221-412 Wago Splicing connector with levers;for all conductor types;max. 4 mm²;transparent

221-412 Wago Splicing connector with levers;for all conductor types;max. 4 mm²;transparent

WAGO 221-412 compact two-conductor transparent splicing connector with lever-operated CAGE CLAMP® technology for solid, stranded and fine-stranded copper conductors up to 4 mm², rated at 450 V and 32 A under IEC/EN ratings.

SKU: 221-412Alt SKU: 221412MPN: 221-412
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Why Choose the WAGO 221-412 Splicing Connector with Levers?

The WAGO 221-412 is a compact 2-conductor splicing connector with levers designed for fast, secure and convenient electrical connections across a wide range of installation applications. As part of the popular WAGO 221 Series, it uses proven CAGE CLAMP® spring-pressure connection technology and accepts solid, stranded and fine-stranded copper conductors, making it an exceptionally versatile alternative to conventional screw-type connectors.

The connector's transparent polycarbonate housing allows installers to visually inspect conductor position and verify that wires have been stripped and inserted correctly. Two orange operating levers make connections straightforward: simply raise the lever, insert the stripped conductor and lower the lever to create a secure spring-pressure connection. Integrated test facilities also allow convenient electrical testing after installation.

Supporting conductors up to 4 mm², with a rated voltage of 450 V and rated current of 32 A under its IEC/EN rating, the WAGO 221-412 is suitable for numerous lighting, building wiring, equipment and electrical installation applications. Its extremely compact housing measures approximately 13.2 × 8.4 × 18.8 mm, making it particularly useful where space inside junction boxes and enclosures is limited.

Key Advantages

  • Compact 2-conductor splicing connector for fast electrical connections.
  • Lever-operated CAGE CLAMP® connection technology provides secure, maintenance-free conductor termination.
  • Accepts solid, stranded and fine-stranded conductors for excellent installation flexibility.
  • Suitable for conductor sizes up to 4 mm².
  • 450 V rated voltage and 32 A rated current under IEC/EN ratings.
  • Transparent housing enables visual inspection of conductor insertion.
  • Orange operating levers provide quick and intuitive connection and disconnection.
  • Compact design is ideal for space-restricted junction boxes and electrical enclosures.

Key Features

  • WAGO 221 Series compact splicing connector.
  • Two conductor connection points on one potential.
  • 4 mm² nominal cross-section.
  • 32 A rated current.
  • 450 V nominal voltage.
  • 4 kV rated impulse voltage.
  • CAGE CLAMP® spring-pressure connection technology.
  • Convenient lever actuation.
  • Solid conductor range of 0.2–4 mm².
  • Stranded conductor range of 0.2–4 mm².
  • Fine-stranded conductor range of 0.14–4 mm².
  • 11 mm stripping length.
  • Transparent housing with orange operating levers.
  • Compact housing for space-saving electrical installations.
  • Maximum surrounding air temperature of 85 °C (T85).

Fast and Reliable Lever-Operated Electrical Connections

Splicing connectors such as the WAGO 221-412 provide a convenient way to join electrical conductors without screw terminals. The two conductor connection points share one electrical potential, allowing two conductors of the same or different supported types and cross-sections to be securely interconnected within a compact housing.

WAGO CAGE CLAMP® technology maintains reliable spring pressure on the conductor without routine retightening. Installation is straightforward: raise the orange lever, insert the correctly stripped conductor and close the lever. The transparent housing provides additional installation confidence by allowing the conductor position to be visually checked before the connection is placed into service.

Typical Applications

  • Electrical junction boxes and enclosures.
  • Lighting installations and lighting circuits.
  • Building and domestic electrical wiring.
  • Industrial machinery and equipment wiring.
  • Connecting solid, stranded and fine-stranded conductors.
  • Control panels and electrical assemblies.
  • Equipment installation, maintenance and modification.

Technical Specifications

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Number of Connection Points 2
Product Series WAGO
Connection Spring clamp
Terminal Type Pluggable connector
Conductor Size 4 mm²
Colour Clear
HS Code 85369010
Country of Manufacture Germany
Manufacturer WAGO
Series 221 Series
Model 221-412
Product type Splicing connector with levers
Terminal type Splice
Connection technology CAGE CLAMP®
Actuation Lever
Nominal cross-section 4 mm² / 12 AWG
Solid conductor range 0.2–4 mm² / 24–12 AWG
Stranded conductor range 0.2–4 mm² / 24–12 AWG
Fine-stranded conductor range 0.14–4 mm² / 24–12 AWG
Connectable conductor material Copper
Nominal voltage 450 V
Rated current 32 A
Rated impulse voltage 4 kV
Number of connection points 2
Number of potentials 1
Wiring direction Side-entry wiring
Stripping length 11 mm
Colour Transparent
Actuator colour Orange
Insulating material Polycarbonate (PC)
Flammability class UL 94 V-2
Dimensions (W × H × D) approx. 13.2 × 8.4 × 18.8 mm
Weight approx. 1.7 g
Maximum surrounding air temperature 85 °C (T85)
Maximum continuous operating temperature 105 °C

Frequently Asked Questions

What is the WAGO 221-412 used for?

The WAGO 221-412 is a two-conductor splicing connector used to quickly and securely join copper conductors in electrical installations, lighting circuits, junction boxes, equipment and machinery.

What conductor sizes can the WAGO 221-412 accept?

The connector accepts 0.2–4 mm² solid and stranded conductors and 0.14–4 mm² fine-stranded conductors, making it suitable for a wide variety of electrical wiring applications.

What voltage and current is the WAGO 221-412 rated for?

Under its IEC/EN rating, the WAGO 221-412 has a nominal voltage of 450 V and a rated current of 32 A.

How do you connect a wire to the WAGO 221-412?

Strip approximately 11 mm of insulation from the conductor, raise the orange lever, fully insert the conductor into the connector and lower the lever to create a secure CAGE CLAMP® spring-pressure connection.

Can the WAGO 221-412 connect different conductor types?

Yes. The WAGO 221-412 is designed for solid, stranded and fine-stranded copper conductors, allowing supported conductor types and cross-sections to be conveniently connected within the same splicing connector.

Trusted by Electrical Installers Worldwide

WAGO 221 Series splicing connectors are widely used by electricians, installers, panel builders and equipment manufacturers for compact, convenient and dependable electrical connections across building, industrial and equipment wiring applications.