Finder 6K.14.8.024.4318 – 6K Series Industrial contactors

Why Choose the Finder 6K.14.8.024.4318 Industrial Contactor?

The Finder 6K.14.8.024.4318 is a compact, four-pole industrial electromagnetic contactor designed for dependable motor control, electrical load switching and industrial automation applications. Part of the Finder Series 6K, this model features a 24 V AC operating coil, four normally open main contacts and an 18 A AC-3 operational current rating, making it a practical choice for industrial control panels and machinery installations.

With an 18 A AC-3 rating at 400 V AC, a 7.5 kW three-phase motor power rating and a 32 A AC-1 resistive load rating, the Finder 6K.14.8.024.4318 provides versatile switching performance for appropriately selected electrical loads. Its 4 NO / 4PST-NO contact configuration enables four power circuits to be switched simultaneously, making it suitable for three-phase motor switching with an additional controlled pole and other multi-pole industrial applications.

Featuring silver tin oxide (AgSnO2) contacts, 35 mm DIN rail mounting and secure screw terminal connections, this Finder contactor combines robust electrical performance with convenient installation. Its compact construction, IP20 protection rating and compatibility with selected Finder Series 6K accessories make it suitable for pump controls, HVAC equipment, industrial machinery, electrical distribution panels and OEM automation systems.

Key Advantages

• 24 V AC nominal operating coil for compatible low-voltage industrial AC control circuits.
• Four normally open main contacts (4 NO) for simultaneous multi-pole power switching.
• 18 A AC-3 operational current rating for appropriately selected motor applications.
• 7.5 kW motor power rating at 400 V AC under specified AC-3 conditions.
• 32 A AC-1 resistive load rating for suitable non-inductive or slightly inductive loads.
• Silver tin oxide (AgSnO2) contacts offer dependable switching performance and resistance to contact welding.
• Four-pole contact arrangement provides flexibility for industrial electrical control designs.
• Compact contactor housing helps conserve space inside electrical control panels.
• 35 mm DIN rail mounting supports convenient installation and maintenance.
• IP20 protection rating for installation within appropriately designed electrical enclosures.
• Screw terminal connections provide secure electrical termination.
• Compatibility with Finder 6K.T1 thermal overload relays supports appropriately designed motor starter assemblies.

Key Features

• Finder Series 6K industrial contactor.
• Type 6K.14 four-pole construction.
• 24 V AC nominal coil voltage.
• AC coil operation at 50/60 Hz.
• Four normally open main power contacts.
• 4 NO / 4PST-NO switching configuration.
• 18 A AC-3 rated operational current.
• 32 A AC-1 rated operational current.
• 7.5 kW AC-3 motor rating at 400 V AC.
• Silver tin oxide (AgSnO2) contact material.
• 35 mm DIN rail compatibility according to EN 60715.
• Alternative panel mounting where permitted by the manufacturer's installation instructions.
• Screw terminal electrical connections.
• 0.75–6 mm² conductor connection range for suitable conductor types.
• 0.8 Nm terminal tightening torque.
• 11 mm conductor stripping length.
• IP20 protection rating.
• 10 kA rated conditional short-circuit current with specified protective devices.
• Optional auxiliary contact modules for additional control and signalling functions.
• Compatibility with Finder 6K.T1 thermal overload protection.

Reliable 24 V AC Control for Industrial Motor Switching

The Finder 6K.14.8.024.4318 enables a 24 V AC control circuit to switch industrial electrical loads through an electromagnetic contactor mechanism. When the operating coil is energised, all four normally open contacts close, allowing current to flow through the connected circuits. When the coil supply is removed, the contacts return to their normally open positions.

This makes the contactor suitable for industrial motor starters, remotely operated electrical equipment and automated switching systems. The 24 V AC coil is particularly useful in machinery control panels supplied by a suitable low-voltage control transformer. The coil supply must be correctly rated for the contactor's operating requirements, including its energisation and holding characteristics.

Understanding AC-3 and AC-1 Switching Ratings

The 18 A AC-3 rating applies to specified motor switching duties, including starting and switching off suitable squirrel-cage motors during normal operation. At 400 V AC, the Finder 6K.14.8.024.4318 has a corresponding 7.5 kW motor power rating. This makes it suitable for appropriately selected three-phase motors in pumps, fans, compressors and industrial machinery.

The separate 32 A AC-1 rating applies to suitable non-inductive or slightly inductive loads. These ratings are not interchangeable because motor starting currents and inductive switching conditions impose different stresses on electrical contacts. Contactor selection should account for the load current, utilisation category, switching frequency, ambient temperature and applicable electrical standards.

DIN Rail Installation and Motor Protection

The Finder 6K.14.8.024.4318 can be mounted onto a standard 35 mm DIN rail according to EN 60715 or installed using an approved panel mounting arrangement. Its screw terminals accommodate suitable conductors, while the IP20 protection rating makes the contactor appropriate for installation within a correctly designed industrial electrical enclosure.

For motor starter applications, the Finder 6K.T1 thermal overload relay range provides compatible overload protection options. Additional auxiliary contact modules can be used for control feedback, signalling and electrical interlocking where required. Correctly coordinated short-circuit protection is also essential: the Series 6K.14 has a 10 kA conditional short-circuit rating when used with specified protective arrangements, and the applicable fuse selection depends on the required coordination type.

Typical Applications

• Three-phase industrial motor starters.
• Industrial pumps and pumping stations.
• Heating, ventilation and air conditioning (HVAC) systems.
• Industrial compressors and compressed-air equipment.
• Ventilation fans and air-handling systems.
• Conveyor systems and material handling machinery.
• Industrial manufacturing and processing equipment.
• Automated production lines and machinery control.
• Electrical distribution and industrial power control panels.
• Power generation and backup generator auxiliary systems.
• OEM machinery using 24 V AC control circuits.
• Industrial automation applications requiring four normally open switching poles.