How big a fuse do I need?

For heating, lighting and electronics, you want the smallest fuse that is more than 10% over the rated current of your product.   The rated current is the wattage divided by 12, in 12V systems.  So for example, if your vest is 45W, it draws 45/12 = 3.75A.  10% more than 3.75 is 1.1 * 3.75 = 4.125.  Use a 5A fuse.  If the manufacturer supplied or recommended a fuse size, do what they do.  For motorized devices, you may need to go higher to handle startup surges.  For double outlets, size to fuse to the nearest size larger than the sum of the currents of  the accessories you expect to connect.

Request Details

Session Id:xqespi45fdophm55vtqus355Request Type:GET
Time of Request:9/29/2020 3:44:17 AMStatus Code:200
Request Encoding:Unicode (UTF-8)Response Encoding:Unicode (UTF-8)

Trace Information

CategoryMessageFrom First(s)From Last(s)
aspx.pageBegin PreInit
umbracoInithandling request5.83E-050.000058
request handlercurrent url '/faq/sae-zip-on-power/how-big-a-fuse-do-i-need.aspx'0.00032840.000270
umbracoRequestHandlerxpath: '/root/*/* [@urlName = "faq"]/* [@urlName = "sae-zip-on-power"]/* [@urlName = "how-big-a-fuse-do-i-need"]'0.00046050.000132
umbracoRequestHandlerJust before xPath query (False, '/root/*/* [@urlName = "faq"]/* [@urlName = "sae-zip-on-power"]/* [@urlName = "how-big-a-fuse-do-i-need"]')0.00057050.000110
umbracoRequestHandlerpageXPathQueryStart: '/root'0.00061690.000046
umbracoRequestHandlerAdding to cache... ('/faq/sae-zip-on-power/how-big-a-fuse-do-i-need.aspx')0.00230980.001693
umbracoRequestHandlerAfter xPath query0.00237480.000065
umbracoRequestHandlerAccess checking started0.00246340.000089
umbracoRequestHandlerPage not protected0.00264740.000184
umbracoRequestHandlerAccess checking ended0.00268410.000037
umbracoInitDone handling request0.0027170.000033
umbracoPageElement loaded: questionText0.00327660.000560
umbracoPageElement loaded: bodyText0.00335850.000082
umbracoPageElement loaded: umbracoNaviHide0.00343290.000074
umbracoPagePagedata loaded for How big a fuse do I need? (ID: 1265)0.00347150.000039
aspx.pageEnd PreInit0.00480110.001330
aspx.pageBegin Init0.00486180.000061
itemStart parsing 'pageTitle'0.00519960.000338
itemDone parsing 'pageTitle'0.00528810.000089
umbracoMacroMacro loaded from cache (ID: 14, Header Images)0.00687460.001587
renderMacroRendering started (macro: Header Images, type: 1, cacheRate: 0)0.00693780.000063
umbracoMacroBefore adding extensions0.00707510.000137
umbracoXsltExtensionExtension added: urn:Exslt.ExsltCommon, ExsltCommon0.0102540.003179
umbracoXsltExtensionExtension added: urn:Exslt.ExsltDatesAndTimes, ExsltDatesAndTimes0.01033750.000084
umbracoXsltExtensionExtension added: urn:Exslt.ExsltMath, ExsltMath0.01038540.000048
umbracoXsltExtensionExtension added: urn:Exslt.ExsltRegularExpressions, ExsltRegularExpressions0.0104290.000044
umbracoXsltExtensionExtension added: urn:Exslt.ExsltStrings, ExsltStrings0.01046450.000036
umbracoXsltExtensionExtension added: urn:Exslt.ExsltSets, ExsltSets0.01049860.000034
umbracoMacroAfter adding extensions0.01053090.000032
umbracoMacroBefore performing transformation0.0106390.000108
umbracoMacroAfter performing transformation0.01143820.000799
umbracoMacroMacro loaded from cache (ID: 13, Top Navigation)0.01156880.000131
renderMacroRendering started (macro: Top Navigation, type: 1, cacheRate: 0)0.01162210.000053
umbracoMacroBefore adding extensions0.01175160.000130
umbracoXsltExtensionExtension added: urn:Exslt.ExsltCommon, ExsltCommon0.01421060.002459
umbracoXsltExtensionExtension added: urn:Exslt.ExsltDatesAndTimes, ExsltDatesAndTimes0.01428480.000074
umbracoXsltExtensionExtension added: urn:Exslt.ExsltMath, ExsltMath0.01432280.000038
umbracoXsltExtensionExtension added: urn:Exslt.ExsltRegularExpressions, ExsltRegularExpressions0.01435940.000037
umbracoXsltExtensionExtension added: urn:Exslt.ExsltStrings, ExsltStrings0.0143940.000035
umbracoXsltExtensionExtension added: urn:Exslt.ExsltSets, ExsltSets0.01443390.000040
umbracoMacroAfter adding extensions0.01446690.000033
umbracoMacroBefore performing transformation0.01454010.000073
umbracoMacroAfter performing transformation0.01747490.002935
umbracoMacroMacro loaded from cache (ID: 1, Breadcrumb Nav)0.0175890.000114
renderMacroRendering started (macro: Breadcrumb Nav, type: 1, cacheRate: 0)0.01763960.000051
umbracoMacroBefore adding extensions0.01778230.000143
umbracoXsltExtensionExtension added: urn:Exslt.ExsltCommon, ExsltCommon0.02019640.002414
umbracoXsltExtensionExtension added: urn:Exslt.ExsltDatesAndTimes, ExsltDatesAndTimes0.02027130.000075
umbracoXsltExtensionExtension added: urn:Exslt.ExsltMath, ExsltMath0.02030940.000038
umbracoXsltExtensionExtension added: urn:Exslt.ExsltRegularExpressions, ExsltRegularExpressions0.02034570.000036
umbracoXsltExtensionExtension added: urn:Exslt.ExsltStrings, ExsltStrings0.02037970.000034
umbracoXsltExtensionExtension added: urn:Exslt.ExsltSets, ExsltSets0.02041920.000040
umbracoMacroAfter adding extensions0.02045180.000033
umbracoMacroBefore performing transformation0.02068930.000238
umbracoMacroAfter performing transformation0.02146770.000778
itemStart parsing 'questionText'0.02156960.000102
itemDone parsing 'questionText'0.02168470.000115
itemStart parsing 'bodyText'0.02175150.000067
itemDone parsing 'bodyText'0.02183210.000081
aspx.pageEnd Init0.02195810.000126
aspx.pageBegin InitComplete0.02199450.000036
aspx.pageEnd InitComplete0.02202860.000034
aspx.pageBegin PreLoad0.0220610.000032
aspx.pageEnd PreLoad0.02209990.000039
aspx.pageBegin Load0.02213370.000034
aspx.pageEnd Load0.02222520.000092
aspx.pageBegin LoadComplete0.02226230.000037
aspx.pageEnd LoadComplete0.02229570.000033
aspx.pageBegin PreRender0.02232760.000032
aspx.pageEnd PreRender0.02250310.000176
aspx.pageBegin PreRenderComplete0.02254180.000039
aspx.pageEnd PreRenderComplete0.02257550.000034
aspx.pageBegin SaveState0.02505740.002482
aspx.pageEnd SaveState0.02529440.000237
aspx.pageBegin SaveStateComplete0.02533680.000042
aspx.pageEnd SaveStateComplete0.02537260.000036
aspx.pageBegin Render0.02540540.000033
aspx.pageEnd Render0.02862640.003221

