High-current feed-through terminal blocks

High-current feed-through terminal blocks: High currents through the housing wall

Panel feed-through terminal blocks from Phoenix Contact feed high currents and voltages through thicknesses from 1 mm to 6 mm. With different connection methods, they offer supreme flexibility for conductor connection. For any mounting position, the panel feed-through terminal blocks provide the right solution for reliable connection technology and simple installation.

More information

Your advantages

  • Easy mounting: The outer and inner part of the terminal blocks are latched together through the housing panel without tools
  • Easy marking: The marking groove integrated into the housing simplifies installation and maintenance
  • Create blocks conveniently: Use securing pin versions to create pre-assembled blocks from single-position panel feed-through terminal blocks
  • Screw or flange attachments: Greater flexibility with alternative attachment options in the device interior or exterior, for applications with higher mechanical loads
  • Maximum tightness of seal, even with low-viscosity sealing compounds: Molded terminal blocks specially for the requirements of molded devices
  • Higher voltage ratings: Distance plates ensure increased insulation distances between neighboring positions
  • Fast conductor connection: Connect conductors of up to 95 mm² (AWG 3/0) with the T-LOX knee-lever connection technology
High-current feed-through terminal block with T-LOX knee-lever connection technology

Overview of main features

Transmit high currents safely and reliably through the panel with UL-approved panel feed-through terminal blocks from Phoenix Contact. As a device manufacturer, you will benefit from increased flexibility thanks to various mounting options, versatile connection technologies, and convenience functions. This choice allows you to always use the right device connection technology for your application.

  • For conductor cross-sections from 4 mm² (AWG 10) to 95 mm² (AWG 3/0)
  • For currents up to 232 A (IEC) / 230 A (UL B, C)
  • For voltages up to 1,000 V (IEC)/600 V (UL B, C)
  • With screw, spring-force, and T-LOX connection for various connection directions
  • For panel thickness from 1 to 6 mm
  • Fastening with snap-in locking without tools
Representation of multiple high-current feed-through terminal blocks

High-current feed-through terminal blocks for high currents through the housing wall

Configurator for high-current feed-through terminal blocks

Configure your tailored high-current feed-through terminal block to reliably transmit high currents through the panel wall to your application. Benefit from numerous options for customization for block formation, fastening, and printing.

Connectors and electronics housings

New products for device connection technology Reliable connection in the device

As a leading manufacturer of connectors and electronics housings, Phoenix Contact is always working to find new solutions for the growing requirements placed on your industrial and infrastructure applications.

Discover our new device connection technology for the transmission of signals, data, and power as well as our versatile electronics housings.

E-paper
The entire portfolio at a glance
Get an overview of the COMBICON product range. Find out how you can find the right connection technology to transmit signals, data, or power for your application.
Open the e-paper
PCB assembled with different PCB terminal blocks and PCB connectors

Various connection technologies for panel feed-throughs

Our product range of high-current feed-through terminal blocks features a unique variety of connection possibilities, such as the globally established screw connection or innovative fast-connection technology. The choice is entirely yours.

Example illustration of a screw connection with tension sleeve
Example illustration of a Push-in spring connection
Example figure of a Push-Lock connection
Example figure of a T-LOX connection
Example illustration of a screw connection with tension sleeve

Connect industrial applications with high contact reliability requirements using the world’s most frequently used connection method worldwide – screw connections with tension sleeve. Very high contact force per contact surface can be achieved with the screw connection, irrespective of the conductor cross-section.

Example illustration of a Push-in spring connection

With Push-in spring connections for direct conductor connection, rigid conductors or conductors equipped with ferrules are contacted directly and without tools at the conductor connection point. The special spring profile of the Push-in connection allows the easy insertion of conductors with ferrules of 0.34 mm² and higher.

Example figure of a Push-Lock connection

The push-lock spring enables easy and tool-free connection of solid and flexible conductors with and without ferrules. Simply insert the conductor into the open terminal point and connect it by actuating the tilting lever via the push-lock spring. Alternatively, the conductor can also be inserted into the closed terminal point using push-in technology.

Example figure of a T-LOX connection

The T-LOX fast connection allows you to connect large conductor cross sections with ease. Their operating principle is based on a spring that generates a programmed contact force. The conductors can be swiveled conveniently into the terminal point.

Video on the high-current feed-through terminal blocks with T-LOX connection technology
High-current feed-through terminal blocks with T-LOX connection technology YouTube

High-current feed-through terminal blocks with T‑LOX connection technology

Gain an overview of the TW 50 and TW 95 series panel feed-through terminal blocks. T-LOX connection technology enables reliable and convenient conductor connections for conductor cross-sections of 25 to 95 mm².

Easy mounting on the device panel

The mounting type determines the stability of a panel feed-through terminal block. For secure mounting, the panel feed-through terminal blocks are latched into the panel cutout without tools. In the case of high mechanical stresses, there is the option of also attaching the terminal blocks of the UW and PW series, depending on the device design.

Latching a high-current feed-through terminal block through the panel
High-current feed-through terminal block screw attachment
High-current feed-through terminal block flange fastening
Latching a high-current feed-through terminal block through the panel

Terminal blocks consist of an external and internal element. They pass through the housing panel and snap together easily without the need for tools. The precise engagement mechanism ensures a tight fit, however thick the panel.

High-current feed-through terminal block screw attachment

For applications involving increased mechanical stress, screw fastenings are available for the inside of the device.

High-current feed-through terminal block flange fastening

For applications involving increased mechanical stress, flange fastenings are available for the outside of the device.

Ideal for numerous applications High-current feed-through terminal blocks enable you to create space-saving solutions, for example in the following applications:

Power supplies
Frequency converters
Mains filter
Drive systems
Solar inverters

At home in numerous industries

High-current feed-through terminal blocks are used in numerous sectors and industries. These include:

  • Industrial automation
  • Renewable energy
  • Process automation
  • Machine building
Engineer examining product sample

Product certifications and approvals

Phoenix Contact develops and tests every product in accordance with the applicable standards, directives, and laws. Learn about product-related certifications and approvals upon which our creative and entrepreneurial processes are based.