22.44.0.120.4717 Finder contactor 4 pole 40A AC/DC 110/125V NO

Why Choose the Finder 22.44.0.120.4717 Modular Installation Contactor?

The Finder 22.44.0.120.4717 is a high-performance 40 A four-pole modular installation contactor designed for reliable switching of electrical loads in commercial buildings, industrial installations and automated control systems. Part of the Finder Series 22 modular contactor range, this electromechanical device features a 110–120 V AC / 110 V DC control coil and a 3 normally open (NO) + 1 normally closed (NC) contact arrangement with a dedicated mirror-contact function.

Engineered for continuous-duty applications, the Finder 22.44.0.120.4717 combines substantial switching capacity with a compact DIN rail-mounted design. Its 40 A rated contact current, 176 A maximum peak current and AgSnO₂ contact material make it suitable for demanding electrical switching applications, including compatible lighting, heating and motor loads.

The contactor incorporates a low-noise AC/DC coil with integrated varistor protection, reinforced insulation between the coil and contacts, and a mechanical contact-position indicator. Its 3 NO + 1 NC mirror-contact configuration provides useful feedback for appropriately designed control and safety-monitoring circuits, while standard 35 mm DIN rail mounting simplifies installation in electrical distribution boards and industrial control panels.

Key Advantages

• 40 A modular installation contactor for reliable electrical power switching.
• 110–120 V AC / 110 V DC control coil for compatible AC and DC control supplies.
• Four-pole configuration with 3 NO + 1 NC contacts for three-phase switching and contact-state feedback.
• Mirror-contact design supports monitoring of the main power contacts.
• 176 A maximum peak current for suitable high-inrush switching applications.
• AgSnO₂ contacts provide durable switching performance.
• Low-noise coil operation makes the contactor suitable for building services installations.
• Integrated varistor protection helps limit switching transients from the operating coil.
• Reinforced insulation separates the control circuit from the switched contacts.
• Mechanical contact-position indicator assists with inspection and troubleshooting.
• Continuous-duty design supports applications requiring prolonged energisation.
• DIN rail mounting and screw terminals simplify installation and maintenance.

Key Features

• Finder Series 22 modular installation contactor.
• 40 A rated contact current.
• 176 A maximum peak contact current.
• 110–120 V AC, 50/60 Hz, or 110 V DC control supply.
• Four-pole contact arrangement: 3 NO + 1 NC.
• Mirror-contact version identified by the 4717 contact configuration.
• 400 V AC rated contact voltage.
• 480 V AC maximum switching voltage.
• 26,000 VA rated AC-1 / AC-7a load capacity under specified conditions.
• 22 A AC-3 / AC-7b rated current at 400 V AC.
• 11 kW three-phase motor rating at 400–440 V AC.
• 6 VA / 6 W nominal coil consumption.
• Double-break contact construction with a contact gap of at least 3 mm.
• AgSnO₂ silver tin oxide contacts.
• Integrated coil varistor for transient suppression.
• Mechanical contact-position indication.
• 20 ms operate time and 45 ms release time.
• IP20 protection rating.
• 35 mm DIN rail mounting in accordance with EN 60715.

Mirror-Contact Monitoring and Reliable Three-Phase Switching

The Finder 22.44.0.120.4717 incorporates a 3 NO + 1 NC mirror-contact arrangement that provides three normally open power contacts and a normally closed monitoring contact. When the control coil is energised, the three normally open contacts close to supply the connected loads, while the normally closed contact opens. When the coil is de-energised, the contacts return to their normal positions.

The mirror-contact function is particularly valuable in applications requiring feedback about the state of the main contactor contacts. It provides a mechanically defined relationship between the normally open power contacts and the normally closed monitoring contact, supporting fault detection when used with an appropriately designed external monitoring or safety-control system. The contactor itself is not a standalone safety controller.

The 110–120 V AC / 110 V DC low-noise coil incorporates varistor protection to help reduce electrical transients during switching. Combined with reinforced insulation, double-break contacts and continuous-duty construction, these features support reliable operation in industrial automation, electrical distribution and building services applications.

Typical Applications

• Industrial electrical distribution boards.
• Commercial building electrical installations.
• Three-phase power switching and control.
• Motor control applications within specified utilisation ratings.
• Building management and automation systems.
• Electrical heating and ventilation control.
• Commercial and industrial lighting systems.
• Industrial machinery control panels.
• Safety-related circuits requiring monitored contactor feedback.
• Electrical load switching using 110–120 V AC control circuits.
• Compatible automation systems using 110 V DC control supplies.
• Power switching installations requiring three normally open contacts and one monitoring contact.