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WFCO Fuse Identification

RCBRCB Member Posts: 224
in Battery/Electrical & Solar
Hello, Can someone pls identify the following fuses on the pic of the fuse panel - from my 2019 T@B 400.
1. 25 amp for ‘Nucamp Monitor’
2. Two 40 amp fuses on the left side.
I was, still am, looking for the Inverter fuse - what and where ?
RCBy
400 - 2019
St Catharines, ON
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  • MuttonChopsMuttonChops Member Posts: 1,834
    edited September 6
    The two lower left 40A fuses are:
     - - Primary Power Center to Battery fuse  edit 09/06
     - - [both are] Battery Reverse Polarity fuse in parallel (are terminal wires wrong)

    The Inverter does not have a Power Center Fuse.
    Instead it uses a high current style in-line fuse which is located in/near the battery/inverter space.
    There is some variation between trailer model years on the in-line fuse location.

    '18 320 S,  pitched axle, 3020HE; PNW based
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  • qhumberdqhumberd Administrator, Moderator Posts: 645
    RCB said:
    Hello, Can someone pls identify the following fuses on the pic of the fuse panel - from my 2019 T@B 400.
    1. 25 amp for ‘Nucamp Monitor’
    2. Two 40 amp fuses on the left side.
    I was, still am, looking for the Inverter fuse - what and where ?
    RCBy
    I have the same model and year @RCB

    This is a picture of the WFCO 12 V circuits and fuses. I don't have an inverter but per the post above it does not have a fuse here.

    The others line up numbers to the fuse on its L

    7.5 (not 25) is #1 and covers the Monitor panel near door for tanks fresh, grey and black as well as the battery monitor. That is the red 7.5 amp fuse you see to the L.

    All the rest are similar to mine but you don't seem to have a circuit for the microwave (usually with frig) as you may not have a microwave. One btw is inserted upside down but that should not make a difference.  When a fuse blows a small red LED light will come on next to that fuse.

    The 40 amp orange fuses in the middle are for reverse polarity protection for the battery charging function.

    Hope this helps


    2019  T@B400 Boondock Lite "Todd"

    2016 Toyota Tundra 5.7 Crew Cab
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  • ScottGScottG Administrator Posts: 5,622
    qhumberd said:
    ...
    All the rest are similar to mine but you don't seem to have a circuit for the microwave (usually with frig) as you may not have a microwave. One btw is inserted upside down but that should not make a difference.  When a fuse blows a small red LED light will come on next to that fuse.
    ...
    Wouldn't a microwave be strictly 120V AC? Is there a 12V DC component on T@B microwaves (like there is with the Alde)? 
    2015 T@B S

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  • qhumberdqhumberd Administrator, Moderator Posts: 645
    My mistake @ScottG. I was thinking of the Norcold frig which has 12V fuse and 120 V breaker, shared with Microwave. Here is the full picture of my 2019 WFCO to clarify:

    Both my frig and microwave have dedicated plugs on a 20 amp 120 breaker. I think the frig defaults to 120V when that is available and uses 12 V at other times


    2019  T@B400 Boondock Lite "Todd"

    2016 Toyota Tundra 5.7 Crew Cab
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