High-current feed-through terminal blocks

High-current feed-through terminal blocks for 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.

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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
  • Convenient block creation: Use securing pin versions to create preassembled 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
  • High level seal tightness, even with low-viscosity sealing compounds: Molded terminal blocks specially for the requirements of molded devices

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 greater flexibility with various mounting options, versatile connection technologies, and convenience functions. This choice allows you to always use the right device connection technology for your application.

High-current feed-through terminal blocks

Conductor cross-sections 4 mm² (AWG 10) to 95 mm² (AWG 3/0)
Currents Up to 232 A (IEC) / 230 A (UL B, C)
Voltages Up to 1000 V (IEC) / 600 V (UL B, C)
Connection methods Screw, spring, and T-LOX connection for various connection directions
Wall thicknesses 1 to 6 mm
Configurator for high-current feed-through terminal blocks being used on a tablet

Configurator for high-current feed-through terminal blocks

Create an individualized high-current feed-through terminal block based on standard items. Benefit from numerous customization options with respect to the block arrangement, attachment, and printing.

Configure high-current feed-through terminal blocks
Video: High-current feed-through terminal blocks with T-LOX connection technology
High-current feed-through terminal blocks with T-LOX connection technology MovingImage

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.

Device connection for high currents

Device connection for high currents

With PCB and panel feed-through terminal blocks you can connect high currents quickly, easily, and safely. Benefit from high degrees of freedom when planning and implementing connection technology through the housing panel.

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Services

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Various PCB terminal blocks, PCB connectors, and high-current feed-through terminal blocks

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.

More information on the screw connection
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.

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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.

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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.

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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.

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High-current feed-through terminal block screw attachment

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

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High-current feed-through terminal block flange fastening

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

More about the mounting methods

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

Tested quality for high-level safety

A test engineer testing a high-current feed-through terminal block
Quality tests for connectors and electronics housings
Our products are subjected to intensive quality tests in our technology laboratories, from development to series production – including fully automated inspections during production.
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Explosion protection
In the chemicals and petrochemicals industries, but also in supposedly non-critical industries, plant engineers must satisfy the requirements of explosion protection.
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Find out more about the quality standards that Phoenix Contact products must meet.
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Further information

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Device manufacturers
Benefit from Phoenix Contact device connection technology. Discover the advantages of our services and solutions for safe device connection.
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