Phoenix Contact 3031225 2-Conductor Terminal Block, Blue

The Phoenix Contact 3031225 is a professional-grade 2-conductor feed-through terminal block engineered for secure and efficient electrical connectivity in demanding environments. Designed with a compact footprint and a distinct blue housing, this component facilitates organized wiring in industrial control cabinets and automation systems. It utilizes a reliable spring-cage connection method, ensuring vibration-resistant contact for conductors ranging from 0.08 mm² to 4 mm².

Advantages

This terminal block offers significant space-saving benefits due to its compact design and front-entry connection, which simplifies wiring in confined spaces. The integrated double function shaft allows for efficient potential distribution and the easy attachment of testing accessories, streamlining maintenance and installation processes. Furthermore, the generous wiring space accommodates conductors equipped with ferrules and plastic collars, ensuring compatibility with standard industrial wiring practices. The unit is also rigorously tested for railway applications, confirming its durability and reliability under challenging operational conditions.

Suitable for

• Industrial control cabinets
• Automation and process control systems
• Railway and transportation infrastructure
• General electrical distribution panels

When it may not be suitable

This terminal block is not intended for use with high-power applications exceeding the 24 A nominal current rating or voltages above 800 V. It is also not suitable for environments requiring specialized hazardous area protection unless installed within an appropriately certified enclosure.

Key specifications

• Connection method: Spring-cage connection
• Number of connections: 2
• Nominal voltage: 800 V
• Nominal current: 24 A
• Cross-section range: 0.08 mm² to 4 mm² (AWG 28 - 12)
• Width: 5.2 mm
• Mounting type: NS 35/7.5, NS 35/15 DIN rails
• Color: Blue

How to use

To install the terminal block, snap it onto a standard NS 35/7.5 or NS 35/15 DIN rail. Insert a stripped conductor into the spring-cage terminal point; the spring mechanism automatically secures the wire, providing a gas-tight connection without the need for manual screw tightening. For potential distribution, insert bridging components into the double function shaft. Testing can be performed by inserting standard test plugs into the same shaft.

What to consider before purchase

• Ensure the DIN rail type matches the mounting requirements (NS 35/7.5 or NS 35/15).
• Verify that the wire gauge (0.08–4 mm²) is compatible with your specific application.
• Confirm that the electrical load does not exceed the 24 A and 800 V limits.
• Check if additional accessories like end clamps or marking labels are required for your assembly.

Usage recommendations

Always ensure that the power supply is disconnected before performing any wiring or maintenance tasks. Use appropriate wire stripping tools to avoid damaging the conductor strands, and ensure that ferrules are properly crimped when used to maintain the integrity of the spring-cage connection.