Is the Blue Sea 7721 Mega/AMG Safety Fuse Block in stock?

Yes, the Blue Sea 7721 Mega/AMG Safety Fuse Block is currently in stock. Order now for quick processing and shipping from our warehouse.

What brand makes the Blue Sea 7721 Mega/AMG Safety Fuse Block?

The Blue Sea 7721 Mega/AMG Safety Fuse Block is manufactured by Blue Sea Systems, a trusted brand in the Electrical industry. We carry the full line of genuine Blue Sea Systems parts and accessories.

Is the Blue Sea 7721 Mega/AMG Safety Fuse Block a genuine new part?

Yes, the Blue Sea 7721 Mega/AMG Safety Fuse Block is a brand new, genuine Blue Sea Systems part manufactured in UNITED STATES.

What is the part number for the Blue Sea 7721 Mega/AMG Safety Fuse Block?

The manufacturer part number (MPN) for the Blue Sea 7721 Mega/AMG Safety Fuse Block is 7721 and the UPC code is 632085077211. Use these numbers to verify compatibility with your application before ordering.

What are the dimensions and weight of the Blue Sea 7721 Mega/AMG Safety Fuse Block?

The Blue Sea 7721 Mega/AMG Safety Fuse Block weighs 0.48 and measures 8 x 4 x 2 (L x W x H). Please verify these specifications fit your application before ordering.

How is the Blue Sea 7721 Mega/AMG Safety Fuse Block shipped?

The Blue Sea 7721 Mega/AMG Safety Fuse Block ships from our warehouse via standard shipping methods. Shipping costs are calculated at checkout based on your location and the item's weight and dimensions.

Can I return the Blue Sea 7721 Mega/AMG Safety Fuse Block if it doesn't work for me?

Yes, the Blue Sea 7721 Mega/AMG Safety Fuse Block is returnable. Please review our return policy page for the return window and conditions. Items must be in original condition with packaging.

Does the Blue Sea 7721 Mega/AMG Safety Fuse Block come with a warranty?

The Blue Sea 7721 Mega/AMG Safety Fuse Block is covered by Blue Sea Systems's manufacturer warranty against defects in materials and workmanship. See our warranty page for full details and coverage terms.

What category does the Blue Sea 7721 Mega/AMG Safety Fuse Block belong to?

The Blue Sea 7721 Mega/AMG Safety Fuse Block belongs to the Fuse Blocks & Fuses subcategory within Electrical. Browse our full selection of Fuse Blocks & Fuses products for more options.

Electrical Fuse Blocks & Fuses

Blue Sea Systems

Blue Sea 7721 Mega/AMG Safety Fuse Block

Name: Blue Sea 7721 Mega/AMG Safety Fuse Block
Brand: Blue Sea Systems
SKU: 7721
Price: 43.34 USD
Availability: InStock

In StockNewSKU: 7721

$43.34$50.99per unit

Secure Checkout

Shipping Available

Returns Available

Quick Specs

Fuse Type: MEGA/AMGType: Fuse Blocks

Description

MEGA or AMG Fuse Safety Block

Ignition protected for installation aboard gasoline or diesel powered boats
Sealed cover protects fuses from the harsh marine environment
Insulating cover satisfies ABYC/USCG insulation requirements
Cover breakouts allow wire access in any direction
300A maximum with 2/0 cable
Accepts Blue Sea Systems Square Format standard or custom label
Fuses sold separately
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Quick Specs

Fuse Type = MEGA/AMG | Type = Fuse Blocks

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Specifications

SKU	7721
UPC	632085077211
Brand	Blue Sea Systems
Category	Electrical
Country of Origin	UNITED STATES
Weight	0.48
Dimensions	8 x 4 x 2
Status	Active
Last Synced	10/4/2026, 2:03:16 AM

Compliance & Shipping

WARNINGProp 65 Notice

Warning WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Returnable

Product Literature

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Frequently Bought Together

Blue Sea 7721 Mega/AMG Safety Fuse Block

$43.34

Blue Sea 5065 Waterproof In-Line Fuse Holder ATO/ATC

$10.19

Blue Sea 5191 Terminal Fuse Block 30-300AMP

$32.29

Blue Sea 5502 Fuse Block Class T 225-400 Amp

$58.64

Total for 4 items:

$144.46

Compare Key Features

Feature	Blue Sea 7721 Mega/AMG Safety Fuse Block CURRENT	Blue Sea 5065 Waterproof In-Line Fuse Holder ATO/ATC	Blue Sea 5191 Terminal Fuse Block 30-300AMP	Blue Sea 5502 Fuse Block Class T 225-400 Amp	Blue Sea 5005 ANL 35-300AMP Fuse Block w/Cover
Price	$43.34	$10.19	$32.29	$58.64	$35.69
Brand	Blue Sea Systems	Blue Sea Systems	Blue Sea Systems	Blue Sea Systems	Blue Sea Systems
Condition	New	New	New	New	New
Availability	In Stock	In Stock	In Stock	In Stock	In Stock
Weight	0.48	0.08	0.5	1.1	0.34
Dimensions	8 x 4 x 2	4 x 2 x 1	6 x 4 x 1	9 x 8 x 3	8 x 4 x 2
SKU	7721	5065	5191	5502	5005
Country	UNITED STATES	TAIWAN	TW	UNITED STATES	CHINA
	View Item	View Item	View Item	View Item	View Item