Schneider LC1D18B7 TeSys Deca Contactor 3P 18 A 440V 24V AC 50/60Hz Coil

The Schneider Electric LC1D18B7 is a 3-pole TeSys Deca AC contactor rated 18 A (AC-3) at up to 440 V AC, operated by a 24 V AC 50/60 Hz coil. It covers usage categories AC-1, AC-3, AC-3e, and AC-4 for motor control and resistive load switching applications.

Technical specifications:

• Commercial reference: LC1D18B7
• Manufacturer: Schneider Electric
• EAN:
• Series / range: TeSys Deca
• Number of poles: 3P (3 NO)
• Rated current [Ie]: 18 A AC-3, 32 A AC-1 (at up to 440 V AC, below 60°C)
• Rated voltage [Ue]: up to 690 V AC 25-400 Hz / up to 300 V DC (power circuit)
• Control circuit voltage [Uc]: 24 V AC 50/60 Hz
• Motor power: 4 kW at 220-230 V, 7.5 kW at 380-400 V, 10 kW at 660-690 V (AC-3, 50/60 Hz)
• Breaking capacity: 300 A at 440 V conforming to IEC 60947
• Insulation voltage [Ui]: 690 V (IEC 60947-4-1), 600 V UL/CSA certified
• Impulse withstand voltage [Uimp]: 6 kV (IEC 60947)
• Mechanical endurance: 15 million cycles
• Electrical endurance: 1.65 million cycles at 18 A AC-3
• Auxiliary contact composition: 1 NO + 1 NC (mechanically linked 1 NO type)
• Power circuit terminals: screw, 1.5-6 mm²
• Control circuit terminals: screw, 1-4 mm²
• Tightening torque: 1.7 N.m
• Overvoltage category: III, pollution degree: 3

Features and benefits:

• Power circuit rated up to 690 V AC or 300 V DC for broad installation compatibility
• Low hold-in coil consumption of 7-7.5 VA at 50/60 Hz reduces continuous energy use
• 15 million mechanical cycles and 1.65 million electrical cycles ensure long service life in high-cycle environments
• Built-in 1 NO + 1 NC auxiliary contact enables direct feedback signalling without additional accessories

Applications:

• Direct-on-line motor starting in industrial machinery
• Pump, fan, and compressor control in HVAC and building services
• Motor control centres and automation panels in manufacturing plants

Compliant with IEC 60947-4-1 and IEC 60947-1. Part of the Schneider Electric TeSys Deca range.

Also known as: Schneider LC1D18B7, Schneider Electric LC1D18B7, TeSys D contactor 18A, LC1D18B7 24V AC coil contactor.