66.22.8.024.4300 Finder Power relay 2pole 30A 24V

Why Choose the Finder 66.22.8.024.4300 Power Relay?

The Finder 66.22.8.024.4300 is a high-performance Finder 66 Series electromagnetic power relay designed for reliable high-current switching in industrial automation, machinery control and commercial electrical equipment. Featuring a 24 V AC operating coil and two normally open (2 NO / DPST-NO) contacts, it allows a single control signal to switch two electrical circuits simultaneously.

Part of Finder's established 66 Series, this relay combines silver tin oxide (AgSnO₂) contact material, direct printed circuit board (PCB) mounting and a robust electromagnetic switching mechanism. Its bifurcated solder terminals provide secure connections to suitably designed control boards, while the two normally open contacts are particularly useful for controlling electrical loads that must be energised together.

With a 24 V AC coil, 250 V AC rated contact voltage and a high-current contact system designed for demanding switching applications, the Finder 66.22.8.024.4300 is a practical choice for OEM equipment, industrial heating systems, automated machinery and commercial appliances. The relay also provides reinforced insulation between the coil and contacts, supporting reliable separation between the control supply and switched electrical circuits.

Key Advantages

• Two normally open contacts for coordinated switching of two independent circuits.
• 24 V AC operating coil for compatible industrial AC control systems.
• High-current power switching capability for suitable industrial electrical loads.
• 250 V AC rated contact voltage for commercial and industrial equipment.
• 440 V AC maximum switching voltage, subject to the applicable contact ratings.
• Silver tin oxide (AgSnO₂) contact material for robust switching performance.
• Direct PCB mounting for integration into electronic control assemblies.
• Bifurcated solder terminals for secure electrical and mechanical connections.
• Reinforced insulation between the coil and contact circuits.
• 8 mm creepage and clearance distances between the coil and contacts.
• 6 kV impulse withstand capability between the coil and contacts.
• Monostable, non-latching operation returns both contacts to their open positions when coil power is removed.

Key Features

• Finder 66 Series electromagnetic power relay.
• Type 66.22 PCB-mounted configuration.
• 24 V AC nominal coil voltage.
• 50/60 Hz AC coil operation.
• Two normally open contacts (2 NO / DPST-NO).
• 250 V AC rated contact voltage.
• 440 V AC maximum switching voltage.
• Silver tin oxide (AgSnO₂) contact material.
• 3.6 VA nominal AC coil consumption at 50 Hz.
• 50 Ω nominal coil resistance.
• Approximately 150 mA nominal coil current.
• 19.2–26.4 V AC coil operating range at specified reference conditions.
• Direct PCB mounting with bifurcated solder terminals.
• Reinforced coil-to-contact insulation.
• 8 mm creepage and clearance distances between coil and contacts.
• 6 kV impulse withstand voltage between coil and contacts.
• RT II flux-proof environmental protection.
• Monostable electromagnetic operation.
• −40 to +70 °C ambient operating temperature range.

Reliable Dual-Pole Switching with 24 V AC Control

The Finder 66.22.8.024.4300 uses a 24 V AC electromagnetic coil to operate two normally open contact circuits. When the coil is energised, both contacts close, allowing current to flow through their respective load circuits. Removing the coil supply causes both contacts to return to their normally open positions, interrupting the connected circuits.

Unlike the Finder 66.22.8.024.4001, which uses two changeover contacts, the 66.22.8.024.4300 is configured with two normally open contacts. This makes it particularly suitable for applications where two circuits need to be switched on together without requiring normally closed terminals. The AgSnO₂ contact material supports robust switching in applications involving appropriate power loads.

The relay also provides reinforced electrical insulation between the control coil and the contact circuits, with an 8 mm coil-to-contact creepage and clearance distance. Its PCB-mounted construction supports integration into industrial electronics, provided the PCB tracks, solder joints, electrical clearances, protective devices and thermal design are suitable for the actual operating current and load characteristics.

Typical Applications

• Industrial automation and electrical control systems.
• 24 V AC controlled power switching circuits.
• PCB-mounted power switching assemblies.
• Machinery requiring two normally open switching circuits.
• Industrial heating and temperature control equipment.
• Commercial ovens and catering equipment.
• Boiler, burner and heating control assemblies.
• Industrial washing machines and commercial appliances.
• HVAC and ventilation control equipment.
• Power management and electrical distribution control boards.
• Industrial process control and automated production equipment.
• OEM electronic control assemblies and machine building.