PT fuse terminal blocks

Fuse terminal blocks, component terminal blocks, and diode terminal blocks

With fuse terminal blocks, you can accommodate fuses in different designs and with different nominal currents. Using multi-level versions, you can route a protected potential and an unprotected potential through just one terminal block. Versions for use in potentially explosive areas with Ex nA type of protection extend the field of application. Together with the component terminal blocks and diode terminal blocks, terminal blocks with LEDs, blocking diodes, or resistors are also available.

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PTTB 4-HESILED 24 (5X20) - Fuse modular terminal block
PTTB 4-HESILED 24 (5X20) - Fuse modular terminal block

Fuse modular terminal block, fuse type: Glass / ceramics / ..., fuse type: G / 5 x 20, nom. voltage: 24 V, nominal current: 28 A, connection method: Push-in connection, 1 level, Rated cross section: 4 mm2, cross section:  0.2 mm2- 6 mm2, connection method: Push-in connection, 2nd level, Rated cross section: 4 mm2, cross section:  0.2 mm2- 6 mm2, mounting type: NS 35/7,5, NS 35/15, color: black


  • Comprehensive product range for cartridge fuse-links, automotive flange fuses, and thermal device circuit breaker plugs
  • Easy potential distribution thanks to continuous function shafts
  • Convenient testing of fuses with test points on both sides
  • Quick identification of faulty fuses and fuse holders regardless of the current direction thanks to an LED status indicator
  • Easily accessible fuse-links are easy to replace
  • Same shape as the feed-through, knife, and disconnect terminal blocks
Fuse terminal block

Fuse terminal block


The easily accessible fuse-links are easy to install and replace. Phoenix Contact provides the following fuse terminal blocks:

  • Lever-type fuse terminal blocks
  • Fuse terminal blocks with screw cap
  • Fuse terminal blocks for accommodating flat-type fuses

The following fuse versions can be mounted on a DIN rail using fuse terminal blocks:

  • Cartridge fuses
  • Midget fuses
  • Type C and F flat-type fuses

Type 10.3 x 38 mm and 10.3 x 85 mm fuse holders and fuses specifically for use in photovoltaics systems of up to a maximum of 1,500 V are available.
Versions of these terminal blocks are available with an LED display to indicate faults.

Opened fuse plug being held with two fingers

P-FU fuse plugs

P-FU fuse plugs

Fuse plugs for G-type fuse-links from Phoenix Contact are suitable for use in basic disconnect terminal blocks and are particularly flexible:

  • Assemble the plug easily with the desired fuse type
  • Overload and short-circuit protection with a terminal block width of just 5.2 mm with the nested design
  • Test contacts on both sides of the fuse
  • Fast identification of faulty fuses, thanks to versions with bidirectional fault indicator
  • Clear assignment with a marking option
Pluggable TCP thermal device circuit breakers mounted on a DIN rail

Pluggable TCP thermal device circuit breakers

Pluggable TCP thermal device circuit breakers

Our TCP thermal device circuit breakers provide optimum protection against overload for your inductive loads in power distribution systems. The integrated switching function of the device circuit breakers allows them to be switched on again immediately, thereby minimizing downtimes in your system.

  • Suitable for all flat-type fuse terminal blocks of type C, thanks to standardized plug-in contacts
  • Shorter downtimes with immediate reset after tripping
  • Can be used as a switch to switch circuits on and off
  • Space-saving installation due to the slim design
Component terminal blocks with red LED and Push-in connection mounted on a DIN rail

Component and diode terminal blocks

Component and diode terminal blocks

You can use component and diode terminal blocks in various applications. Safety requirements are also taken into account: Printed circuit diagrams and symbols reduce the risk of faulty wiring considerably. The various electromechanical and electrical components of the terminal blocks have different uses. They are necessary for the following applications:

  • The terminal blocks with the LED component are used for visualizing operating states in a system.
  • Diode terminal blocks with blocking diodes are used to protect components against reverse currents or resistance.
  • Component terminal blocks with resistors are used for current and voltage limitation and distribution.
Efficient planning with PROJECT complete

Efficient planning with PROJECT complete

Efficient planning with PROJECT complete

Intuitive configuration, intelligent functions, and a customizable user interface: The PROJECT complete planning and marking software is the innovative solution for the easy planning of your terminal strips and the straightforward creation of the corresponding markings.

From the transfer of data from electrical planning to delivery of your finished product, the software features individual and convenient process support.

Open product brochure for terminal blocks

Terminal blocks product brochure


Would you like to get printed materials about our terminal blocks? Below you will find various brochures on the subject of terminal blocks. In addition to the product brochure, you will find a brochure about the CLIPLINE complete terminal block system and about the quality tests for the terminal blocks.