Blue Sea Systems AMG® Safety Fuse Block: Blue Sea Systems 7721 MEGA/AMG safety fuse block, an image from Current Connected's listing for this one part (SKU 7721-BSS). Credit: Current Connected, an approved partner store. Front view with its clear cover closed, no fuse shown, trimmed of white margin.

1 photo · Image from currentconnected.com

Photo sources

Manufacturer and seller images. Configuration examples may include additional equipment.

Image source: Blue Sea Systems 7721 MEGA/AMG safety fuse block, an image from Current Connected's listing for this one part (SKU 7721-BSS). Credit: Current Connected, an approved partner store. Front view with its clear cover closed, no fuse shown, trimmed of white margin. Paid link.

Blue Sea Systems AMG® Safety Fuse Block

Name: Blue Sea Systems AMG® Safety Fuse Block
Brand: Blue Sea Systems
SKU: 7721

By Blue Sea SystemsSKU 7721

Fuses

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Current rating300 A Voltage rating32 V AC / DC ratingDC (32V DC maximum)Interrupt ratingNot stated Fuse classAccepts AMG fuses DimensionsNot stated

Key specs

Units

SKU: 7721
Source product page
Sources
Blue Sea Systems prints the part number 7721 under the product heading on its own page (Internet Archive copy of January 16, 2026). The Current Connected store sells it as 7721-BSS; Blue Sea does not print that store code.
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Product heading
Documented
Weight: 0.07 kg0.15 lb converted
Source product page
Sources
Printed as "Weight 0.15lb (0.07 kg)"; the kilogram figure is Blue Sea's own.
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Weight row
Documented
Fuse class: Accepts AMG fuses
Source product page
Sources
Printed as the heading "AMG® Safety Fuse Block" with "Any AMG Fuses" under Optional Accessories; "Fuses sold separately".
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Heading and Optional Accessories
Documented
AC / DC rating: DC (32V DC maximum)
Source product page
Sources
Printed as "Maximum Voltage 32V DC". No AC rating is printed.
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Maximum Voltage row
Documented
Current rating: 300 A
Source product page
Sources
Printed as "Maximum Amperage 300A" on Blue Sea Systems' 7721 page (Internet Archive copy of January 16, 2026); the feature list prints "300A maximum with 4/0 cable".
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Maximum Amperage row
Documented
Voltage rating: 32 V
Source product page
Sources
Printed as "Maximum Voltage 32V DC".
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Maximum Voltage row
Documented

All specs5

Weight: 0.07 kg0.15 lb converted
Source product page
Sources
Printed as "Weight 0.15lb (0.07 kg)"; the kilogram figure is Blue Sea's own.
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Weight row
Documented
Fuse class: Accepts AMG fuses
Source product page
Sources
Printed as the heading "AMG® Safety Fuse Block" with "Any AMG Fuses" under Optional Accessories; "Fuses sold separately".
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Heading and Optional Accessories
Documented
AC / DC rating: DC (32V DC maximum)
Source product page
Sources
Printed as "Maximum Voltage 32V DC". No AC rating is printed.
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Maximum Voltage row
Documented
Current rating: 300 A
Source product page
Sources
Printed as "Maximum Amperage 300A" on Blue Sea Systems' 7721 page (Internet Archive copy of January 16, 2026); the feature list prints "300A maximum with 4/0 cable".
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Maximum Amperage row
Documented
Voltage rating: 32 V
Source product page
Sources
Printed as "Maximum Voltage 32V DC".
Source product page: Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026 Checked Sep 30, 2026 · Earlier document
Location: Specifications table, Maximum Voltage row
Documented

Published claims and calculations, not independent test results.

Documents

1 on file

WEB
Wayback Machine copy of https://www.bluesea.com/products/7721, snapshot January 16, 2026Blue Sea SystemsSource product page
Source details
Revision
Not stated
Revision date
Not stated
Archived copy of https://www.bluesea.com/products/7721, Wayback Machine snapshot 20260116214325 (January 16, 2026), 33087 bytes.
Location: Product heading, feature list, Specifications table
Retrieved Sep 30, 2026
Blue Sea Systems' own product page as archived by the Internet Archive at snapshot 20260116214325 (January 16, 2026); it shows what the page printed on that date. The live site answers automated requests with a challenge page, so it was not read.
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