Finder 22.22.9.024.4000 – 22 Series Modular monostable relays

Why Choose the Finder 22.22.9.024.4000 Modular Relay?

The Finder 22.22.9.024.4000 is a compact 20 A modular power relay designed for dependable switching of electrical loads in lighting control, building automation and industrial control applications. Part of the Finder 22 Series, this DIN rail-mounted relay features two normally open contacts, a 24 V DC operating coil and robust silver tin oxide contact material.

With its DPST-NO (2NO) contact configuration, the Finder 22.22.9.024.4000 allows two separate circuits to be switched simultaneously from a single control signal. Each contact is rated at 20 A and 250 V AC, with a maximum switching voltage of 400 V AC. The relay is particularly suitable for installations requiring reliable switching of compatible lighting equipment and other electrical loads.

Its slim 17.4 mm housing occupies approximately one standard DIN rail module, helping maximise available space inside electrical distribution boards. The relay also features AgSnO2 contacts, a convenient manual test button and screw terminals for secure electrical connections. Its 24 V DC coil enables integration with compatible automation controllers, timers, switches and low-voltage control systems.

Key Advantages

• Two normally open contacts (2NO) for simultaneous switching of two electrical circuits.
• 20 A rated contact current for compatible power and lighting applications.
• 24 V DC operating coil for integration with low-voltage control systems.
• 250 V AC rated contact voltage for mains-powered loads.
• 400 V AC maximum switching voltage.
• Silver tin oxide (AgSnO2) contacts suitable for appropriately rated lighting and higher-inrush loads.
• Compact 17.4 mm width helps save space in electrical distribution boards.
• 35 mm DIN rail mounting for convenient installation.
• Integrated manual test button assists commissioning and maintenance.
• Monostable relay operation ensures contacts return to their normal state when the coil is de-energised.
• Continuous-duty coil supports applications requiring sustained operation.
• IP20 protection rating for protected indoor electrical installations.
• Screw terminal connections provide secure wiring.
• Suitable for lighting automation, control panels and electrical load switching.

Key Features

• Finder 22 Series modular monostable relay.
• Two-pole, normally open contact arrangement.
• DPST-NO / 2 Form A configuration.
• 20 A rated contact current.
• 24 V DC nominal coil voltage.
• 250 V AC rated contact voltage.
• 400 V AC maximum switching voltage.
• 5,000 VA AC1 switching capacity.
• 1,000 VA AC15 switching capacity at 230 V AC.
• AgSnO2 contact material.
• 460 Ω nominal coil resistance.
• Approximately 52.2 mA nominal coil current.
• 1.25 W nominal DC coil consumption.
• 15 ms operate time.
• 8 ms release time.
• Mechanical life of approximately 500,000 cycles.
• Electrical life of approximately 50,000 cycles at rated AC1 load.
• Integrated test button for local operation checks.
• Identification label provision.
• −40 to +40 °C ambient operating temperature.
• IP20 protection rating.
• 35 mm DIN rail installation according to EN 60715.
• 17.4 mm modular housing width.
• Screw terminal electrical connections.

Reliable Two-Pole Switching for Lighting and Electrical Automation

The Finder 22.22.9.024.4000 modular relay is designed to provide dependable switching between a low-voltage control circuit and connected electrical loads. When a suitable 24 V DC control voltage is applied to the coil, the relay energises and closes both normally open contacts. When the coil supply is removed, the contacts return to their open state.

Its two-pole normally open arrangement makes the relay particularly useful where two separate conductors or circuits need to be controlled from the same signal. In lighting control applications, this can allow multiple compatible loads to be switched together, subject to the electrical design and relevant installation regulations.

The relay uses silver tin oxide (AgSnO2) contact material, selected for its suitability in applications involving electrical loads with significant switching demands. This includes appropriately rated lighting equipment and circuits where initial inrush current must be considered. However, the relay's 20 A contact rating applies to specified load conditions and must not be assumed to represent the permissible current for every lamp, driver or motor type.

For lighting installations, the Finder 22.22 provides separate manufacturer ratings for incandescent lamps, fluorescent lighting, compact fluorescent lamps and LED loads. In particular, its specified 230 V LED lamp rating is 200 W, reflecting the need to account for the characteristics of LED drivers rather than selecting the relay solely from its general-purpose AC1 current rating.

The 17.4 mm DIN rail housing is well suited to compact control panels and electrical distribution boards. Its integrated test button helps electricians and maintenance engineers check relay operation during commissioning. Screw terminals allow secure electrical connections, while the relay's monostable design provides straightforward control behaviour for building automation systems.

Because the relay is operated by a 24 V DC coil, it can be controlled by appropriately rated low-voltage devices, including PLC outputs, control relays, automation modules and switching interfaces. The coil requires approximately 52.2 mA during normal operation, so the connected control device and power supply must be capable of providing the required current.

Typical Applications

• Commercial and residential lighting control circuits.
• Switching compatible LED lighting installations.
• Electrical distribution boards and modular control panels.
• Building automation systems.
• Industrial control cabinets.
• 24 V DC control systems requiring mains-load switching.
• PLC-controlled electrical equipment.
• Timed lighting and electrical switching.
• Compatible fluorescent and halogen lighting circuits.
• Two-pole switching applications.
• Remote switching through appropriately rated control interfaces.
• Electrical load management systems.
• Commercial premises and office installations.
• Retail lighting and showroom control.
• Electrical maintenance and refurbishment projects.