Everlink Contactor 3P AC3 440V 40A 24V B7

The Schneider Electric TeSys Deca LC1D40AB7 contactor is a 3-pole power contactor with 3 normally open main contacts, designed for controlling motors and resistive loads in industrial, commercial, and HVAC electrical panels. It offers a rated operational current of 40 A in AC-3 category up to 440 V, supports motors up to 18.5 kW at 380-400 V, and includes a 24 V AC control coil at 50/60 Hz.

This reference stands out for using EverLink BTR power connectors, developed to provide a robust and stable conductor connection. It also integrates 1 normally open auxiliary contact and 1 normally closed auxiliary contact, allowing interlocking, signaling, and feedback functions without the immediate need to install an additional auxiliary block.

40 A TeSys Deca Contactor

The Schneider Electric LC1D40AB7 belongs to the TeSys D / TeSys Deca family and is mainly intended for electromechanical motor control.

In AC-3 category, commonly used for starting and stopping squirrel-cage motors, Schneider Electric specifies a rated operational current of 40 A up to 440 V AC and an ambient temperature of up to 60 °C.

Motor up to 18.5 kW at 400 V

The maximum permissible motor power depends on the supply voltage. Schneider Electric specifies for this reference:

• 220-230 V AC: up to 11 kW.
• 380-400 V AC: up to 18.5 kW.
• 415-440 V AC: up to 22 kW.
• 500 V AC: up to 22 kW.
• 660-690 V AC: up to 30 kW.

In a typical 400 V three-phase installation, the LC1D40AB7 can therefore switch motors up to 18.5 kW in AC-3 category, provided the motor rated current and starting conditions are compatible with the contactor.

Up to 60 A for AC-1 resistive loads

In addition to motor applications, the contactor can be used with non-inductive or slightly inductive loads. In AC-1 category, Schneider Electric specifies a rated operational current of up to 60 A at 440 V.

This capability allows it to be used, when properly sized, for switching electric heaters, heating systems, and other AC-1 compatible loads.

24 V AC 50/60 Hz control coil

The B7 suffix identifies a 24 V AC control coil at 50/60 Hz.

This voltage is common in automation circuits and allows the contactor to be operated by compatible devices such as:

• PLCs and control systems.
• Auxiliary relays.
• Pressure switches.
• Thermostats.
• Limit switches.
• HVAC controllers.
• Pushbuttons and control circuits.

When the coil is energized, the electromagnetic mechanism closes the three main contacts. When control power is removed, the contacts return to their open position.

3 normally open main contacts

The power circuit has a 3P configuration with 3 NO contacts, designed to connect and disconnect the three phases of a three-phase load simultaneously.

This configuration allows the LC1D40AB7 to be integrated into direct-on-line starters, machine automation systems, and HVAC equipment.

Integrated 1 NO + 1 NC auxiliary contacts

The contactor includes as standard:

• 1 normally open auxiliary contact.
• 1 normally closed auxiliary contact.

These auxiliary contacts can be used for:

• Electrical interlocking.
• Feedback to a PLC.
• Run/stop signaling.
• Interlocks.
• Pilot light control.
• Automation sequences.

The auxiliary contacts are mechanically linked in accordance with IEC 60947-5-1, and the NC contact has mirror contact function according to IEC 60947-4-1.

EverLink BTR power connection

One of the main features of the LC1D40AB7 is its EverLink BTR power connection system.

This screw connection system is designed to maintain stable pressure on the conductors and provide a reliable connection over time, even under the thermal variations typical of power circuits.

EverLink terminals allow connection of:

• 1 conductor: up to 35 mm².
• 2 conductors: up to 25 mm² per conductor.
• Tightening torque: 5 Nm for cross-sections from 1 to 25 mm².
• Tightening torque: 8 Nm for cross-sections from 25 to 35 mm².

Screw control terminals

The control circuit uses screw terminals independent from the power connections.

Depending on the type and number of conductors, it accepts cross-sections up to 4 mm², with an approximate tightening torque of 1.7 Nm.

Power circuit voltage up to 690 V AC

The LC1D40AB7 is designed to operate with a main circuit rated operational voltage of up to 690 V AC, within the conditions specified by Schneider Electric.

• Maximum operational voltage in AC: 690 V.
• Power circuit frequency: 25-400 Hz.
• Maximum operational voltage in DC: 300 V DC.
• Rated insulation voltage Ui: 690 V according to IEC 60947.
• Overvoltage category: III.

High making and breaking capacity

Schneider Electric specifies a rated making and breaking capacity of 800 A at 440 V for the main circuit in accordance with IEC 60947.

These ratings correspond to the electromechanical capability of the contactor and should not be confused with short-circuit protection. The circuit must include a properly sized protective device.

DIN rail or plate mounting

The contactor can be installed by:

• DIN rail mounting.
• Direct plate mounting.

