Practical tips
Good to Know: Practical Tips for Our Connectors

We have summarized all of the important information for safely using WAGO splicing connectors.

Helpful Tips:

  • On lighting connectors
  • On junction box connectors
  • On splicing connectors

Connecting Aluminum and Copper Conductors

Copper (Cu) or aluminum (Al): For electrical cables, it’s not a question of faith, but usually an issue of price. Both have their advantages and disadvantages, but when they come together, things can get dicey. However, electricians don’t necessarily need a specialty Al/Cu connector for building installations. With WAGO Alu-Plus Contact Paste, they can connect aluminum and copper conductors using WAGO connectors – quickly, easily and reliably.

The Right Connector for Every Application: WAGO’s Installation Connector Table

WAGO’s range of installation connectors is constantly evolving. Different solutions are available for every connection task in building installations. You can use the universal splicing connectors for all conductor types – or, if you prefer, you can use the more economical variant and rely on connectors specially designed for the wiring task at hand. The table provides an overview of the entire product range.

Series/ProductConductor TypeConductor RangeVoltage/CurrentTypes of Application

WAGO 243

MICRO PUSH WIRE® Connectors for Junction Boxes

!image-medium:item_de_0000CXCS!Ø 0.6 to 0.8 mm “e”100 V/6 AFor low-current applications such as wiring telephones and doorbells

WAGO 2273

COMPACT PUSH WIRE® Connectors for Junction Boxes

!image-medium:item_de_0000CXCS!0.5 to 2.5 mm2 “e”450 V/24 AFor installation in building circuits up to 2.5 mm2, even for wiring in tight spaces

WAGO 773

SPECIAL PUSH WIRE® Connectors for Junction Boxes



2.5 to 6 mm2 “e+m”400 V/41 AFor installation of building circuits up to 6 mm2 with fairly large loads a long cable runs

WAGO 224

Lighting and Inline Connectors


Installation side:

1 to 2.5 mm2 “e”

400 V/24 A

For installations with solid and fine-stranded conductors, e.g., for connecting lights



Lighting side:

0.5 to 2.5 mm2 “e+f”

WAGO 222

CLASSIC Splicing Connectors for all conductor types




0.08 to 2.5 mm2 “e+m”

0.08 to 4 mm2 “f”

400 V/32 AFor installation with solid, stranded and fine-stranded conductors

WAGO 221

COMPACT Splicing Connectors for all conductor types



0.2 to 4 mm2 “e+m”

0.14 to 4 mm2 “f”

450 V/32 AFor installation with solid, stranded and fine-stranded conductors, even for wiring in tight spaces

0.5 to 6 mm2 “e+m+f”

450 V/41 A

!image-medium:item_de_0000CXCS! = solid

!image-medium:item_de_0000CXDC! = stranded

!image-medium:item_de_0000CXDB! = fine-stranded

Helpful Tip for Lighting Connectors

  • WAGO 224 Series Lighting Connectors

Helpful Tips for Junction Box Connectors

Helpful Tips for Splicing Connectors

  • Using Splicing Connectors in Distribution Boxes
  • Better Installation Technology for Existing Buildings and New Construction

Recommended Reading

More Building Technology Applications

Building Installation

Perfect Electrical Interconnection Technology

Practical tips for installers: Fast, reliable, maintenance-free solutions simplify your everyday tasks.