Why Choose the Finder 66.22.9.024.4300 Power Relay?
The Finder 66.22.9.024.4300 is a robust and reliable 30 A electromagnetic power relay designed for switching high-current electrical loads in industrial automation, power electronics and electrical control systems. Featuring a 24 V DC coil and DPST-NO (double-pole single-throw, normally open) contacts, this relay provides dependable switching performance for demanding electrical and electronic applications.
As part of the established Finder Series 66 power relay range, the 66.22.9.024.4300 combines high switching capacity with reinforced insulation between the operating coil and switching contacts. Its silver tin oxide (AgSnO2) contact material provides excellent resistance to electrical arcing and contact wear, helping maintain reliable switching performance when controlling substantial electrical loads.
With a 30 A nominal contact current rating, 24 V DC operating coil and PCB-mounted construction, the Finder 66.22.9.024.4300 is suitable for photovoltaic inverters, industrial control equipment, heating systems and power management electronics. Its two normally open contacts enable simultaneous switching of two electrical circuits, while the compact housing supports straightforward integration into printed circuit board assemblies.
Key Advantages
- High-performance 30 A electromagnetic power relay designed for demanding electrical switching applications.
- 24 V DC operating coil compatible with commonly used industrial control voltages.
- DPST-NO contact configuration enables simultaneous switching of two normally open circuits.
- Silver tin oxide (AgSnO2) contacts provide excellent resistance to electrical wear and arcing.
- Reinforced insulation between coil and contacts enhances electrical safety.
- 8 mm creepage and clearance distances support effective electrical separation between control and load circuits.
- PCB mounting with solder terminals allows secure integration into electronic control assemblies.
- 10 million mechanical operations rated endurance for dependable long-term switching.
- Wide operating temperature range of −40 to +70 °C supports use in demanding industrial environments.
Key Features
- Finder Series 66 industrial power relay.
- 30 A nominal contact current for high-current electrical load switching.
- 24 V DC rated coil voltage.
- DPST-NO (2 Form A) contact arrangement with two normally open contacts.
- 250 V AC nominal switching voltage.
- 440 V AC maximum switching voltage.
- 220 V DC maximum switching voltage.
- 1.7 W nominal coil power consumption.
- 340 Ω nominal coil resistance.
- 70.5 mA nominal coil current.
- AgSnO2 contact material for reliable high-current switching.
- 6 kV coil-to-contact impulse withstand capability.
- 4,000 V AC coil-to-contact dielectric strength.
- 8 mm creepage and clearance distance between coil and contacts.
- 8 ms operating time for responsive electromechanical switching.
- 10 million mechanical operations rated endurance.
- 100,000 electrical operations rated endurance under specified load conditions.
- 12-pin PCB mounting configuration with solderable terminals.
- Compact 51.5 × 33.5 × 31 mm housing.
Reliable Power Switching for Industrial Control Systems
Electromagnetic power relays such as the Finder 66.22.9.024.4300 allow low-voltage control circuits to operate higher-current electrical loads through electrically isolated switching contacts. When the 24 V DC coil is energised, the relay closes its two normally open contacts, allowing electrical current to flow through the connected load circuits. When the coil is de-energised, the contacts return to their normally open state.
The DPST-NO contact arrangement enables simultaneous switching of two separate electrical circuits or conductors. This makes the relay particularly useful in power switching equipment, industrial control systems and photovoltaic inverter applications where coordinated electrical switching is required.
The Finder Series 66 is designed for applications requiring high switching capacity, robust contact construction and reinforced electrical insulation. Its silver tin oxide contacts, PCB-mounted format and wide operating temperature range support dependable integration into industrial machinery, power electronic assemblies and automated electrical systems.
Typical Applications
- Photovoltaic inverters and solar power switching equipment.
- Industrial automation and electrical control circuits.
- Power switching and electrical distribution control systems.
- Heating, ventilation and air conditioning (HVAC) equipment.
- Industrial ovens, burners and boiler control systems.
- Electrical generators and standby power equipment.
- Industrial machinery and motor control circuits.
- Power electronic equipment and inverter assemblies.
- Domestic appliances and industrial washing equipment.
- PCB-based electrical switching and control modules.
- OEM machinery and industrial electronic equipment.
