Bay Marine Supply Busbar - Made in USA – 4-Post 250 Amp Stainless Steel Distribution Block - 3/8 Red
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Robert Chambliss
> 3 dayThe covers were broken in shipping, 2 units in 2 separate shipments, they appear to made of a more brittle plastic than the base. Everything else looks durable, should do what I need it to, Id give it 4.5 stars if I could.
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Ms. Verla Sanford Sr.
> 3 dayLarger than expected but seems like good quality.
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Freddie W.
Greater than one weekgood value for the price
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J.G.
> 3 dayThis worked great to get accessory wires off my battery terminal on a 89 Toyota truck.
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GFDONE
Greater than one weekThis bus bar is well built and works good. They sell some with different sized threaded studs though so make sure you buy the size you need. We used ours to make a neater 12 Volt tie in point on a ‘86 Chevy 1 ton military truck we’ve repurposed for a Fire Dept Grass/Brush truck. Needed the extra 12V power supply point for Lights, Pump starter, Siren etc. It works great and is tough. The cover is just a little thin but hasn’t broke on us yet.
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Pro Sound Tech
> 3 dayWould rather have true tinned copper materials, but for the money you cant go wrong with these. Would not use these for continuous high amps. Ok for short term high amps, like engine starting. Needs electrical lube to prevent thread galling.
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Buy allot of stuff
> 3 dayIf youre one of those people who have like 10 wires stuffed under one screw for the accessories running in your car then think about running 1 heavy duty cable to one of these bus bars then youll have a nice neat place to get your 12 volt battery power from. This is designed for the positive side or hot side and is isolated from its mounting. What I like about this product is that it has a cover so that you are less likely to touch a terminal and short out or ground unintentionally. This will be good to run some high-draw accessories but not like an automotive starter motor or something directly. Just know this is positive (or negative) only and you will need another for negative side.
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Charlevoix418
> 3 dayQuite robust, will last for ever, top quality!
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Kellie Brakus
> 3 dayThese busbar/distribution-blocks are good-quality, well-made units that suited my application perfectly. They are being used on my boat so the stainless steel metal parts are well suited to the damp environment, and the covers protect from accidental contact.
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Michael K. Lacy
> 3 dayExactly as advertised and very well made. All attachments came with it a real plus.
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| 4-Post 5/16" (250A) BusBar – Red | 4-Post 5/16" (250A) BusBar – Black | 4-Post 5/16" (250A) BusBar – Pair of Black & Red | 4-Post 3/8" (250A) BusBar – Red | 4-Post 3/8" (250A) BusBar – Black | 4-Post 3/8" (250A) BusBar – Pair of Black & Red | |
| Model | Large 4-Posts | Large 4-Posts | Large 4-Posts | Large 4-Posts | Large 4-Posts | Large 4-Posts |
| Color | Red | Black | Pair of Red & Black | Red | Black | Pair of Red & Black |
| Stud Size | Four 5/16" (M8) Studs | Four 5/16" (M8) Studs | Four 5/16" (M8) Studs | Four 3/8" (M10) Studs | Four 3/8" (M10) Studs | Four 3/8" (M10) Studs |
| Additional Connection Points | Three #8-32 Screws | Three #8-32 Screws | Three #8-32 Screws | Three #8-32 Screws | Three #8-32 Screws | Three #8-32 Screws |
| Max Amperage | 250 Amps @ 12Vdc | 250 Amps @ 12Vdc | 250 Amps @ 12Vdc | 250 Amps @ 12Vdc | 250 Amps @ 12Vdc | 250 Amps @ 12Vdc |
| Max Voltage | 48Vdc | 48Vdc | 48Vdc | 48Vdc | 48Vdc | 48Vdc |
| Dimensions | 1.775 x 6.59 x 1.385 inch (1.943 x 6.59 x 1.385 inch with cover) | 1.775 x 6.59 x 1.385 inch (1.943 x 6.59 x 1.385 inch with cover) | 1.775 x 6.59 x 1.385 inch (1.943 x 6.59 x 1.385 inch with cover) | 1.775 x 6.591 x 1.385 inch (2.056 x 6.591 x 1.385 inch with cover) | 1.775 x 6.591 x 1.385 inch (2.056 x 6.591 x 1.385 inch with cover) | 1.775 x 6.591 x 1.385 inch (2.056 x 6.591 x 1.385 inch with cover) |
| Plate & Connection Point Material | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts |
| Base Material | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon |
| UL Rating | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB |
