66.22.8.024.4001 Finder Power relay 2pole 30A 24V

Why Choose the Finder 66.22.8.024.4001 Power Relay?

The Finder 66.22.8.024.4001 is a heavy-duty 30 A electromagnetic power relay designed for reliable switching in industrial automation, electrical control systems and commercial equipment. Featuring a 24 V AC operating coil and two changeover (DPDT / 2 CO) contacts, it enables one control signal to operate two independent switching circuits.

Part of the established Finder 66 Series, this relay combines silver tin oxide (AgSnO₂) contact material, direct printed circuit board (PCB) mounting and RT III wash-tight construction. Its bifurcated PCB solder terminals are designed for secure installation in electronic control assemblies, while the two changeover contact sets provide flexibility for power switching, equipment control and circuit selection.

The Finder 66.22.8.024.4001 provides a 30 A normally open (NO) contact rating and a 10 A normally closed (NC) contact rating, with a rated contact voltage of 250 V AC. Reinforced insulation between the coil and contacts, including 8 mm creepage and clearance distances, makes this relay particularly suitable for equipment designs requiring robust separation between control and load circuits.

Key Advantages

• 30 A normally open contact rating for suitable high-current resistive loads.
• 24 V AC operating coil for compatible industrial and commercial control systems.
• Two changeover contacts (DPDT) for controlling two independent electrical circuits.
• 10 A normally closed contact rating for additional switching and control functions.
• 250 V AC rated contact voltage with a maximum AC switching voltage of 440 V AC.
• 7500 VA AC1 switching capacity for each normally open contact under specified conditions.
• Silver tin oxide (AgSnO₂) contacts for robust switching performance.
• RT III wash-tight enclosure suitable for compatible PCB assembly cleaning processes.
• Reinforced coil-to-contact insulation with 8 mm creepage and clearance.
• 6 kV impulse withstand rating between the coil and contacts.
• Direct PCB mounting with bifurcated solder terminals.
• Monostable operation automatically returns both changeover contacts to their normal positions when the coil is de-energised.

Key Features

• Finder 66 Series electromagnetic power relay.
• Type 66.22 PCB-mounted construction.
• 24 V AC nominal coil voltage.
• 50/60 Hz AC coil operation.
• Two changeover contacts (2 CO / DPDT).
• 30 A rated current for normally open contacts.
• 10 A rated current for normally closed contacts.
• 250 V AC rated contact voltage.
• 440 V AC maximum switching voltage.
• 7500 VA AC1 switching capacity for normally open contacts.
• 2500 VA AC1 switching capacity for normally closed contacts.
• 1200 VA AC15 switching capacity for normally open contacts at 230 V AC.
• 1.5 kW single-phase motor rating for normally open contacts at 230 V AC.
• Silver tin oxide (AgSnO₂) contact material.
• 3.6 VA nominal AC coil consumption at 50 Hz.
• 19.2–26.4 V AC specified coil operating range.
• RT III wash-tight protection.
• Reinforced coil-to-contact insulation.
• 8 ms operate time and 15 ms release time.
• 10 million mechanical operations under specified conditions.
• −40 to +70 °C ambient operating temperature range.

Reliable Dual-Pole Switching with 24 V AC Control

The Finder 66.22.8.024.4001 enables a 24 V AC control signal to operate two separate changeover contact sets. When the electromagnetic coil is energised, each common contact transfers from its normally closed terminal to its normally open terminal. When coil power is removed, both contacts return to their original positions. This provides predictable switching for equipment requiring two coordinated control functions.

The relay's 30 A normally open contacts, 10 A normally closed contacts and AgSnO₂ contact material make it suitable for a range of industrial switching duties. Its DPDT arrangement can be used for selecting between circuits, controlling two loads or providing complementary operating states. The NO and NC contacts have different current ratings, so each connected circuit must be designed around the rating of the contact actually used.

Reinforced insulation between the coil and contacts, together with 8 mm creepage and clearance distances, helps support electrical separation between the control and load circuits. The RT III wash-tight enclosure is also beneficial for compatible PCB production processes. Suitable contact protection, PCB conductor sizing, thermal management, electrical clearances and coil control circuitry should be incorporated into the finished equipment.

Typical Applications

• Industrial automation and electrical control systems.
• 24 V AC controlled power switching circuits.
• PCB-mounted electrical control assemblies.
• Machinery requiring two independent changeover contact sets.
• Industrial heating and temperature control equipment.
• Commercial ovens and catering equipment.
• Boiler, burner and furnace control assemblies.
• Industrial washing machines and commercial appliances.
• Single-phase motor control within the applicable contact ratings.
• HVAC and air-conditioning control equipment.
• Backup generators and electrical power management systems.
• Industrial lifting, hoisting and material-handling equipment.
• OEM electronic control boards and industrial machine building.