Finder 6K.13.9.024.4332 – 6K Series Industrial contactors

Why Choose the Finder 6K.13.9.024.4332 32A Industrial Contactor?

The Finder 6K.13.9.024.4332 is a robust 32 A three-pole industrial contactor from Finder's Series 6K range, designed for reliable switching in industrial motor control, electrical automation and machinery applications. Featuring a 24 V DC operating coil, three normally open main contacts (3PST-NO) and silver tin oxide (AgSnO2) contact material, this contactor offers a practical solution for controlling higher-power electrical loads from a low-voltage DC control circuit.

With a rated operational current of 32 A under AC-3 duty at 400 V AC and a corresponding 15 kW three-phase motor power rating, the Finder 6K.13.9.024.4332 is suitable for appropriately rated industrial motors. The 32 A version of the Series 6K.13 family also provides a 65 A AC-1 rating for suitable resistive or slightly inductive loads, allowing engineers to select the correct rating for different electrical switching duties.

The contactor combines a 45 mm-wide housing, 35 mm DIN rail mounting, IP20 protection and screw-terminal connections suitable for industrial power wiring. Its 24 V DC coil makes it particularly relevant to modern automation systems using compatible DC control supplies, while optional auxiliary contact modules provide additional flexibility for signalling, electrical interlocking and control feedback.

Key Advantages

• 24 V DC operating coil for compatible industrial automation and control systems.
• 32 A AC-3 rated operational current at 400 V AC for motor-control applications.
• 15 kW motor power rating at 400 V AC under AC-3 duty.
• 65 A AC-1 rated current for suitable resistive and slightly inductive loads.
• Three normally open main contacts for coordinated three-phase power switching.
• AgSnO2 contact material provides robust switching characteristics and resistance to contact welding.
• Compact 45 mm housing width helps optimise control-panel space.
• 35 mm DIN rail mounting supports straightforward installation in industrial cabinets.
• IP20 protection category for use inside suitably designed electrical enclosures.
• 1.5–25 mm² conductor connection range accommodates appropriately sized power wiring.
• Optional auxiliary contact modules support signalling, feedback and interlocking functions.
• Approximately 10 ms operate time for responsive electromagnetic switching.
• 10 million mechanical operations as a Series 6K.13 endurance reference.
• −40 to +70 °C operating temperature range under the manufacturer's specified conditions.

Key Features

• Finder Series 6K industrial power contactor.
• Manufacturer part number: 6K.13.9.024.4332.
• 24 V DC nominal control voltage.
• DC-operated electromagnetic coil.
• 3PST-NO (3 Form A) contact configuration.
• Three normally open main power contacts.
• 32 A AC-3 operational rating at 400 V AC.
• 15 kW AC-3 motor power rating at 400 V AC.
• 18.5 kW AC-3 motor power rating at 690 V AC.
• 65 A AC-1 operational rating for the specified resistive-load duty.
• Silver tin oxide (AgSnO2) main contacts.
• 35 mm DIN rail mounting according to EN 60715.
• 45 mm housing width.
• 74 mm housing height.
• IP20 protection category.
• Screw-terminal power connections.
• 1.5–25 mm² conductor connection range.
• 2.5 Nm terminal tightening torque.
• Optional normally open or normally closed auxiliary contact modules.
• Non-latching electromagnetic switching mechanism.

24 V DC-Controlled 32A Three-Phase Motor Switching

The Finder 6K.13.9.024.4332 uses a 24 V DC electromagnetic coil to control three normally open main power contacts. When the coil is energised within its specified operating voltage range, the contactor closes all three main contacts, allowing power to flow to the connected load. When the coil supply is removed, the non-latching mechanism releases and the contacts return to their normally open positions.

The 24 V DC control voltage makes this contactor suitable for integration into compatible industrial automation systems. It can be operated from an appropriately rated DC control circuit, provided that the switching device can supply the required coil current. When electronic outputs are used, suitable coil suppression may be necessary to protect against switching transients.

The 32 A AC-3 rating at 400 V AC is particularly important for three-phase motor applications. AC-3 duty covers the switching conditions associated with starting squirrel-cage motors and switching them off during normal running. The corresponding 15 kW motor rating makes this model suitable for consideration in industrial pumps, compressors, conveyors and other motor-driven machinery.

The Series 6K.13 32 A contactor also has a published 18.5 kW AC-3 motor rating at 690 V AC. Engineers must distinguish between motor ratings at different operating voltages and select the contactor using the actual motor nameplate current, starting characteristics, switching frequency and applicable utilisation category.

For suitable resistive or slightly inductive loads, the contactor provides a 65 A AC-1 rating. This higher AC-1 rating must not be interpreted as a 65 A motor-switching capability under AC-3 conditions. Motor starting currents and switching demands are different from those of resistive loads, making the correct utilisation category essential.

The AgSnO2 main contacts provide robust switching characteristics, while the 45 mm DIN rail housing supports compact electrical-panel construction. Where signalling, feedback or electrical interlocking is required, compatible Finder auxiliary contact modules may be fitted separately. Auxiliary contacts must be used within their own electrical ratings and must not be treated as additional 32 A power poles.

The contactor's IP20 protection, screw terminals and published 1.5–25 mm² conductor range support installation in industrial electrical cabinets. Appropriate overload protection, short-circuit protective-device coordination, conductor sizing and terminal tightening are essential to a safe and reliable motor-control system.

Typical Applications

• Three-phase motor starters for appropriately rated industrial motors.
• 24 V DC-controlled industrial motor-control panels.
• Factory automation and machinery control systems.
• Industrial pumps and pumping stations.
• Air compressors and compressed-air equipment.
• Conveyor and material-handling machinery.
• Industrial ventilation fans and air-handling systems.
• Heating, ventilation and air conditioning equipment.
• Electrical distribution and load-control assemblies.
• OEM industrial machinery and electrical equipment.
• Motor-control centres and industrial control cabinets.
• Automated production lines and process machinery.