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Articles - Circuit Protection
-Article Category-
AC Circuits
AC Source Selection and Power Distribtion
Automatic Charging Relays
Battery Switching
Busbars
Charging and Charge Management
Circuit Protection
DC and AC Circuit Wiring
DC Power Distribution
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Fuse/Circuit Breaker Speed Explained
Speed Delay Opening speed, or delay, defines the relationship between the percentage by which the fuse or circuit breaker is operating over ...
October 17, 2012
Independent Sourced Circuit ST Blade Fuse Block
The Independent Sourced Circuit ST Blade Fuse Block from Blue Sea Systems consolidates up to six independently-sourced branch circuits in on...
November 11, 2011
ELCI False Trips
The ABYC requirement for ELCI circuit breakers on all new boats with AC power has recently passed its first anniversary. Many units have bee...
October 13, 2011
285-Series Circuit Breaker Replaces Popular 185-Series Breaker at a Lower Price
The 285-Series Thermal Circuit Breaker is a direct drop-in replacement for the established 185-Series Thermal Circuit Breaker. The 285-Seri...
February 17, 2011
Blue Sea Systems Offers Solutions for Mounting ELCI Breakers to Comply With ABYC July 2010 Requirements
In response to a 2008 Coast Guard sponsored study entitled In-Water Shock Hazard Mitigation Strategy, ABYC standards now require boatbuilder...
February 17, 2011
The Safety Fuse Blocks (AMI®/MIDI® and MEGA®/AMG®)
The Safety Fuse Blocks from Blue Sea Systems are ignition and ingress protected and provide in-line fusing for a single circuit.The Safety F...
November 11, 2010
The SafetyHub 150 Fuse Block
The SafetyHub 150 Fuse Block from Blue Sea Systems provides fusing for ten circuits, and is the marine market's first ten-circuit 1A–2...
September 24, 2010
Broad Range of Fuses and Fuse Blocks From Blue Sea Systems
Blue Sea Systems is expanding its circuit protection offering, adding a broad range of low amperage fuses to complement the existing line of...
August 31, 2010
Part 2: Select a Fuse and Fuse Holder For Your DC Product Installation
This is the second in a two part series of technical briefs on circuit protection. Part 1 showed how to choose the correct wire size for DC ...
August 31, 2010
SMS: Surface Mount System
Since July 2010, ABYC standards require all new boats with a shore power connection to include ELCI whole-boat protection to guard against e...
August 01, 2010
Part 1: Choosing the Correct Wire Size for a DC Circuit
iOS Android Web Circuit Wizard Select the correct wire size, circuit breaker or f...
May 19, 2010
The SafetyHub 100 Fuse Block
The SafetyHub 100 consolidates and ignition protects seven 1A–200A circuitsThe SafetyHub 100 was developed in response to OEM, install...
March 25, 2010
Do You Have The Ignition Protection You Need on Your Boat?
Keeping sparks and flammable vapors apart is vital on a boat, and many boaters fail to consider all the hazards. Careless gasoline storage, ...
March 25, 2010
Mounting Options for ELCI/GFCI Circuit Breakers
Blue Sea Systems is pleased to offer ABYC–compliant single–pole 5mA branch GFCI and double–pole 30mA main ELCI circuit pro...
March 17, 2010
Two Below Deck Panels—Traditional Metal and 360 Panel System
Blue Sea Systems offers two choices for below deck electrical distribution panels—Traditional Metal and 360 Panel SystemBlue Sea Sys...
November 12, 2009
The SafetyHub 250 Fuse Block with Remote Battery Switch
A consolidated electrical system for a single battery boat. The SafetyHub 250 Fuse Block with Remote Battery Switch is an ignition protected...
October 23, 2009
MIDI®/AMI® Fuses
When evaluating available fuses for the SafetyHub family of products, Blue Sea Systems engineers discovered the compact and versatile MIDI&r...
September 28, 2009
24 Hour Circuit Solutions
With the growing demand for 24-hour circuits—such as for bilge pumps, alarms, clocks, and control circuits for remote battery switches...
April 18, 2008
ST (Screw Terminal) Blade Fuse Block - Features and Applications
Blue Sea Systems' ST Blade Fuse Block continues to be a best seller for good reasons. The features that it offers, and its low price per ci...
August 20, 2007
Fusing the Negative Circuit of ACRs and Other Electric Relays
Problem. Electric switches such as automatic charging relays (ACRs), battery combiners, load shedding devices, and zero-drop isolators a...
March 15, 2007
Windlass and Bow Thruster Relay Contact Chatter
Problem The relay contacts in windlasses and bow thrusters may chatter when they are switched ON and when they are switched OFF. This contac...
December 18, 2006
Flat Actuator Circuit Breaker Designs Provide Protection From Accidental Switching
Toggle actuated and raised rocker circuit breakers can be accidentally switched. While this could be only a nuisance in some situations, it ...
June 23, 2006
Choosing Circuit Protection
Blue Sea Systems' engineers identify new factors to consider when selecting high amperage circuit protection. Circuit protection devices are...
May 23, 2006
WeatherDeck™ Water Resistant Circuit Breaker Panels
WeatherDeck™ Water Resistant Circuit Breaker Panels are versatile enough to meet the needs of most boaters. They are available in four...
February 15, 2006
DC Circuit Protection
Electrical shorts are the number one cause of fires on boats. In fact, more than half of boat fires are electrical in origin. More than half...
December 23, 2005
DC Main Overcurrent Protection Requirements
ABYC standard E11.12.1.1.1 states that each ungrounded conductor connected to a battery charger, alternator, or other charging source, shall...
December 30, 2003
ST (Screw Terminal) Blade Fuse Block
The ST (Screw Terminal) Blade Fuse Block was designed with screw terminals to comply with ABYC Recommended Practices and built with tin plat...
December 30, 2003