TBS DCM ANL/EF3 Fuse Holder 600 A M8

The TBS DCM ANL/EF3 fuse holder, with part number 5073550, is designed to hold a high-current fuse in DC systems up to 60 V. The fuse range of 35 to 600 A covers a variety of requirements for protecting batteries, cables, and high-power DC loads.

The grid-optimized design is part of the TBS-DC Modular System. This allows the mount to be used individually or combined with compatible busbars, support points, and optional link plates to create a well-organized DC distribution system.

Advantages of the TBS ANL/EF3 Fuse Holder

• Wide protection range: Rated for fuses ranging from 35 to 600 A.
• Several types of fuses: Compatible with approved ANL, ANN, CNN, CNL, and Adler EF3 fuses.
• Modular and expandable: Common connection level for connecting to additional DC Modular components via optional link plates.
• Good conductivity: Tinned busbars made of high-purity copper ensure low-loss connections.
• Corrosion-resistant components: Bolts, washers, and nuts are made of stainless steel.
• Flexible cable routing: The transparent cover has sections that can be broken out to allow cable access from various directions.
• Service-friendly design: The cover, which locks at the top, makes it easy to access the fuse and connections.

Compatible ANL and EF3 fuses

The manufacturer approves this fuse holder for Cooper Bussmann ANL and ANN, Littelfuse CNN and CNL, and Adler EF3. The EF3 compatibility applies specifically to this ANL-M8 holder with part number 5073550.

The appropriate fuse type and rated current depend on the system voltage, the cable cross-section, the circuit to be protected, and the battery’s potential short-circuit current. Particularly with high-power lithium battery banks, the breaking capacity and protection coordination of the selected fuse must also be taken into account.

Suitable Applications

The TBS fuse holder is suitable for professionally installed 12-, 24-, and 48-V DC systems, provided that the actual operating voltage and any voltage spikes remain within the manufacturer's specifications. Typical applications include:

• Battery and Inverter Circuits in RVs and Adventure Vehicles
• DC Distribution Systems on Boats and Yachts When Installed in a Dry, Indoor Location
• Battery systems in mobile workshops, food trucks, and event vehicles
• Low-Voltage DC Distribution Systems in Off-Grid Systems and Tiny Houses
• Modular distribution panels for stationary battery storage systems up to 60 V DC

The holder alone does not determine the permissible fuse rating. The fuse rating, cable cross-section, and connected devices must all be selected together for the respective circuit.

Robust and modular design

The fiber-reinforced plastic base combines high strength with good temperature and chemical resistance. Tinned copper bus bars provide a conductive contact surface, while stainless steel components enhance the corrosion resistance of the mechanical connections.

With a 1 × 3 grid size, the mount can be arranged next to other TBS-DC Modular components to save space. Using compatible link plates (sold separately), components can be electrically connected at a common connection level. This reduces the need for additional cable connections and promotes a clean, organized system layout.

Installation Instructions

The manufacturer specifies installation on a dry interior The connecting cables must be sized for the expected current and provided with adequate strain relief to ensure that no excessive mechanical stress is exerted on the fuse holder.

• Recommended tightening torque for M8 nuts: 13 Nm
• Recommended tightening torque for M10 nuts: 22 Nm
• The spring washer and flat washer must be positioned directly under the nut.
• Do not insert any washers between the fuse, cable lug, busbar, or link plate.
• The knurled screws on the cover should be tightened by hand only.

Working on high-performance battery systems requires proper planning. Be sure to follow the current TBS manual as well as the installation guidelines provided by the battery, cable, and fuse manufacturers.

Technical Specifications

Conclusion

The TBS DCM ANL/EF3 fuse holder is a compact solution for high-power DC distribution systems up to 60 V. Its broad fuse compatibility, rugged cover, and expandability with TBS DC Modular components make it easy to set up a well-organized, service-friendly fuse protection system.

Frequently Asked Questions About the TBS ANL/EF3 Fuse Holder

• Which fuses fit in holder 5073550?

  
  

  Approved types include Cooper Bussmann ANL and ANN, Littelfuse CNN and CNL, and Adler EF3. The fuse must have a suitable M8 form factor and be rated for the specific circuit.

• Does "M8" mean that the cables are also connected to M8 bolts?

  
  

  No. In this version, "M8" refers to the fuse holder. The current TBS manual specifies M10 bolts for the cable connections.

• Can the holder be operated at over 60 V with an EF3 fuse?

  
  

  No. Even though the EF3 fuse used has a higher inherent voltage rating, the 5073550 fuse holder remains at maximum 60 V DC limited.

• Is the correct fuse included in the package?

  
  

  The fuse must be selected separately based on the application. Key factors include system voltage, wire gauge, expected operating current, potential short-circuit current, and the required breaking capacity.

• Can the fuse holder be connected to other TBS-DC Modular products?

  
  

  Yes. The 1 × 3 module size and the common connection level allow for combination with compatible DC-Modular components. To do this, use the appropriate link plates, which are sold separately.

• Can the fuse holder be installed in an open outdoor location?

  
  

  No. TBS attributes the installation to a dry interior This also applies to applications in vehicles and on boats.