Does this item come with the fuse terminal included? If so, how do I specify the amperage

I just ordered three of these - they each came with a 300A fuse. I was not expecting fuses to be included, so I had ordered them separately. If this is not a shipping/packaging mistake, it would be nice if the seller gave the option to choose a fuse size. While I can use a 300A on one of the terminals, I needed smaller ones for the others. I didn't buy them weeks ago because of the relatively high price of these fuses (typically ~$15 each). They were on sale for $10, so I got them now.

I have a new 100ah 12v lifepo battery. what fuse size do i need to go with this?

At solavanbuild, I use 150 amp fuses with 1/0 AWG battery cables in most of my installs.

I'm thinking of running a charge/power wire of the alternator to a trailer battery. Would it be OK to use this off the charge lead on the alternator?

I would recommend an automatic Charing Relay ACR. Blue sea makes great ones. I use their Mini-ACR because my boat alternator is less than 65A. Their standard handles up to 300A. Remember regardless, you will need TWO of these fuses, one at each battery. If your alternator puts out 60A then 75A fuses, if it puts out 100A than 130-150A fuses.

Can I use this as a bus bar (without a fuse), just to extend a 5/16 battery terminal. Thank you

No you can't.. The stud is insulated from the block.. And don't grind it down. As they are meant for fuses to complete the circuit. Just buy a battery post if you need that...

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Blue Sea Systems MRBF Terminal Fuse Blocks

Product ID: 269370263

Details

Connector type
Screw
Current rating
300 Amps
Gauge
1.0
Item pitch
8 Millimeters
Number of contacts
10

⚡300A high current rating

🔩Stackable M8 stud design

🛡️Weatherproof for harsh marine environments

NZ$101

Duties & taxes included

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Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Stack, protect, and power your marine setup like a pro!

SHORT CIRCUIT SAFETY - Insulating cap prevents accidental shorts, keeping your system secure
SPACE SMART STACKING - Innovative isolated stud allows terminal stacking with standard M8 hardware
POWERHOUSE PROTECTION - Handles up to 300 amps for your toughest DC circuits
MARINE GRADE DURABILITY - Weatherproof design built to withstand open-cockpit boat conditions
VERSATILE COMPATIBILITY - Perfect for DC main, inverter, windlass, and bow thruster circuits

Blue Sea Systems MRBF Terminal Fuse Blocks deliver robust 300A fuse protection in a compact, weatherproof design. Featuring an isolated M8 stud for easy terminal stacking and an insulating cap to prevent shorts, these fuse blocks are engineered for demanding marine applications including DC main, inverter, windlass, and bow thruster circuits.

Specifications

ASIN	B0019ZBTV4
Best Sellers Rank	#60,627 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #125 in Fuses & Holders
Brand Name	Blue Sea Systems
Centerline Length	2.4 Inches
Color	Single Fuse
Connector Type	Screw
Country Of Origin	USA
Current Rating	300 Amps
Customer Reviews	4.6 4.6 out of 5 stars (970)
Gauge	1.0
Global Trade Identification Number	00632085051914
Item Dimensions W x H	6.4W x 5.1H centimeters
Item Weight	73 g
Manufacturer	Blue Sea Systems
Material Type	Plastic
Model	5191-BSS
Mounting Type	Panel Mount
Number Of Contacts	10
Number Of Poles	1
Number of Items	1
Number of Packs	1
Number of Positions	1
Part Number	5191-BSS
Pitch	8 Millimeters
Specification Met	Sea
Temperature Range	-2E+1 Degrees Celsius
UPC	632085051914
Unit Count	1 Count
Upper Temperature Rating	85 Degrees Celsius
Voltage	58 Volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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NZ$101

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered 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 New Zealand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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