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T-Spec FDB-124M

Mini ANL fused distribution block — 1/0-gauge input, two 4- to 8-gauge outputs (fuses not included)

Item # 120FDB124M

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Discontinued item
2 questions - 8 answers

Item # 120FDB124M

Since 1974

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About the T-Spec FDB-124M

Buck Pomerantz

Distributes power safely and neatly

This compact distribution block from T-Spec will handle the high-current power distribution for your multi-amp sound system, ensuring that your wiring's connected securely, looking neat, and safely fused. The set screws for the fuses have specially-designed heads that accept many common tools, even a coin, so you will always be able to change your fuse without having to carry around a special tool. Solid black nickel-plated brass construction ensures reliable power flow, and an impact-resistant plastic cover keeps the fuses and connections clean. You'll need Allen head wrenches to install this block. (Fuses sold separately.) Warranty: 1 year.

What's in the box:

  • Distribution block for MANL fuses with one 1/0 AWG set-screw input and two 4/8 AWG set-screw outputs
  • Plastic cover (attached)
MFR #V12FDB-124M

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More details on the T-Spec FDB-124M

Mark G.
The T-Spec FDB-124M replaces these items:

Product Research


Overview: This package includes a T-Spec compact 2-position, distribution block that will accept MANL fuses (not included). The solid brass construction gives you maximum conductivity. The distribution block has a flat-black finish, and is installed inside an impact-resistant polycarbonate cover with a translucent removable cover. The cover has a small footprint, with two holes in the base for mounting with screws or wire ties.

Configuration: The distribution block has one 1/0 AWG input, and two outputs for 4 AWG or 8 AWG wires. Each output requires a MANL (mini ANL) fuse (not included).

Set Screws: The wire connections are secured with set screws. A 3mm Allen wrench is required to tighten or loosen the set screws.

Universal Screw Design: The fuses are secured to the distribution block with Universal style screws to let you change fuses fast. The Universal screws can be tightened or loosened with a flat-head screwdriver, a coin, or a 3mm Allen wrench.

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Customer Q&A

2 questions already asked

I am running 2 AWG power line. Will that fit the input on this or will it be too loose?
[ TODD  Sep 09, 2019 ]
3 answers
I think you'll be OK. If you're worried, you can try using some wire ferrules. Go to Youtube and search for "car audio fabrication wire ferrules". Crutchfield may actually stock these too. Not sure though.
[ SEAN  Sep 10, 2019 ]
I think it will work, it uses an Allen set screw in the middle and goes far down into the exposed wire
[ Derek  Sep 10, 2019 ]
yes, it fits up to a 1/O input wire. Output are 4 & 8 AWG wires
[ Miles  Sep 10, 2019 ]
Does this power distribution blocks need a fuse inside of it or would one fuse on the main input work?
[ Douglas  Dec 03, 2015 ]
5 answers
It will need two fuses if your going to use both outputs inside the distribution block.
[ GERARDO  Dec 06, 2015 ]
It did not work for my application. and yes you WILL HAVE TO PURCHASE FUSES to match your amp's specific need.
[ Preston  Dec 04, 2015 ]
This power distribution block need two (2) fuse
[ LUIS DE  Dec 04, 2015 ]
You need a fuse inside
[ EVAN  Dec 04, 2015 ]
If u don't place fuses in distribution block , u will need a jumper to complete the circuit . Fuse or jumper required in block to complete the connection.
[ ALFRED  Dec 04, 2015 ]

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