Finder 22.22.8.024.4000 – 22 Series Modular monostable relays

Why Choose the Finder 22.22.8.024.4000 Modular Contactor?

The Finder 22.22.8.024.4000 is a compact 20 A, 2-pole modular contactor featuring a 24 V AC operating coil and two normally open power contacts. Part of the Finder Series 22 range, this DIN rail-mounted contactor is designed for reliable electrical load switching in lighting systems, building automation, distribution boards and industrial control installations.

Equipped with silver tin oxide (AgSnO2) contacts, the Finder 22.22.8.024.4000 is particularly suitable for applications involving lighting circuits and loads with elevated switching inrush currents. Its 2 NO (DPST-NO) contact arrangement enables two circuits or conductors to be switched simultaneously when the 24 V AC coil is energised.

With a narrow 17.5 mm modular housing, standard 35 mm DIN rail mounting and screw terminal connections, the contactor provides a space-efficient solution for electrical control panels. Its modular design supports convenient installation, identification and maintenance in professional electrical distribution equipment.

Key Advantages

• 20 A rated switching current for suitable electrical power loads.
• 24 V AC operating coil for low-voltage AC control systems.
• Two normally open contacts for simultaneous two-pole switching.
• AgSnO2 contact material designed for demanding switching applications.
• Particularly suitable for lighting circuits with significant inrush currents.
• 17.5 mm housing width occupies approximately one DIN rail module.
• Standard 35 mm DIN rail mounting simplifies panel integration.
• Screw terminal connections provide secure electrical termination.
• Suitable for continuous-duty operation within the specified ratings.
• Modular construction supports organised electrical distribution boards.
• Provides electrical separation between the control coil and switching contacts.
• Suitable for residential, commercial and industrial control applications.

Key Features

• Finder Series 22 modular contactor.
• Type 22.22 two-pole configuration.
• 24 V AC nominal coil voltage.
• 20 A rated contact current.
• Two normally open contacts (2 NO / DPST-NO).
• 250 V AC nominal contact voltage.
• 5,000 VA rated switching capacity for suitable resistive loads.
• AgSnO2 silver tin oxide contact material.
• 41 Ω nominal coil resistance.
• Approximately 3 VA coil consumption.
• Double-break normally open contacts.
• 17.5 mm modular width.
• 35 mm DIN rail installation.
• Screw terminal connections.
• IP20 protection rating.
• Designed for use in suitable electrical distribution and control enclosures.

Reliable Two-Pole Switching for Lighting and Electrical Control

The Finder 22.22.8.024.4000 uses an electromagnetic operating mechanism to switch two normally open contacts when its 24 V AC coil is energised. When the coil supply is removed, the contacts return to their normally open state. This non-latching operation makes the device suitable for applications requiring electrical loads to follow an external control signal.

The 2 NO contact configuration allows simultaneous switching of two separate circuits or two conductors within an appropriately designed installation. The contactor is rated for 20 A, with a nominal contact voltage of 250 V AC and a rated switching capacity of 5,000 VA for suitable loads.

A significant feature of this model is its AgSnO2 contact material. Silver tin oxide contacts are used in applications where switching performance under demanding electrical conditions is important, particularly with lighting loads that can produce high initial currents. The actual permitted load depends on its electrical characteristics, and LED drivers, discharge lighting and other electronic loads should be assessed against the relevant Finder load ratings.

The 24 V AC operating coil allows the contactor to be controlled by a suitable low-voltage AC control circuit while switching separately connected power loads. This arrangement is useful in building automation systems, relay-controlled lighting panels and electrical installations where control and load circuits operate at different voltages.

With its 17.5 mm width, the Finder 22.22.8.024.4000 occupies minimal space inside an electrical distribution board. Its screw terminals and standard DIN rail mounting make it convenient for professional panel assembly and replacement applications.

The contactor should be installed within a suitable electrical enclosure, with appropriate circuit protection and conductor sizing. Its IP20 rating provides basic protection against contact with hazardous parts but does not make the device suitable for unprotected outdoor or wet-location installation.

Typical Applications

• Commercial and residential lighting distribution boards.
• Two-pole electrical load switching.
• Building automation and lighting control panels.
• Office and retail lighting circuits.
• Industrial auxiliary power control.
• Electrical distribution and control cabinets.
• Low-voltage AC-controlled switching systems.
• Automated lighting circuits with suitable control relays.
• Electrical panel building and OEM assemblies.
• Suitable resistive and inductive load switching.
• Maintenance and replacement of modular contactors.
• Energy management and scheduled load-control installations.