Control Tree

Control UniqueIDTypeRender Size Bytes (including children)ViewState Size Bytes (excluding children)ControlState Size Bytes (excluding children)
__PageASP.default_aspx817100
    ctl00ASP.masterpages_faqquestion_master000
        ctl00$ctl00ASP.masterpages_runwaymaster_master000
            ctl00$ctl00$ctl00ASP.umbraco_masterpages_default_master000
                ctl00$ctl00$ctl00$ContentPlaceHolderDefaultSystem.Web.UI.WebControls.ContentPlaceHolder000
                    ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl17System.Web.UI.LiteralControl000
                    ctl00$ctl00$ctl00$ContentPlaceHolderDefault$headSystem.Web.UI.HtmlControls.HtmlHead000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl00System.Web.UI.HtmlControls.HtmlTitle000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl01umbraco.presentation.templateControls.Item000
                                ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl01$ctl00System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl02System.Web.UI.HtmlControls.HtmlMeta000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl03System.Web.UI.HtmlControls.HtmlMeta000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl04System.Web.UI.HtmlControls.HtmlMeta000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl05System.Web.UI.HtmlControls.HtmlMeta000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl06System.Web.UI.HtmlControls.HtmlMeta000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl07System.Web.UI.HtmlControls.HtmlMeta000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl08System.Web.UI.HtmlControls.HtmlLink000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl09System.Web.UI.HtmlControls.HtmlLink000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl18System.Web.UI.ResourceBasedLiteralControl000
                    ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl19System.Web.UI.LiteralControl000
                    aspnetFormSystem.Web.UI.HtmlControls.HtmlForm000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl20System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl10System.Web.UI.WebControls.LoginStatus000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl10$ctl00System.Web.UI.WebControls.LinkButton000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl10$ctl01System.Web.UI.WebControls.ImageButton000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl10$ctl02System.Web.UI.WebControls.LinkButton000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl10$ctl03System.Web.UI.WebControls.ImageButton000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl21System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl11umbraco.presentation.templateControls.Macro000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl12System.Web.UI.WebControls.PlaceHolder000
                                ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl22System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl23System.Web.UI.ResourceBasedLiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl13umbraco.presentation.templateControls.Macro000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl14System.Web.UI.WebControls.PlaceHolder000
                                ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl24System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl25System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl15umbraco.presentation.templateControls.Macro000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl16System.Web.UI.WebControls.PlaceHolder000
                                ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl26System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl27System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolderSystem.Web.UI.WebControls.ContentPlaceHolder000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolder$ctl02System.Web.UI.LiteralControl000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolder$ctl00umbraco.presentation.templateControls.Item000
                                ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolder$ctl00$ctl00System.Web.UI.LiteralControl000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolder$ctl03System.Web.UI.LiteralControl000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolder$ctl01umbraco.presentation.templateControls.Item000
                                ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolder$ctl01$ctl00System.Web.UI.LiteralControl000
                            ctl00$ctl00$ctl00$ContentPlaceHolderDefault$RunwayMasterContentPlaceHolder$ctl04System.Web.UI.LiteralControl000
                        ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl28System.Web.UI.ResourceBasedLiteralControl000
                    ctl00$ctl00$ctl00$ContentPlaceHolderDefault$ctl29System.Web.UI.ResourceBasedLiteralControl000