This versatility makes it easy to integrate into modular electrical panels as well as industrial enclosures and machine automation systems.

Industrial and HVAC applications

Schneider Electric develops this range for industrial and HVAC applications. The LC1D40AB7 can be used, when properly sized, in equipment such as:

• Three-phase motors.
• Pumps.
• Fans.
• Compressors.
• HVAC equipment.
• Extraction systems.
• Industrial machinery.
• Conveyor systems.
• Electric heaters.
• Automation panels.
• Direct-on-line motor starters.

High mechanical and electrical durability

The Schneider Electric LC1D40AB7 is designed to withstand a high number of operations:

• Mechanical durability: up to 6 million cycles.
• Electrical durability: approximately 1.5 million cycles at 40 A in AC-3 and up to 440 V.
• Maximum operating frequency: up to 3,600 cycles per hour at a maximum ambient temperature of 60 °C.

Fast switching times

The electromagnetic mechanism offers short operating times:

• Closing time: approximately 12-26 ms.
• Opening time: approximately 4-19 ms.

These features make it suitable for automation systems requiring repetitive switching and fast response.

Coil consumption

The 24 V AC coil has different consumption values during pull-in and holding:

• Pick-up power at 50 Hz: approximately 160 VA.
• Pick-up power at 60 Hz: approximately 140 VA.
• Holding power at 50 Hz: approximately 15 VA.
• Holding power at 60 Hz: approximately 13 VA.
• Coil thermal dissipation: approximately 4-5 W.

These values should be considered when sizing transformers and auxiliary power circuits.

IP20 protection rating

The front face of the contactor has an IP20 protection rating in accordance with IEC 60529.

The LC1D40AB7 must be installed inside a panel or enclosure that provides the protection level required by the environmental conditions of the installation.

Wide temperature range

Schneider Electric specifies:

• Operating ambient temperature: -5 to 60 °C.
• Storage temperature: -60 to 80 °C.
• Operating altitude without thermal derating: up to 3,000 m.
• Pollution degree: 3.

Schneider Electric LC1D40AB7 dimensions

• Width: 55 mm.
• Height: 122 mm.
• Depth: 120 mm with cover.
• Approximate weight: 0.85 kg.

Its format provides a 40 A contactor with EverLink connections and integrated auxiliary contacts while maintaining compact dimensions for professional panels.

Technical characteristics of the Schneider Electric LC1D40AB7

• Brand: Schneider Electric.
• Reference: LC1D40AB7.
• Range: TeSys D / TeSys Deca.
• Type: power contactor.
• Application: motor and resistive load control.
• Number of poles: 3P.
• Main contacts: 3 NO.
• Auxiliary contacts: 1 NO + 1 NC.
• Rated current AC-3: 40 A up to 440 V.
• Rated current AC-1: 60 A up to 440 V.
• Power at 220-230 V AC-3: 11 kW.
• Power at 380-400 V AC-3: 18.5 kW.
• Power at 415-440 V AC-3: 22 kW.
• Power at 500 V AC-3: 22 kW.
• Power at 660-690 V AC-3: 30 kW.
• Power at 400 V AC-4: 9 kW.
• Coil voltage: 24 V AC.
• Coil frequency: 50/60 Hz.
• Maximum power circuit voltage: 690 V AC.
• Rated insulation voltage Ui: 690 V according to IEC.
• Utilization categories: AC-1, AC-3 and AC-4.
• Power connection: EverLink BTR.
• Control connection: screw terminals.
• Mounting: DIN rail or plate.
• Making capacity: 800 A at 440 V.
• Breaking capacity: 800 A at 440 V.
• Mechanical durability: up to 6 million cycles.
• Electrical durability: approximately 1.5 million cycles at 40 A AC-3.
• Maximum switching frequency: 3,600 cycles/h.
• Closing time: 12-26 ms.
• Opening time: 4-19 ms.
• Front protection rating: IP20.
• Operating temperature: -5 to 60 °C.
• Width: 55 mm.
• Height: 122 mm.
• Depth: 120 mm.
• Approximate weight: 0.85 kg.
• Main standards: IEC/EN 60947-4-1 and IEC/EN 60947-5-1.

EverLink contactor for motors up to 18.5 kW at 400 V

The Schneider Electric TeSys Deca LC1D40AB7 combines a 40 A AC-3 rating, motor power up to 18.5 kW at 400 V, a 24 V AC coil, and 1 NO + 1 NC auxiliary contacts with the EverLink power connection system.

Its high durability, DIN rail or plate mounting, and compatibility with the TeSys accessory range make it suitable for motor starters, pumps, fans, compressors, HVAC systems, and professional automation panels.

Important: the LC1D40AB7 is a switching device and does not replace overload and short-circuit protection. In motor applications, it must be combined with a motor protection circuit breaker, overload relay, and/or short-circuit protection correctly selected according to the motor current and installation conditions.