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Finder 6K.14.9.072.4818 – 6K Series Industrial contactors
Finder 6K.14.9.072.4818 is an industrial electromagnetic contactor featuring three normally open main contacts, auxiliary contact functionality, an 18 A AC-3 operational current rating, a 7.5 kW motor rating at 400 V AC and a 72 V DC operating coil for industrial motor control and automation applications.
£63.18
Why Choose the Finder 6K.14.9.072.4818 Industrial Contactor?
The Finder 6K.14.9.072.4818 is a robust and compact industrial electromagnetic contactor designed for reliable switching of three-phase motors and electrical loads in industrial automation and machinery control systems. As part of the Finder 6K Series industrial contactors, it provides dependable electrical switching for motor starters, control panels and industrial equipment requiring a 72 V DC control supply.
Featuring three normally open (NO) main power contacts and an auxiliary contact arrangement, the contactor enables effective three-phase motor switching while supporting additional control and signalling functions. Its silver tin oxide (AgSnO2) contact material is designed to withstand demanding electrical switching conditions, helping provide reliable operation in industrial environments.
With a rated operational current of 18 A at 400 V AC-3, a rated motor power of 7.5 kW at 400 V AC and a 72 V DC electromagnetic operating coil, the Finder 6K.14.9.072.4818 is suitable for industrial motor control systems, pumps, fans, conveyors and automated machinery. Its modular construction allows straightforward integration into industrial electrical control cabinets.
Key Advantages
- Reliable industrial electromagnetic contactor for three-phase motor control.
- 18 A AC-3 operational current rating for industrial motor switching applications.
- 7.5 kW motor power rating at 400 V AC for machinery and automation equipment.
- 72 V DC operating coil for compatible DC control circuits.
- Three normally open main contacts for switching three-phase electrical loads.
- Auxiliary contact functionality supports control signalling, interlocking and status indication.
- Silver tin oxide (AgSnO2) contacts provide dependable switching performance and resistance to contact welding.
- DC coil operating range of 57.6–79.2 V DC under specified operating conditions.
- 10 kA rated conditional short-circuit current when used with specified protective coordination.
- Compact modular design suitable for industrial electrical control panels.
- Compatible with selected Finder 6K Series thermal overload relays and auxiliary contact accessories.
Key Features
- Finder 6K Series industrial contactor.
- 6K.14 contactor type for industrial motor switching.
- Three normally open main power contacts.
- 18 A rated operational current at 400 V AC-3.
- 7.5 kW rated motor power at 400 V AC-3.
- 72 V DC electromagnetic operating coil.
- 57.6–79.2 V DC nominal coil operating range.
- Silver tin oxide (AgSnO2) contact material.
- 10 kA rated conditional short-circuit current with specified protection.
- 63 A gL/gG back-up fuse rating under the manufacturer's specified coordination conditions.
- 0.75–6 mm² conductor connection range.
- 0.8 Nm terminal tightening torque.
- 11 mm wire stripping length.
- Modular design for industrial control cabinet installation.
- Suitable for use with compatible Finder 6K Series motor protection accessories.
- Designed for industrial contactor applications in accordance with applicable IEC/EN 60947 standards.
Reliable Motor Control for Industrial Automation
Industrial contactors such as the Finder 6K.14.9.072.4818 use an electromagnetic mechanism to control electrical power circuits. When the 72 V DC operating coil is energised, the contactor closes its normally open main contacts, allowing electrical power to flow to the connected motor or load. When the coil is de-energised, the contacts return to their open position, disconnecting the controlled circuit.
The Finder 6K Series is developed for industrial installations requiring reliable switching performance and integration with electrical control systems. Its three normally open main contacts are suitable for controlling three-phase motors, while the auxiliary contact arrangement supports functions such as electrical interlocking, contactor status feedback and control circuit signalling.
The 72 V DC control coil makes this model suitable for industrial installations using a compatible DC control supply. The manufacturer's specified nominal operating range of 57.6–79.2 V DC provides guidance for selecting and designing the contactor control circuit.
With an 18 A AC-3 operational current rating and 7.5 kW motor power rating at 400 V AC, the contactor can be incorporated into motor starter assemblies for pumps, conveyors, fans, compressors and other industrial machinery. The connected motor's rated current, starting characteristics and switching duty must be considered during contactor selection.
The silver tin oxide contact construction supports dependable operation under repeated switching conditions. For complete motor protection, the contactor should be combined with appropriately selected overload protection and short-circuit protective devices. Compatible Finder 6K Series thermal overload relays and auxiliary contact accessories can provide additional functionality within industrial motor control assemblies.
Typical Applications
- Three-phase industrial motor starting and stopping circuits.
- Industrial pumps and water treatment systems.
- Ventilation fans and HVAC motor control equipment.
- Conveyor systems and material handling machinery.
- Industrial compressors and processing equipment.
- Machinery using 72 V DC control circuits.
- Electrical control panels and motor starter assemblies.
- Automated production lines and manufacturing machinery.
- PLC-controlled industrial automation systems with suitable interface circuitry.
