Why Choose the Finder 65.31.9.024.4009 Power Relay?
The Finder 65.31.9.024.4009 is a robust 20 A industrial electromechanical power relay designed for dependable switching in industrial automation, machinery and electrical control systems. Part of the established Finder 65 Series, this relay features a 24 V DC operating coil and a versatile 1 normally open + 1 normally closed (1 NO + 1 NC) contact configuration.
Its two independently wired contacts provide complementary switching functions. When the coil is energised, the normally open contact closes while the normally closed contact opens. The relay uses silver tin oxide (AgSnO₂) contacts and offers a 20 A rated contact current, making it suitable for appropriately rated industrial electrical loads.
With a 250 V AC rated contact voltage, 5,000 VA AC1 resistive switching capacity and Faston 250 quick-connect terminals, the Finder 65.31.9.024.4009 provides a practical solution for industrial control panels, equipment switching and maintenance applications requiring a 24 V DC coil.
Key Advantages
- 20 A rated contact current for industrial load-switching applications.
- 24 V DC operating coil for compatible low-voltage DC control circuits.
- 1 NO + 1 NC contact configuration for complementary switching functions.
- Silver tin oxide (AgSnO₂) contacts for dependable electrical switching.
- 5,000 VA AC1 switching capacity for suitable resistive loads.
- 1.3 W nominal coil consumption for efficient DC operation.
- Faston 250 quick-connect terminals for convenient wiring.
- Rear flange mounting for secure installation in compatible equipment.
- 30 million operations mechanical endurance under specified conditions.
- Non-latching operation returns the contacts to their normal positions when coil power is removed.
- Wide operating temperature range suitable for demanding industrial environments.
- Suitable for automation, auxiliary control, machinery and electrical equipment maintenance.
Key Features
- Finder 65 Series industrial power relay.
- 20 A rated contact current.
- 24 V DC nominal coil voltage.
- One normally open and one normally closed contact.
- Two independently wired single-throw contact circuits.
- 250 V AC rated contact voltage.
- 400 V AC maximum switching voltage.
- Silver tin oxide (AgSnO₂) contact material.
- 1.3 W nominal DC coil consumption.
- 54 mA nominal coil current.
- 445 Ω nominal coil resistance.
- Faston 250 terminals measuring 6.3 × 0.8 mm.
- Rear flange mounting arrangement.
- Six electrical terminals for the coil and two separate contact circuits.
- RT I environmental protection category.
- −40 to +75 °C operating temperature range.
- Non-latching DC coil operation.
Reliable 20 A Switching for 24 V DC Industrial Control Systems
The Finder 65.31.9.024.4009 operates as an electrically controlled switch. When its 24 V DC coil is energised, the normally open contact closes and the normally closed contact opens. When coil power is removed, both contacts return to their normal states. This arrangement enables one control signal to operate two electrical circuits with opposite switching functions.
The 1 NO + 1 NC configuration is useful where one circuit must be energised while another is disconnected. Applications include auxiliary equipment control, signalling, change-of-state indication and complementary switching arrangements. Unlike a conventional changeover contact, the two contacts are independently wired and do not share a common terminal.
The relay's silver tin oxide contacts support repeated switching of compatible industrial loads. Its 20 A contact rating and 5,000 VA AC1 resistive load capacity make it suitable for electrical equipment requiring higher-current switching, provided that the connected load remains within the manufacturer's applicable ratings.
For installation, the Faston 250 quick-connect terminals allow convenient connection using compatible receptacles, while the rear flange mounting arrangement provides secure attachment to a suitable chassis or panel. The 24 V DC coil makes this model particularly useful in industrial control systems using a nominal 24 V DC supply.
Typical Applications
- Industrial automation and electrical control panels.
- 24 V DC control systems and auxiliary switching circuits.
- Industrial machinery and manufacturing equipment.
- Electrical load switching and equipment control.
- Complementary normally open and normally closed switching.
- Industrial heating and temperature control systems.
- Lighting control and building automation.
- Electrical signalling and equipment status circuits.
- Conveyor systems and material handling equipment.
- Industrial process control systems.
- HVAC and ventilation equipment control.
- Electrical power management and distribution equipment.
- Maintenance and replacement of compatible industrial relays.
- Applications requiring a 24 V DC coil and 20 A 1 NO + 1 NC contacts.
