66.22.8.110.4000 Finder Power relay 2pole 30A 110/115V

Why Choose the Finder 66.22.8.110.4000 Power Relay?

The Finder 66.22.8.110.4000 is a high-current 30 A electromagnetic power relay designed for dependable electrical switching in industrial automation, machinery control and commercial equipment. Featuring a 110 V AC operating coil and two changeover contacts (2 CO / DPDT), it allows a single AC control signal to operate two independent electrical switching circuits.

Part of the established Finder 66 Series, the 66.22.8.110.4000 combines silver tin oxide (AgSnO₂) contact material, direct printed circuit board (PCB) mounting and reinforced insulation between the coil and contacts. Its bifurcated PCB solder terminals provide a secure connection for appropriately designed electronic assemblies, while the dual changeover contact arrangement offers flexibility for switching, circuit selection and coordinated control functions.

With 30 A normally open contact ratings, 10 A normally closed contact ratings and a 250 V AC rated contact voltage, the Finder 66.22.8.110.4000 is suitable for a wide range of industrial electrical applications. Its 110 V AC coil makes it particularly useful in equipment employing higher-voltage AC control circuits, while its standard RT II flux-proof construction supports integration into PCB-mounted control equipment.

Key Advantages

• 30 A normally open contact rating for suitable high-current resistive loads.
• 110 V AC operating coil for compatible industrial AC control systems.
• Two changeover contacts (DPDT) for independent switching of two electrical circuits.
• 10 A normally closed contact rating for additional switching and control functions.
• 250 V AC rated contact voltage for industrial and commercial electrical equipment.
• 440 V AC maximum switching voltage, subject to the manufacturer's applicable load ratings.
• 7500 VA AC1 switching capacity for each normally open contact under specified conditions.
• Silver tin oxide (AgSnO₂) contacts for robust power switching performance.
• Direct PCB mounting for integration into electronic control assemblies.
• Bifurcated solder terminals for secure mechanical and electrical connections.
• Reinforced coil-to-contact insulation with 8 mm creepage and clearance distances.
• Monostable operation returns both changeover contacts to their normal positions when coil power is removed.

Key Features

• Finder 66 Series electromagnetic power relay.
• Type 66.22 PCB-mounted configuration.
• 110 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 resistive switching capacity for normally open contacts.
• 2500 VA AC1 resistive 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.
• 930 Ω nominal coil resistance.
• Approximately 32.6 mA nominal coil current.
• 88–126 V AC coil operating range at specified reference conditions.
• Reinforced coil-to-contact insulation with 6 kV impulse withstand capability.
• RT II flux-proof enclosure.
• 10 million mechanical operations under specified conditions.
• −40 to +70 °C ambient operating temperature range.

Reliable Dual-Pole Switching with 110 V AC Control

The Finder 66.22.8.110.4000 uses a 110 V AC electromagnetic coil to operate two independent changeover contact sets. When the coil is energised, each common contact transfers from its normally closed terminal to its normally open terminal. When the coil supply is removed, both contacts return to their de-energised positions, allowing predictable control of two electrical circuits from a single control signal.

The relay's 30 A normally open contacts, 10 A normally closed contacts and AgSnO₂ contact material make it suitable for demanding industrial switching applications. The DPDT configuration can be used for selecting between circuits, coordinating equipment functions or switching two separate loads. Because the normally open and normally closed contacts have different ratings, each circuit must be designed according to the contact used and the characteristics of its connected load.

A further advantage is the relay's reinforced insulation between the control coil and contacts, supported by 8 mm creepage and clearance distances and a 6 kV impulse withstand rating. Its RT II flux-proof construction is appropriate for suitable PCB soldering processes but should not be confused with an RT III wash-tight version. Appropriate PCB conductor sizing, protective devices, electrical clearances, coil control circuitry and thermal management should be included in the finished equipment design.

Typical Applications

• Industrial automation and electrical control systems.
• 110 V AC controlled power switching circuits.
• PCB-mounted industrial control assemblies.
• Machinery requiring two independent changeover switching functions.
• 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.
• Standby generators and electrical power management systems.
• Industrial lifting and material-handling equipment.
• OEM electronic control boards and machine-building applications.