Finder 22.23.9.024.4000 – 22 Series Modular monostable relays

Why Choose the Finder 22.23.9.024.4000 Modular Contactor?

The Finder 22.23.9.024.4000 is a compact 20 A, two-pole modular contactor featuring a 24 V DC operating coil and a 1 normally open + 1 normally closed (1 NO + 1 NC) contact configuration. Part of the Finder Series 22, this DIN rail-mounted electromagnetic relay is designed for reliable electrical switching in building automation, lighting control, industrial control panels and electrical distribution systems.

Unlike two-pole contactors with two normally open contacts, the Finder 22.23.9.024.4000 provides complementary NO and NC switching functions. When the operating coil is energised, the normally open contact closes while the normally closed contact opens. This arrangement is useful for applications requiring coordinated switching, alternative circuit operation or electrical control logic.

With AgSnO2 silver tin oxide contacts, a compact 17.5 mm modular housing, standard 35 mm DIN rail mounting and screw terminal connections, the Finder 22.23.9.024.4000 provides a space-efficient solution for professional electrical installations. Its DC-operated coil consumes approximately 1.25 W, making it suitable for integration with compatible 24 V DC control supplies.

Key Advantages

• 20 A rated contact current for suitable electrical switching applications.
• 24 V DC operating coil for integration with low-voltage DC control systems.
• 1 NO + 1 NC contact arrangement provides complementary switching functions.
• AgSnO2 silver tin oxide contacts offer reliable switching characteristics.
• 17.5 mm modular width minimises space requirements in electrical distribution boards.
• 35 mm DIN rail mounting enables straightforward installation.
• Low coil consumption of approximately 1.25 W.
• Mechanical and LED status indicators support operating-state identification.
• Test button assists with commissioning and maintenance.
• Continuous-duty coil and contacts support sustained operation within rated conditions.
• Reinforced insulation provides protective separation between coil and contact circuits.
• IP20 protection rating for installation inside suitable electrical enclosures.
• Screw terminals provide secure electrical connections.
• Suitable for building automation, lighting control and industrial switching applications.

Key Features

• Finder Series 22 modular electromagnetic relay.
• Type 22.23 with two-pole switching.
• 24 V DC nominal coil voltage.
• 20 A rated contact current.
• 1 NO + 1 NC contact configuration.
• 250 V AC nominal contact voltage.
• 400 V AC maximum switching voltage.
• 5,000 VA rated switching capacity for suitable resistive loads.
• 460 Ω nominal coil resistance.
• Approximately 52.2 mA nominal coil current.
• 1.25 W nominal coil power.
• AgSnO2 cadmium-free contact material.
• Mechanical and LED indicators for contactor status.
• Integrated test button for operational checks.
• 35 mm DIN rail mounting to EN 60715.
• 17.5 mm modular housing width.
• Identification label for panel documentation.
• Non-latching electromagnetic operation.
• IP20 protection rating.

Complementary NO and NC Switching with 24 V DC Control

The Finder 22.23.9.024.4000 uses an electromagnetic operating mechanism to control two independent switching contacts through a 24 V DC coil. In the de-energised condition, the normally open contact remains open and the normally closed contact remains closed. Applying the correct DC voltage reverses these states, allowing two circuits to respond differently to the same control signal.

This 1 NO + 1 NC arrangement is particularly useful in electrical control applications where one circuit must be enabled while another is disabled. Typical examples include status-dependent load control, complementary switching arrangements and control circuits requiring both normally open and normally closed functions.

The relay is rated for 20 A contact current at a nominal contact voltage of 250 V AC. Its AgSnO2 silver tin oxide contacts provide switching characteristics suitable for a range of electrical loads, including appropriately rated lighting circuits. Actual permissible load current must be assessed against the applicable switching category, power factor and inrush characteristics.

The 24 V DC coil has a nominal resistance of 460 Ω and consumes approximately 1.25 W. This makes the device suitable for control panels supplied by compatible DC power supplies and controllers. The coil is designed for continuous-duty operation, enabling the contactor to remain energised when required by the application.

For convenient commissioning and maintenance, the Series 22 design incorporates mechanical and LED indicators together with a test button. These features help installers identify operating conditions and carry out appropriate functional checks during system installation or troubleshooting.

The contactor is designed for 35 mm DIN rail mounting and occupies approximately 17.5 mm of rail width. Its compact housing makes it suitable for distribution boards and control cabinets where space efficiency is important. The device should be installed within a suitable enclosure, with correct conductor sizing, circuit protection and separation of control and power wiring.

Important selection note: The Finder 22.23.9.024.4000 is the 24 V DC, 1 NO + 1 NC version. It must not be confused with Finder 22.22 models featuring two normally open contacts or with Series 22 contactors using AC operating coils.

Typical Applications

• Industrial control panels and automation equipment.
• Building automation switching circuits.
• Electrical distribution boards.
• 24 V DC-controlled power switching.
• Lighting control and automation systems.
• Complementary NO and NC switching applications.
• Auxiliary power control circuits.
• Control circuits requiring opposite contact states.
• Commercial electrical installations.
• OEM machinery and control assemblies.
• Energy management and scheduled switching systems.
• Replacement of compatible two-pole modular contactors.