates. You can remove the plates or drill hole on plate to let wires and terminals go through very easy and prevent short circuit, which makes your wiring more secure and reliable
  • Application: The 300A heavy duty battery bus bar makes the wiring of circuit become neat and tidy and prevent electric short circuit, suitable for automotive, car, truck, marine, boat, RV, Solar, etc



Product Description

Bus Bar 300A 12V Power Distribution Block 3/8"(M10) 4 Studs Heavy Duty Waterproof Buss Bar 12 Volt

Product Details Display

Bus Bar 300A 12V Power Distribution Block 3/8"(M10) 4 Studs Heavy Duty Waterproof Buss Bar

300A 12V Design

The thickness and wideness of the copper contact of this battery terminal block makes it can work under 300A current, and can handle max 48v dc.

Bus Bar 300A 12V Power Distribution Block 3/8"(M10) 4 Studs Heavy Duty Waterproof Buss Bar 12 Volt

3/8" Stud Terminal

The 12v bus bar box is 4 x 3/8 studs design, which makes the battery distribution block become suitable for larger size terminal connectors and wires.

Bus Bar 300A 12V Power Distribution Block 3/8"(M10) 4 Studs Heavy Duty Waterproof Buss Bar 12 Volt

Removable Plate Design Cover

The cover of power bus bar box is removable plate design, remove the plate from cover for wiring, or keep the plate on cover to prevent short circuit.

Bus Bar 300A 12V Power Distribution Block 3/8 M10 Studs Heavy Duty Waterproof Buss Bar

Package Include

1 x Positive Power Distribution Block

1 x Ground Power Distribution Block

8 x Assembling Screws

8 x Mounting Screws

Bus Bar 300A 12V Power Distribution Block 3/8 M10 Studs Heavy Duty Waterproof Buss Bar
Bus Bar 300A 12V Power Distribution Block 3/8 M10 Studs Heavy Duty Waterproof Buss Bar

Positive Bus Bar - Red

Bus Bar 300A 12V Power Distribution Block 3/8 M10 Studs Heavy Duty Waterproof Buss Bar

Negative Bus Bar - Black

Bus Bar 300A 12V Power Distribution Block 3/8 M10 Studs Heavy Duty Waterproof Buss Bar

coffee don
2025-09-03 10:56:47
Thanks
Customer
2025-08-17 16:55:11
Big and heavy duty, easy to connect and work with. Will say was MUCH larger than I anticipated but still excellent.
Josh
2025-08-08 13:17:39
Very thick plastic and a very nice platted bar. This will hold up nicely in the back of my boat.
Kaptin
2025-07-22 15:08:06
Had a jumble of wire connected to a battery on a houseboat. Used these to clean up mess.
Ben Sharit
2025-06-25 18:41:40
Marine use very solid bus bar easy to install
Gizmo
2025-06-21 14:14:02
Works as advertised, nicely made.
Chris ortiz
2025-06-18 17:17:13
Good quality. Exactly what i was looking for
maria
2025-05-06 17:58:21
The negative had stripped screws. How to replace with new hardware.
Darragh J.
2025-05-03 18:39:50
used it on my 2009 ford ranger i swapped a 2001 vw alh tdi engine into so far its holding up to the task
Ge Las
2025-04-12 10:36:51
Funcionan muy bien están contruidos de buen Material recomendados
jerome
2025-04-02 18:18:14
Pour un système solaire ça donne un beau travail et est sécuritaire
David O
2025-02-28 18:42:01
Easily accommodated a pair of 3/0 cables in each of the openings for super duty applications. The optional side openings are handy for 90 degree wiring where space is limited. Fully enclosed case with screws limits the potential for shorting out connections by accident.
titicu
2024-11-30 14:57:45
It looks good for now
Recommended Products