Finder 6K.T1.0.000.0811 – 6K Series Industrial contactors

Why Choose the Finder 6K.T1.0.000.0811 Thermal Overload Relay?

The Finder 6K.T1.0.000.0811 is a reliable and adjustable thermal overload relay for three-phase motor protection, designed to protect industrial electric motors against sustained overload conditions. As part of the Finder 6K Series motor protection range, this relay is specifically developed for use with Finder 6K.13 and 6K.14 industrial contactors, providing an integrated solution for motor starters and industrial automation systems.

Featuring an adjustable current setting range of 8–11 A, the relay allows motor protection to be matched to the connected motor's rated current. Its Class 10A thermal trip characteristic provides overload protection suitable for many standard industrial motor starting applications. Integrated manual and automatic reset options, a stop button and auxiliary signalling contacts simplify operation, fault indication and maintenance.

With a maximum rated operational voltage of 690 V AC, IP20 protection rating and direct mounting compatibility with Finder 6K.13 and 6K.14 contactors, the Finder 6K.T1.0.000.0811 is suitable for industrial motor starter assemblies, pumps, fans, conveyors and manufacturing machinery. Its compact construction enables efficient installation inside electrical control panels while providing dependable motor overload protection.

Key Advantages

• Reliable thermal overload protection for industrial three-phase motors.
• Adjustable 8–11 A current setting range allows protection to be matched to the motor's rated current.
• Class 10A trip characteristic for standard motor starting and overload protection applications.
• Direct mounting compatibility with Finder 6K.13 and 6K.14 contactors.
• Manual and automatic reset options provide flexibility for different motor control requirements.
• Integrated stop button for local operation of the motor control circuit.
• One normally open (NO) and one normally closed (NC) auxiliary contact for signalling and control.
• Silver nickel (AgNi) contact material supports dependable auxiliary contact operation.
• 690 V AC maximum rated operational voltage for industrial electrical systems.
• IP20 protection rating suitable for installation inside appropriately protected electrical enclosures.
• Compact design with adjustable connection spacing for compatible Finder contactors.
• Helps reduce the risk of motor damage caused by sustained electrical overloads.

Key Features

• Finder 6K.T1 thermal overload relay series.
• 8–11 A adjustable motor current setting.
• Class 10A thermal overload trip classification.
• Maximum rated operational voltage of 690 V AC.
• Three-phase motor overload protection using a thermal trip mechanism.
• Manual or automatic reset selection following an overload trip.
• Integrated reset button for local fault resetting.
• Integrated stop button for control circuit operation.
• 1 NO + 1 NC auxiliary contact configuration.
• Silver nickel (AgNi) auxiliary contact material.
• Direct mounting onto Finder 6K.13 and 6K.14 contactors.
• Adjustable connection pin spacing for compatible contactor configurations.
• Screw-type cage clamp terminals for secure electrical connections.
• IP20 protection rating.
• Designed for motor overload protection applications in accordance with IEC/EN 60947-4-1.

Reliable Thermal Overload Protection for Industrial Motors

Thermal overload relays such as the Finder 6K.T1.0.000.0811 protect electric motors against sustained overcurrent conditions that can cause excessive heating and damage to motor windings. The relay monitors the current flowing through the motor circuit and uses a thermal trip mechanism to respond when the current exceeds the selected overload setting for a sufficient period.

The 8–11 A adjustable current range allows the relay to be configured according to the motor's rated full-load current. This flexibility makes it suitable for a range of industrial motors where the required overload setting falls within the relay's adjustment range. Correct adjustment is essential to ensure appropriate protection while avoiding unnecessary motor interruptions.

The Class 10A trip characteristic is designed for standard motor starting applications. Thermal overload protection uses an inverse-time response, meaning higher overload currents generally cause faster tripping. This helps protect motors against prolonged overloads while accommodating normal starting current for suitably selected applications.

When an overload condition occurs, the relay's normally closed auxiliary contact can interrupt the associated contactor control circuit, causing the contactor to disconnect the motor supply. The normally open auxiliary contact can be used to provide a trip indication to a control panel, alarm circuit or programmable logic controller.

The Finder 6K.T1 Series supports manual and automatic reset modes, allowing the motor control system to be configured according to operational and safety requirements. Manual reset requires deliberate intervention after an overload trip, while automatic reset permits the relay to reset after the thermal mechanism has recovered. Automatic reset should only be selected where unexpected motor restarting cannot create a hazard.

Designed for direct integration with Finder 6K.13 and 6K.14 industrial contactors, the relay includes adjustable connection spacing to accommodate compatible contactor configurations. This enables the creation of compact motor starter assemblies with coordinated switching and overload protection functions.

The Finder 6K.T1.0.000.0811 provides thermal overload protection rather than standalone short-circuit protection. It must therefore be installed with appropriately rated contactors and short-circuit protective devices, such as fuses or circuit breakers, selected according to the motor installation and applicable electrical standards.

Typical Applications

• Three-phase industrial motor overload protection.
• Direct-on-line (DOL) motor starter assemblies.
• Industrial pumps and water treatment systems.
• Ventilation fans and HVAC motor control equipment.
• Conveyor systems and material handling machinery.
• Industrial compressors and processing equipment.
• Manufacturing and production line machinery.
• Packaging and automated processing equipment.
• Electrical control panels and motor control cabinets.
• Motor starter assemblies using Finder 6K.13 and 6K.14 contactors.
• PLC-monitored motor protection and fault indication circuits.
• OEM industrial machinery and electrical panel manufacturing.