Ex approval

PCB terminal blocks and PCB connectors with Ex approval

The PCB terminal blocks and PCB connectors range from Phoenix Contact, with Ex approval, is specially designed for use in potentially explosive areas. The products have component approval according to the IEC/EN 60079-0 and IEC/EN 60079-7 standards, which define the requirements for devices in potentially explosive atmospheres.

The use of PCB connections in process technology places higher demands on the following properties:

Air clearances and creepage distances
Heating response
Resistance to aging
Insulation capability of insulation materials

Back to top

Always the right solutions for Ex applications

The comprehensive product range from Phoenix Contact offers you the necessary flexibility when selecting conductor connection technology:

PCB terminal blocks and PCB connectors
Pitch 5.0, 5.08, and 7.62 mm
Screw connection, push-in or spring connection
PCB terminal blocks and headers of the connectors suitable for the wave soldering process

When using PCB terminal blocks and PCB connectors with Ex approval, please observe the installation instructions. This information can be downloaded under the relevant product documentation.

To the product list

Approval:

Combustible material	Gas, vapor, liquid, dust
Type of protection	Ex e (increased safety)
Equipment group	II
Equipment category	2 GD
Equipment protection level	Gb (occasional occurrence of combustible materials)
Gas group	IIC (ignition energy < 60 μJ)
Additional condition	U (component approval, products cannot be operated alone)

Back to top

Ex i marking according to IEC/EN 60079-11

For intrinsic safety Ex i protection according to IEC/EN 60079-11, both PCB terminal blocks and PCB connectors with Ex approval and standard products can be used. The setup of intrinsically safe circuits also requires adherence to the specified air clearances and creepage distances. The connection points of these circuits must be clearly marked. Color coding is light blue.

Back to top