General
Product type	Pass-through connector with lever
Maximum conductor cross-section	4,00 mm²
max. AWG	12
Number of conductors	2
Colour housing	Transparent
Cover colour	White
Maximum ambient temperature	85 °C

The WAGO 221-2401 is a through-connector with lever, designed for connecting two conductors in electrical installations. It is suitable for all types of conductors and is used in home automation as well as in industrial electrical installations, where a secure and quick connection of cables is required. The connector enables a mechanical connection without additional tools, with the lever providing the connection security. The maximum cross-sectional area is 4.00 mm², corresponding to the American specification max. 12 AWG. The housing colour is transparent, the cover is white, enabling visual inspection of the connection. The maximum ambient temperature is 85 °C (T85), allowing use in environments with moderate heat load.

Through-connector with lever mechanism offers a quick and reliable connection without requiring additional tools such as screwdrivers. The lever ensures that the conductors are securely held in the connector, creating a safe electrical connection. The construction is designed for use in electrical circuits where a stable and durable connection is required. The connection is made by inserting the conductors into the terminals and then actuating the lever, which secures the conductors under pressure.

Functions and equipment in detail include compatibility with all common conductor types, including copper and aluminium sections, as long as the cross-sectional size is within the specification of 4.00 mm². The maximum number of conductors that can be connected per connector is two, making it suitable for simple connections in circuit diagrams. The transparent housing colour allows visual inspection of correct conductor insertion, while the white cover provides clear contrast and facilitates positioning.

Technology explained simply shows that the connector is based on a clamp mechanism, where the conductors are secured under pressure by a lever mechanism. This pressure ensures a secure electrical connection without additional screw connections. The maximum temperature of 85 °C (T85) means the connector can be used in environments with moderate heat load without the materials losing their function. The use of transparent plastic for the housing allows easy inspection of the connection, which is advantageous during maintenance or fault diagnosis.

Compatibility and accessories include use with various mounting adapters specifically developed for mounting on screw terminals or snap-in feet. Compatible accessories include, for example, mounting adapter 221-2501 (1-way), 221-2502 (2-way), 221-2503 (3-way), 221-2504 (4-way), and 221-2505 (5-way), each with strain relief for screw mounting. Alternatively, adapters with snap-in feet are available, such as 221-2511 (1-way), 221-2512 (2-way), 221-2513 (3-way), 221-2514 (4-way), and 221-2515 (5-way). These adapters enable secure mounting of the connector on various surfaces, with strain relief reducing mechanical stress on the connection. Additionally, mounting feet such as 209-120 and 209-123 are available, enabling mounting on terminals with snap-in feet or screw mounting. Labels such as 210-834 (5 mm, white, 5-track, 25 m/roll) can be used for marking connections.

Mounting and installation is performed by simply inserting the conductors into the terminals and actuating the lever. Mounting to the base surface is done using the mentioned adapters, which can be installed on screw terminals or snap-in feet depending on requirements. The adapters ensure the connector is securely positioned and mechanical loads such as tension or vibration are absorbed. Installation requires no special tools, except for mounting the adapters, which is typically done with a screwdriver or wrench.

Advantages in operation include quick and secure tool-free connection, visual inspection via the transparent housing, and compatibility with various mounting options. The use of mounting adapters with strain relief increases the long-term stability of the connection, especially in environments with mechanical stress. The maximum temperature of 85 °C (T85) allows use in a wide range of installation scenarios without thermal impairment. Use in home automation and industrial electrical installations is supported by the robust construction and easy handling.