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Phoenix Contact Terminal Block - PTT 2.5-2MT, Grey, 2.5mm², 2-Level, Push In Termination

Not AvailablePhoenix Contact Terminal Block - PTT 2.5-2MT, Grey, 2.5mm², 2-Level, Push In Termination
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This push-in knife disconnect terminal block from Phoenix Contact is designed for DIN rail mountin...

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Product Information

Full details

This Phoenix Contact PTT 2.5-2MT terminal block is ideal for electrical engineers and technicians working with control cabinets and DIN rail installations who need a reliable, high-density connection solution. Its key benefit is the tool-free push-in termination, significantly speeding up wiring. A potential caveat is its specific compatibility with certain DIN rail types and the need for a closing plate for proper insulation.

All features

Model Part Number3210258
BrandPhoenix Contact

Extended Product Information

FAQs

What is the maximum current and voltage rating for this terminal block?

The Phoenix Contact PTT 2.5-2MT terminal block has a rated voltage of 400V and a current rating of 16A.

Do I need any tools to wire this terminal block?

No, the push-in termination system allows for tool-free conductor insertion. A closing plate, however, needs to be snapped into place.

What types of conductors can be used with the PTT 2.5-2MT?

It accommodates solid and stranded conductors ranging from 0.14 mm² to 4 mm² (26-12 AWG). Using ferrules with stranded wire is recommended for optimal performance.

Which DIN rail sizes are compatible?

This terminal block is designed for mounting on standard NS 35/7.5 and NS 35/15 DIN rail types.

Is a closing plate included with the terminal block?

No, a closing plate is required for proper insulation and is sold separately. It is necessary to complete the terminal block assembly.

What is the inflambility class of the insulation material?

The insulation material has an inflambility class of V0 according to UL94 standards.

What are the physical dimensions of the terminal block?

The terminal block has a width of 5.2 mm, a height of 45.8 mm, and a length of 92.4 mm.

Troubleshooting

Conductor not making a secure connection

Ensure the conductor is stripped to the correct length and fully inserted into the push-in terminal. For stranded wire, use a ferrule or twist the strands tightly. Check that the conductor size is within the specified range (0.14 mm² - 4 mm²).

Terminal block not staying on DIN rail

Verify that you are using a compatible DIN rail type (NS 35/7.5 or NS 35/15). Ensure the rail is properly secured and that the terminal block is correctly engaged with the rail's profile.

Lever disconnect is stiff or difficult to operate

Check for any obstructions around the lever. Ensure the terminal block is not under excessive mechanical strain from wiring. Lightly actuate the lever a few times; it should become smoother with use.

Pros and Cons

Pros

  • Tool-free wiring saves significant installation time.
  • Compact design maximizes space on DIN rails.
  • Robust construction with high voltage and current ratings.
  • Compatible with common DIN rail types.
  • Safe and easy circuit isolation with lever disconnect.

Cons

  • Requires a separate closing plate for complete insulation.
  • Push-in termination is best suited for solid or pre-ferruled conductors.
  • Specific DIN rail types (NS 35/7.5 and NS 35/15) are required for mounting.
  • Dual-level design may require careful planning for wire management.

Setup, Compatibility & Care

Setup:

  1. Ensure the correct DIN rail type (NS 35/7.5 or NS 35/15) is installed.
  2. Snap the terminal block onto the DIN rail.
  3. Insert conductors (0.14 mm² to 4 mm²) into the push-in connection points. Ensure the conductor is fully inserted.
  4. For proper insulation and to complete the terminal block assembly, attach a closing plate (sold separately) to the end of the terminal block row.

Compatibility:

  • DIN Rail: Compatible with NS 35/7.5 and NS 35/15.
  • Conductor Size: 0.14 mm² to 4 mm² (26-12 AWG).
  • Standards: Meets CSA standards.

Care:

  • Keep the terminal block clean and free from dust and debris.
  • Periodically check connections to ensure conductors remain securely inserted.
  • Avoid exposing the terminal block to excessive moisture or corrosive environments.