Session State

Session KeyTypeValue

Application State

Application KeyTypeValue
vnc38ykjnkjdnk2jt98ygkxjngSystem.DateTime9/29/2020 3:06:14 AM
umbracoUrlSystem.Stringwww.manicsalamander.com:80/umbraco
umbracoNeedConfigurationSystem.BooleanFalse

Request Cookies Collection

NameValueSize

Response Cookies Collection

NameValueSize

Headers Collection

NameValue
ConnectionKeep-Alive
Accepttext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encodingbr,gzip
Accept-Languageen-US,en;q=0.5
Hostwww.manicsalamander.com
If-Modified-SinceThu, 09 Jul 2020 23:13:27 GMT
User-AgentCCBot/2.0 (https://commoncrawl.org/faq/)

Response Headers Collection

NameValue
X-AspNet-Version2.0.50727
Cache-Controlprivate
Content-Typetext/html

Form Collection

NameValue

Querystring Collection

NameValue

Server Variables

NameValue
ALL_HTTPHTTP_CONNECTION:Keep-Alive HTTP_ACCEPT:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 HTTP_ACCEPT_ENCODING:br,gzip HTTP_ACCEPT_LANGUAGE:en-US,en;q=0.5 HTTP_HOST:www.manicsalamander.com HTTP_IF_MODIFIED_SINCE:Thu, 09 Jul 2020 23:13:27 GMT HTTP_USER_AGENT:CCBot/2.0 (https://commoncrawl.org/faq/)
ALL_RAWConnection: Keep-Alive Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: br,gzip Accept-Language: en-US,en;q=0.5 Host: www.manicsalamander.com If-Modified-Since: Thu, 09 Jul 2020 23:13:27 GMT User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)
APPL_MD_PATH/LM/W3SVC/366/ROOT
APPL_PHYSICAL_PATHC:\HostingSpaces\manicsal\manicsalamander.com\wwwroot\
AUTH_TYPE 
AUTH_USER 
AUTH_PASSWORD 
LOGON_USER 
REMOTE_USER 
CERT_COOKIE 
CERT_FLAGS 
CERT_ISSUER 
CERT_KEYSIZE 
CERT_SECRETKEYSIZE 
CERT_SERIALNUMBER 
CERT_SERVER_ISSUER 
CERT_SERVER_SUBJECT 
CERT_SUBJECT 
CONTENT_LENGTH0
CONTENT_TYPE 
GATEWAY_INTERFACECGI/1.1
HTTPSoff
HTTPS_KEYSIZE 
HTTPS_SECRETKEYSIZE 
HTTPS_SERVER_ISSUER 
HTTPS_SERVER_SUBJECT 
INSTANCE_ID366
INSTANCE_META_PATH/LM/W3SVC/366
LOCAL_ADDR64.27.51.218
PATH_INFO/default.aspx
PATH_TRANSLATEDC:\HostingSpaces\manicsal\manicsalamander.com\wwwroot\default.aspx
QUERY_STRING 
REMOTE_ADDR3.235.137.159
REMOTE_HOST3.235.137.159
REMOTE_PORT57738
REQUEST_METHODGET
SCRIPT_NAME/default.aspx
SERVER_NAMEwww.manicsalamander.com
SERVER_PORT80
SERVER_PORT_SECURE0
SERVER_PROTOCOLHTTP/1.1
SERVER_SOFTWAREMicrosoft-IIS/7.5
URL/default.aspx
HTTP_CONNECTIONKeep-Alive
HTTP_ACCEPTtext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_ACCEPT_ENCODINGbr,gzip
HTTP_ACCEPT_LANGUAGEen-US,en;q=0.5
HTTP_HOSTwww.manicsalamander.com
HTTP_IF_MODIFIED_SINCEThu, 09 Jul 2020 23:13:27 GMT
HTTP_USER_AGENTCCBot/2.0 (https://commoncrawl.org/faq/)

Microsoft .NET Framework Version:2.0.50727.8806; ASP.NET Version:2.0.50727.8762