Contactor 9A 1 NO/1 NC 48V 50-60HZ

The Schneider Electric TeSys Deca LC1D09E7 contactor is a power electromagnetic contactor designed for motor control and resistive loads. It features 3 poles with 3 normally open main contacts, a rated current of 9 A in AC-3 and AC-3e categories up to 440 V, and a 48 V AC control coil at 50/60 Hz. For three-phase motors, it supports power ratings of up to 4 kW at 380-400 V and includes as standard 1 NO auxiliary contact + 1 NC auxiliary contact.

The LC1D09E7 reference belongs to Schneider Electric's TeSys Deca family and uses screw terminals for both the power circuit and the control circuit. Its compact format, DIN rail or plate mounting, and wide range of accessories make it suitable for motor starters, automation panels, HVAC systems, pumps, fans, and numerous industrial applications.

9 A three-pole contactor for motor control

The LC1D09E7 has 3 normally open main poles (3 NO), responsible for simultaneously connecting and disconnecting the three phases of a three-phase load.

In AC-3/AC-3e utilization category, Schneider Electric specifies a rated operational current of 9 A up to 440 V AC at an ambient temperature below 60 °C.

AC-3 category mainly applies to squirrel-cage motor switching, where the contactor closes during starting and opens when the motor is already running under normal conditions.

4 kW motor power at 400 V

The permissible motor power depends on the supply voltage. Schneider Electric specifies for the LC1D09E7 in AC-3/AC-3e category:

• 220-230 V AC: 2.2 kW.
• 380-400 V AC: 4 kW.
• 415-440 V AC: 4 kW.
• 500 V AC: 5.5 kW.
• 660-690 V AC: 5.5 kW.

On a typical 400 V three-phase network, the contactor is therefore rated for motors up to 4 kW, provided the motor rated current, switching frequency, and service conditions are compatible.

48 V AC 50/60 Hz control coil

The E7 suffix identifies a 48 V AC control coil at 50/60 Hz in this reference.

When the coil receives the control voltage, the electromagnetic field causes the three main contacts to close. When power is removed, the mechanism returns the contacts to the open position.

The coil complies with the operating limits defined by Schneider Electric for this family:

• At 50 Hz: operation approximately between 0.8 and 1.1 × Uc.
• At 60 Hz: operation approximately between 0.85 and 1.1 × Uc.
• Drop-out voltage: approximately 0.3-0.6 × Uc.

1 NO + 1 NC auxiliary contacts

The LC1D09E7 includes as standard 1 normally open auxiliary contact and 1 normally closed auxiliary contact.

These contacts are not part of the three main power poles and are intended for signaling, automation, and interlocking circuits.

The complete configuration is:

• Main contacts: 3 NO.
• Integrated auxiliary contacts: 1 NO + 1 NC.

The auxiliary contacts can be used for functions such as:

• Contactor self-holding.
• Status feedback to a PLC.
• Run indication.
• Electrical interlocking.
• Pilot light control.
• Automation sequences.

Mechanically linked auxiliary contacts

Schneider Electric specifies that the 1 NO + 1 NC auxiliary contacts are mechanically linked in accordance with IEC 60947-5-1.

In addition, the normally closed contact has a mirror contact characteristic in accordance with IEC 60947-4-1, a feature especially useful in certain monitoring and safety circuits when the machine's overall design requires it.

25 A for AC-1 loads

In addition to motor control, the LC1D09E7 can be used for certain resistive or slightly inductive loads.

In AC-1 category, Schneider Electric specifies a rated operational current of up to 25 A at voltages up to 440 V and at an ambient temperature below 60 °C.

The 25 A AC-1 value should not be confused with the 9 A AC-3 rating: each category represents different load and switching conditions.

Utilization categories AC-1, AC-3, AC-3e and AC-4

The contactor is specified for different utilization categories:

• AC-1: resistive or slightly inductive loads.
• AC-3: normal starting and stopping of squirrel-cage motors.
• AC-3e: updated category for certain motor control applications.
• AC-4: especially demanding motor switching, such as inching or certain reversing operations.

In AC-4 at 400 V, Schneider Electric specifies a motor power of approximately 2.2 kW.

Power circuit up to 690 V AC

The main circuit is designed to operate with:

• Rated operational voltage: up to 690 V AC.
• Power circuit frequency: 25-400 Hz.
• Maximum DC voltage: up to 300 V DC depending on configuration.
• Rated insulation voltage Ui: 690 V according to IEC.
• Rated impulse withstand voltage Uimp: 6 kV.
• Overvoltage category: III.

Making and breaking capacity

Schneider Electric specifies for the main circuit a rated making capacity of 250 A at 440 V and a rated breaking capacity of 250 A at 440 V in accordance with IEC 60947.

These ratings correspond to contactor operation and do not constitute a short-circuit breaking capacity equivalent to that of a circuit breaker.

The installation must include properly coordinated external short-circuit protection.

Short-time withstand current

For the power circuit, Schneider Electric indicates short-time withstand current values such as:

• 210 A for 1 second.
• 105 A for 10 seconds.
• 61 A for 1 minute.
• 30 A for 10 minutes.

These data are useful when studying coordination with protection devices and other starter components.

Screw connection terminals

The LC1D09E7 uses screw terminals for the power and control circuits, providing a conventional and robust connection.

Depending on the type and number of conductors, it supports connection configurations of approximately:

• Flexible conductor without ferrule: 1-4 mm².
• Flexible conductor with ferrule: up to 4 mm² for one conductor and up to 2.5 mm² for certain double connections.
• Rigid conductor: up to 4 mm².

Exact cross-sections and tightening torque must be respected according to the conductor type and Schneider Electric instructions.