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| Small 4-Post 3/8" (210A) BusBar – Red | Small 4-Post 5/16" (210A) BusBar – Black | Hi-Amp 3-Point (700A) BusBar – Red | Hi-Amp 3-Point (700A) BusBar – Black | 10-Point (150A) BusBar – Red | 10-Point (150A) BusBar – Black | |
| Model | Small 4-Posts | Small 4-Posts | Hi-Amp 3-Posts | Hi-Amp 3-Posts | 10-Point | 10-Point |
| Color | Red | Black | Red | Black | Red | Black |
| Stud Size | Three 3/8" (M10) & One 1/4" (M7) Studs | Three 5/16" (M8) & One 1/4" (M7) Studs | Two 5/16" (M8) & One 3/8" (M10) Studs | Two 5/16" (M8) & One 3/8" (M10) Studs | Two 1/4" (M7) Studs | Two 1/4" (M7) Studs |
| Additional Connection Points | Ten #8-32 Screws | Ten #8-32 Screws | ||||
| Max Amperage | 210 Amps @ 12Vdc | 210 Amps @ 12Vdc | 700 Amps @ 12Vdc | 700 Amps @ 12Vdc | 150 Amps @ 12Vdc | 150 Amps @ 12Vdc |
| Max Voltage | 48Vdc | 48Vdc | 48Vdc | 48Vdc | 48Vdc | 48Vdc |
| Dimensions | 1.127 x 5.234 x 1.140 inch (1.750 x 7.500 x 2.250 inch with cover) | 1.127 x 5.234 x 1.140 inch (1.750 x 7.500 x 2.250 inch with cover) | 2.870 x 4.756 x 1.875 inch (1.897 x 5.731 x 3.576 inch with cover) | 2.870 x 4.756 x 1.875 inch (1.897 x 5.731 x 3.576 inch with cover) | 1.5 x 6.005 x 1.250 inch (1.75 x 7.193 x 1.686 inch with cover) | 1.5 x 6.005 x 1.250 inch (1.75 x 7.193 x 1.686 inch with cover) |
| Plate & Connection Point Material | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts |
| Base Material | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon |
| UL Rating | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB |
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| 12-Point (240A) BusBar – Red | 12-Point (240A) BusBar – Black | 10-Point (240A) BusBar – Pair of Black & Red | Dual 4-Post 5/16" & 5/16" (250A) BusBar – Black | Dual 4-Post 5/16" & 3/8" (250A) BusBar – Black | Dual 4-Post 3/8" & 3/8" (250A) BusBar – Red | |
| Model | 12-Point | 12-Point | 12-Point | Dual 4-Posts | Dual 4-Posts | Dual 4-Posts |
| Color | Red | Black | Pair of Red & Black | Black | Black | Red |
| Stud Size | One 1/4" (M7) Stud | One 1/4" (M7) Stud | One 1/4" (M7) Stud | Four 5/16" (M8) & Four 5/16" (M8) Studs | Four 5/16" (M8) & Four 3/8" (M10) Studs | Four 3/8" (M10) & Four 3/8" (M10) Studs |
| Additional Connection Points | Twelve #8-32 Screws | Twelve #8-32 Screws | Twelve #8-32 Screws | Six #8-32 Screws | Six #8-32 Screws | Six #8-32 Screws |
| Max Amperage | 240 Amps @ 12Vdc | 240 Amps @ 12Vdc | 240 Amps @ 12Vdc | 250 Amps @ 12Vdc | 250 Amps @ 12Vdc | 250 Amps @ 12Vdc |
| Max Voltage | 48Vdc | 48Vdc | 48Vdc | 48Vdc | 48Vdc | 48Vdc |
| Dimensions | 1.095 x 5.234 x 1.140 inch (1.095 x 5.5 x 1.25 inch with cover) | 1.095 x 5.234 x 1.140 inch (1.095 x 5.5 x 1.25 inch with cover) | 1.095 x 5.234 x 1.140 inch (1.095 x 5.5 x 1.25 inch with cover) | 1.772 x 5.716 x 2.975 inch (2 x 5.366 x 3.228 inch with cover) | 1.772 x 5.716 x 2.975 inch (2 x 5.366 x 3.228 inch with cover) | 1.772 x 5.716 x 2.975 inch (2 x 5.366 x 3.228 inch with cover) |
| Plate & Connection Point Material | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts | Nickel Plated Brass Contact Plate & Stainless Steel Connection Posts |
| Base Material | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon | Glass-Filled Nylon |
| UL Rating | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB | UL 94 HB |
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Recommended Accessories
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Bay Marine Supply Electrical Grease by SanchemNO-OX-ID "A-SPECIAL" is the electrical contact grease of choice for new electrical installations and maintenance. NO-OX-ID electrical contact grease is an electrically conductive grease that keeps metals free from rust and corrosion as well as galling. It is recommended for trouble-free joint connections. |
Bay Marine Supply Insulation CapsInsulation caps are used to protect terminal connections from accidental shortages. They are available in different sizes to fit your needs. |
Bay Marine Supply Power Lugs by FTZThese power lugs are made of 99.9% copper, with a substantial tin plating to offer superior corrosion resistance. The cable size is stamped on each lug. They are premium versions of the most common lug specification. An increased in wall thickness yields greater strength and conductivity. The color bands to guide easy double crimps. With wire size and die setting stamped for corresponding battery terminal when used with FTZ Heavy Duty Crimp Tools. |
Bay Marine Supply Starter Lugs by FTZThese starter lugs are made of 99.9% copper, with a substantial tin plating. Unlike many lugs, the pad is a seamless piece for strength, conductivity, and corrosion resistance. The barrel is slightly flared and chamfered for easy wire insertion. The cable size is stamped on each lug. Available for 8 AWG to 4/0 AWG cables. |
