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Practical tips 6 January 2022

Good to Know: Practical Tips for Our Terminal Blocks

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’s 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 Type Conductor RangeVoltage/CurrentTypes of Application

WAGO 243

MICRO PUSH WIRE® Connectors for Junction Boxes

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

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

= solid

= stranded

= fine-stranded

Correct Power Wiring: It All Depends on the Unit

In everyday use, product names are often simplified, for example, the “two-five WAGO” or the “one-five NYM.” When product types use a uniform naming scheme, such simplifications are generally adequate. But if they don’t, technical problems could arise due to incorrect product selection!

An example from real life: The dimensions for installation cables and lines used for power wiring, such as NYM lines, are specified in mm2, i.e. by the conductor cross-section. In contrast, dimensions for conductors used for signal and communication purposes, such as doorbell or J-Y(ST)Y conductors, are indicated in mm, i.e. by the conductor diameter. In order to ensure that splicing connectors can be clearly associated with the appropriate conductors, the corresponding WAGO connectors are also designated in the same way.

The connection range of the 2273 Series COMPACT PUSH WIRE® Junction Box Connectors for power wiring with installation cables and lines is specified in terms of the conductor cross-section: 0.5 to 2.5 mm2 (20–14). The connection range of the 243 Series MICRO PUSH WIRE® Junction Box Connectors for signal and communications lines is specified in terms of the diameters: from 0.4 to 0.5 and 0.6 to 0.8 mm.

If the corresponding unit is ignored, it would be easy to get the impression that the new 2273 Series COMPACT PUSH WIRE® Connector for Junction Boxes could also be used for 0.6 mm and 0.8 mm signal and communication lines, since its larger connection range goes up to 0.5 – But that actually refers to the conductor cross-section of 0.5 mm2 (20 AWG)! When converted to conductor diameter, this corresponds exactly to a diameter of 0.8 mm (0.031 inches). This means that signal and communication lines with a conductor diameter of 0.8 mm (0.031 inches) can be connected with the 2273 Series. The 243 Series MICRO PUSH WIRE® Connector for Junction Boxes is available for all conductors with a diameter of less than 0.8 mm.

Overview:

  • NYM conductors are indicated in mm2, i.e. in terms of the conductor cross-section.

  • In contrast, doorbell or J-Y(ST)Y conductors are indicated in mm, i.e. the conductor diameter.

  • COMPACT PUSH WIRE® 2273 Series Connectors for Junction Boxes are indicated with conductor cross-sections from 0.5 to 2.5 mm2.

  • MICRO PUSH WIRE® Junction Box Connectors are specified with diameters from 0.4 to 0.5 and 0.6 to 0.8 mm.

Helpful Tip for Lighting Connectors

  • WAGO 224 Series Lighting Connectors

Tip: WAGO 224 Series Lighting Connectors

WAGO’s 224 Series Lighting Connectors are typically employed to connect lights safely and quickly. But with several variants and universally applicable approvals, these connectors can do much more: Connecting motors for sunblinds or roller shutters, motors, fans, recirculation pumps, door and window sensors, heating controls – the list goes on. Wherever flexible conductors need to be connected to solid conductors, the 224 Series demonstrates its strengths.
WAGO’s 224 Series Lighting Connectors boast compelling performance. They are certified according to EN 60998, so they can be employed as an independent operating unit anywhere electrical power is used for household and other purposes. With a nominal voltage of 400 V and nominal current of 24 A, the 224 Series fulfills all building requirements in the 2.5 mm2/14 AWG maximum connectable conductor cross-section range.
Cage_Clamp_1-2011.jpg

In addition to the connectable conductor types and sizes, the lighting connectors also offer numerous options for connecting fine-stranded conductors to solid conductors: a connection side for solid conductors with cross-sections ranging from 1 mm2 to 2.5 mm2 (18–14 AWG), and a connection side for fine-stranded conductors with cross-sections ranging from 0.5 mm2 to 2.5 mm2 (20–14 AWG).

Two additional versions extend the 224 Series’ range of uses: First of all, the standard and 2-conductor versions are available for use at higher continuous operating temperatures of up to 120 °C (248 °F) in a black plastic housing. Secondly, service connectors allow use of solid and fine-stranded conductors on both sides of the through terminal block. Possible uses include connections in lighting displays, as well constructing circuits on the fly for trade shows or tests.
Advantages for Electricians:
  • Fast and easy installation – without tools
  • Fast, secure connection of fine-stranded conductors without processing the conductor ends
  • Safe connection points with touch-proof protection
  • Permanent, secure connection with CAGE CLAMP® spring pressure termination technology
  • Fast connection of lamps for circuit tests
Advantages for Operators:
  • Durable, secure connection with no loose contacts
  • Unambiguous, safe handling for changing of lights – even by untrained staff
  • Insulated clamping points when the lights are removed (renovation work)