- OEM machine building and electrical panel manufacturing.
- Industrial power distribution and electrical switching systems.
- Packaging machinery and automated material processing equipment.
Technical Specifications
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| Device Type | Contactor | |
|---|---|---|
| Coil Type | DC | |
| Coil Voltage Range | 60–72 V | |
| Manufacturer | Finder | |
| Series | 6K Series Industrial Contactors | |
| Model | 6K.14.9.072.4818 | |
| Product type | Industrial electromagnetic contactor | |
| Contactor type | 6K.14 | |
| Contact arrangement | Three normally open main contacts with auxiliary contact functionality | |
| Rated operational current (AC-3) | 18 A at 400 V AC | |
| Rated motor power (AC-3) | 7.5 kW at 400 V AC | |
| Rated operational current (AC-4) | 18 A at 400 V AC | |
| Rated motor power (AC-4) | 7.5 kW at 400 V AC | |
| Rated control supply voltage | 72 V DC | |
| Control coil type | DC electromagnetic coil | |
| Coil code | 9.072 | |
| Coil operating voltage range | 57.6–79.2 V DC | |
| Contact material | Silver tin oxide (AgSnO2) | |
| Rated conditional short-circuit current | 10 kA with specified protective coordination | |
| Back-up fuse | 63 A, gL/gG type, subject to specified coordination | |
| Minimum conductor cross-section | 0.75 mm² | |
| Maximum conductor cross-section | 6 mm² | |
| Terminal tightening torque | 0.8 Nm | |
| Wire stripping length | 11 mm | |
| Shock resistance (NO contacts) | 10 g | |
| Shock resistance (NC contacts) | 6 g | |
| Power loss per pole (AC-3, 400 V) | 0.35 W | |
| Mounting type | Industrial control panel mounting | |
| Product configuration | Modular industrial contactor | |
| Applicable standards | IEC/EN 60947 | |
| EAN | 8012823457253 |
Frequently Asked Questions
What is the Finder 6K.14.9.072.4818 used for?
The Finder 6K.14.9.072.4818 is an industrial electromagnetic contactor designed for switching three-phase motors and electrical loads in industrial automation, machinery control, pumps, fans, conveyors and motor starter assemblies.
What is the current rating of the Finder 6K.14.9.072.4818?
The contactor has a rated operational current of 18 A at 400 V AC under AC-3 motor switching conditions. The appropriate current rating must be selected according to the connected motor, switching duty and installation requirements.
What motor power can the Finder 6K.14.9.072.4818 control?
The contactor is rated for three-phase motor applications up to 7.5 kW at 400 V AC under the specified AC-3 operating conditions. Motor selection must also consider the motor's rated current and starting characteristics.
What control voltage does the Finder 6K.14.9.072.4818 require?
This model uses a 72 V DC electromagnetic operating coil. The manufacturer's specified nominal coil operating voltage range is 57.6–79.2 V DC, subject to the applicable operating conditions.
How many main contacts does the Finder 6K.14.9.072.4818 have?
The contactor has three normally open main power contacts for switching three-phase electrical loads. The 4818 configuration also provides auxiliary contact functionality for control and signalling applications.
What is the difference between AC-3 and AC-4 contactor ratings?
AC-3 applies to typical starting and stopping of squirrel-cage induction motors, while AC-4 covers more demanding operations such as plugging, inching and jogging. The Finder 6K.14.9.072.4818 is listed with an 18 A operational current rating at 400 V AC for both categories, but the correct contactor selection must consider the actual switching duty and expected electrical life.
Can the Finder 6K.14.9.072.4818 be used with a PLC?
Yes. The contactor can be incorporated into a PLC-controlled industrial automation system using an appropriately rated switching interface and a suitable 72 V DC control supply. The PLC output or interface relay must be capable of handling the contactor coil's electrical requirements.
What contact material is used in this Finder contactor?
The Finder 6K.14.9.072.4818 uses silver tin oxide (AgSnO2) contact material, which provides suitable electrical switching characteristics and resistance to contact welding in demanding industrial applications.
Can a thermal overload relay be used with this contactor?
Yes. The Finder 6K.14 Series supports compatible Finder 6K Series thermal overload protection accessories. The overload relay must be selected according to the connected motor's rated current and the required protection characteristics.
Does the Finder 6K.14.9.072.4818 provide motor overload protection?
No. The Finder 6K.14.9.072.4818 is primarily an electromagnetic switching device and does not independently provide complete motor overload protection. An appropriately rated overload relay or motor protection device should be installed where required by the application.
Trusted by Industrial Automation Professionals Worldwide
Finder 6K Series industrial contactors are designed to provide dependable electromagnetic switching for industrial motor control, electrical distribution and automation equipment. With robust silver tin oxide contacts, flexible auxiliary contact functionality and compatibility with motor protection accessories, the Finder 6K.14.9.072.4818 offers a practical solution for electrical engineers, panel builders and OEM machinery manufacturers requiring reliable 72 V DC-controlled industrial switching.
