Schneider LC1D18M7 Contactor, TeSys Deca 3P 440V 18A 220VAC 50/60Hz 3NO

The Schneider Electric LC1D18M7 is a 3-pole TeSys Deca contactor rated at 18 A under AC-3 at up to 440 V AC, with a 220 V AC 50/60 Hz control coil. It is designed for motor control and resistive load switching across AC-1, AC-3, AC-3e, and AC-4 usage categories on power circuits up to 690 V AC.

Technical specifications:

• Commercial reference: LC1D18M7
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Deca
• Number of poles: 3P (3 NO)
• Rated current [Ie]: 18 A AC-3 / 18 A AC-3e / 32 A AC-1, all at <= 440 V AC (<60°C)
• Rated voltage [Ue]: <= 690 V AC (25-400 Hz) / <= 300 V DC
• Control circuit voltage [Uc]: 220 V AC 50/60 Hz
• Usage categories: AC-1, AC-3, AC-3e, AC-4
• Motor power (AC-3): 7.5 kW at 380-400 V / 9 kW at 415-440 V / 10 kW at 500-690 V AC
• Rated breaking capacity: 300 A at 440 V (IEC 60947)
• Rated insulation voltage [Ui]: 690 V (IEC 60947-4-1); 600 V UL/CSA
• Rated impulse withstand voltage [Uimp]: 6 kV (IEC 60947)
• Auxiliary contacts: 1 NO + 1 NC, mechanically linked
• Thermal current [Ith]: 32 A power circuit at 60°C
• Mechanical durability: 15 million cycles
• Electrical durability: 1.65 million cycles (AC-3, 18 A, <= 440 V)
• Operating time: 12-22 ms closing / 4-19 ms opening
• Maximum operating rate: 3600 cycles/h at 60°C
• Coil inrush power: 70 VA at 50/60 Hz (cos phi 0.75)
• Coil holding power: 7 VA at 50 Hz / 7.5 VA at 60 Hz (cos phi 0.3)
• Overvoltage category: III, Pollution degree: 3
• Power circuit connection: Screw terminals, 1.5-6 mm²
• Control circuit connection: Screw terminals, 1-4 mm²
• Tightening torque: 1.7 N.m

Features and benefits:

• 3 NO main contacts with an integrated mechanically linked 1 NO + 1 NC auxiliary contact block for interlocking and feedback signaling
• Covers AC-1, AC-3, AC-3e, and AC-4 usage categories, supporting both motor starting and resistive load applications in a single device
• 15 million mechanical cycles and 1.65 million electrical cycles (AC-3) rated durability for extended service life in demanding installations
• Fast and consistent switching - 12 to 22 ms closing and 4 to 19 ms opening - for responsive motor control
• 6 kV rated impulse withstand voltage and overvoltage category III provide robust protection against transient surges

Applications:

• Three-phase motor starting and stopping for pumps, fans, compressors, and HVAC systems
• Motor control centers and industrial automation panels up to 10 kW at 660-690 V AC
• Resistive load switching in commercial and industrial power distribution
• Conveyor, mixer, and agitator motor control in manufacturing environments

Compliant with IEC 60947-4-1 and IEC 60947-5-1; UL and CSA certified at 600 V. Part of the Schneider Electric TeSys Deca range.

Also known as: Schneider LC1D18M7, Schneider Electric LC1D18M7, TeSys D 18A contactor, AC-3 3-pole contactor 220V coil.