does it come with any fuses?

No it does not come with any fuses.

It had 3 negative posts. i need 4. can i stack two negative connections. solar charger and dc to dc charge on one post?

If you are talking about a common ground and the bus bar is connected to ground, you can stack multiple ground connections to any of the three posts. However, I suggest you seek some advice from someone locally if you are unfamiliar with electricity and solar power, because I may not fully understand your question.

Is it compatible with 24v system?

Most likely it would be totally fine, depending on the amperage draw. Learn ohms law if you aren't familier. If you need 30 Amps of 24volt, you would use a 12 volt fuse rated for 15 Amps.

My batteries are 24V; will this work for a 24V system?

It doesn't matter, 12V and 24V are ok.

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Blue Sea Systems SafetyHub 150 Fuse Block, 10 Circuits

Product ID: 3836493

Details

Brand
Blue Sea
Item dimensions L x W x H
9 x 12 x 3
Material
Plastic
Specification Met
Ignition Coast
Voltage
12 volts

⚡10 fused circuits consolidated

🔋200A max current rating

🔧Screw termination for secure wiring

Description

⚓ Fuse your circuits, not your peace of mind!

BUILT TO LAST - Panel mount design with Coast Guard and ABYC compliance for trusted marine durability.
ALL IN ONE CONTROL - Consolidates up to 10 fused circuits, reducing wiring clutter and complexity.
STREAMLINED SAFETY - Ignition protected design ensures safe use on gasoline-powered boats.
POWERHOUSE PROTECTION - Handles up to 200A with MIDI/AMI fuses for your high-demand circuits.
VERSATILE FUSE OPTIONS - Includes both high-amp (30A-200A) and low-amp (1A-30A) fuse slots for diverse needs.

The Blue Sea Systems 7748 SafetyHub 150 is a premium ignition protected fuse block designed for marine and high-amp DC power distribution. It supports up to ten fused circuits with a combination of four high-amp MIDI/AMI fuses (30A-200A) and six low-amp ATO/ATC fuses (1A-30A). Its screw termination and panel mount design simplify installation while meeting Coast Guard and ABYC safety standards, making it the go-to solution for reliable, streamlined power management on gasoline-powered boats.

Specifications

ASIN	B0053BTSEK
Best Sellers Rank	#309,180 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #185 in Boat Interior Lights
Brand Name	Blue Sea Systems
Color	No Color
Current Rating	200 A
Customer Reviews	4.8 4.8 out of 5 stars (180)
Global Trade Identification Number	00632085077488
Included Components	SAFETY HUB FUSE BLOCK 150 RBS
Item Dimensions	9 x 12 x 3 inches
Item Highlight	Four AMI/MIDI and six ATO/ATC positions; negative bus; sealed cover; fuses sold separately
Item Type Name	SAFETY HUB FUSE BLOCK 150 RBS
Item Weight	16 ounces
Manufacturer	Blue Sea Systems
Material Type	Plastic
Model	7748
Mounting Type	Panel Mount
Number of Items	1
Part Number	7748
Specification Met	Ignition Protection, Coast Guard and Abyc Requirements
UPC	097914408992 632085077488
Unit Count	1 Count
Voltage	12 volts
Warranty Description	LIMITED WARRANTY

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TrustScore 4.5 | 7,300+ reviews

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