DIN rail or plate mounting

The contactor can be installed using:

• DIN rail.
• Direct plate mounting.

This flexibility makes it suitable for both small automation panels and industrial electrical cabinets.

Compact 45 mm format

The Schneider Electric LC1D09E7 has compact dimensions:

• Width: 45 mm.
• Height: 77 mm.
• Depth: 86 mm.
• Weight: approximately 0.32 kg.

Its width of only 45 mm makes it easy to install multiple contactors in panels where available space is limited.

High mechanical durability

Schneider Electric specifies a mechanical durability of up to 15 million cycles.

For AC-3 applications at 9 A and up to 440 V, the indicated electrical durability is approximately 2 million cycles.

In AC-1 at 25 A, electrical durability is approximately 0.6 million cycles.

Up to 3,600 operations per hour

The TeSys Deca LC1D09E7 supports a maximum operating frequency of up to 3,600 cycles per hour at 60 °C, within the utilization conditions established by Schneider Electric.

This high switching capacity makes it suitable for numerous repetitive automation processes.

Opening and closing times

The electromagnetic mechanism has short operating times:

• Closing time: approximately 12-22 ms.
• Opening time: approximately 4-19 ms.

These times facilitate integration into automation systems where fast and repeatable response is required.

Coil consumption

The AC coil has:

• Inrush consumption at 50 Hz: approximately 70 VA.
• Inrush consumption at 60 Hz: approximately 70 VA.
• Holding consumption at 50 Hz: approximately 7 VA.
• Holding consumption at 60 Hz: approximately 7.5 VA.
• Thermal dissipation: approximately 2-3 W.

These values are relevant for correctly sizing transformers and control circuit power supplies when several contactors are used.

IP20 front protection rating

The contactor has IP20 front protection under the conditions established by the manufacturer.

It is intended to be installed inside an enclosure or cabinet that provides the environmental protection level required by the installation.

Applications of the Schneider Electric LC1D09E7

The 9 A TeSys Deca contactor can be integrated into numerous automation and control applications:

• Three-phase motors.
• Pumps.
• Fans.
• Compressors.
• HVAC equipment.
• Small industrial machinery.
• Conveyor systems.
• Automation panels.
• Direct-on-line motor starters.
• Electric heating systems with compatible loads.
• Industrial control circuits.

Compatible with TeSys accessories

The LC1D09E7 is part of the TeSys platform and can be combined with different compatible accessories to create complete control and protection solutions.

These include:

• Thermal overload relays.
• Auxiliary contact blocks.
• Timers.
• Coil surge suppressors.
• Mechanical interlocks.
• Connection accessories.
• Compatible TeSys motor circuit breakers.

The specific reference for each accessory must be selected according to current, voltage, required function, and Schneider Electric compatibility tables.

Technical characteristics of the Schneider Electric LC1D09E7

• Brand: Schneider Electric.
• Reference: LC1D09E7.
• Range: TeSys Deca.
• Short name: LC1D.
• Type: power contactor.
• Applications: motor control and resistive loads.
• Number of poles: 3P.
• Main contacts: 3 NO.
• Integrated auxiliary contacts: 1 NO + 1 NC.
• AC-3/AC-3e current: 9 A up to 440 V.
• AC-1 current: 25 A up to 440 V.
• AC-3 power at 220-230 V: 2.2 kW.
• AC-3 power at 380-400 V: 4 kW.
• AC-3 power at 415-440 V: 4 kW.
• AC-3 power at 500 V: 5.5 kW.
• AC-3 power at 660-690 V: 5.5 kW.
• AC-4 power at 400 V: 2.2 kW.
• Coil voltage: 48 V AC.
• Coil frequency: 50/60 Hz.
• Maximum power circuit voltage: 690 V AC.
• Maximum DC voltage: 300 V DC.
• Rated insulation voltage Ui: 690 V.
• Rated impulse withstand voltage Uimp: 6 kV.
• Overvoltage category: III.
• Utilization categories: AC-1, AC-3, AC-3e and AC-4.
• Making capacity: 250 A at 440 V.
• Breaking capacity: 250 A at 440 V.
• Terminals: screw terminals.
• Mounting: DIN rail or plate.
• Width: 45 mm.
• Height: 77 mm.
• Depth: 86 mm.
• Weight: approximately 0.32 kg.
• Mechanical durability: up to 15 million cycles.
• Electrical durability AC-3: approximately 2 million cycles at 9 A.
• Maximum switching frequency: 3,600 cycles/h.
• Closing time: 12-22 ms.
• Opening time: 4-19 ms.
• Inrush consumption: approximately 70 VA.
• Holding consumption: 7-7.5 VA.
• Coil dissipation: approximately 2-3 W.
• Front protection rating: IP20.
• Main standards: IEC/EN 60947-4-1 and IEC/EN 60947-5-1.
• EAN: 3389110348736.

Compact solution for motors up to 4 kW at 400 V

The Schneider Electric TeSys Deca LC1D09E7 combines a 9 A AC-3/AC-3e rating, motor capacity up to 4 kW at 400 V, and a 48 V AC coil in a compact 45 mm wide contactor. The integrated 1 NO + 1 NC auxiliaries simplify the creation of interlocking, signaling, and automation circuits.

Its high mechanical life, screw terminals, DIN rail or plate mounting, and compatibility with TeSys accessories make it suitable for motor starters, pumps, fans, HVAC, and machinery.

Important: the LC1D09E7 is a switching and control device. It does not provide overload or short-circuit protection by itself. In motor applications, it must be combined with a motor circuit breaker, thermal overload relay, fuses, or a properly rated circuit breaker according to the motor and installation characteristics.