Square D LC1D18U7 Contactor – 18A – 3-Pole / IEC – 240V AC Coil – Up to 100kA SCCR – DIN Rail / Panel Mount – TeSys D Series

The Square D LC1D18U7 is an 18A, 3-pole IEC contactor from the Schneider Electric TeSys D Series. It is designed for integration into control systems and can be used to create motor starters for a wide range of applications.

The contactor supports inductive motor loads up to 150 full-load amps and resistive loads up to 200A, with applicable motor horsepower ratings for both three-phase and single-phase systems. It is supplied with a 240V AC, 50/60Hz coil and includes one normally open (NO) and one normally closed (NC) auxiliary contact as standard.

The LC1D18U7 can be DIN rail mounted or mounted directly to a panel and uses screw-clamp terminals for load and auxiliary connections.

Specifications:

• Manufacturer: Square D / Schneider Electric
• Product Type: IEC Contactor
• Product Family: TeSys D
• Series: TeSys D
• Catalog No.: LC1D18U7
• Current Rating: 18A Inductive
• Number of Poles: 3-Pole
• Contactor Type: IEC
• Coil Voltage: 240V AC
• Coil Frequency: 50/60Hz
• Mounting Type: DIN Rail or Direct Panel Mount
• Auxiliary Contacts: 1 NO + 1 NC
• NC Auxiliary Contact: Mirror Certified
• Terminal Type: Screw Clamp
• Three-Phase Motor Rating: 5 HP @ 200–208V AC; 5 HP @ 240V AC; 10 HP @ 480V AC; 15 HP @ 600V AC
• Single-Phase Motor Rating: 1 HP @ 115V AC; 3 HP @ 240V AC
• Inductive Motor Applications: Up to 150 FLA
• Resistive Load Rating: Up to 200A
• SCCR: Up to 85kA with a compatible 480V AC, 60A circuit breaker
• SCCR: Up to 100kA with a compatible 600V AC, 40A Class J or CC fuse
• Dimensions (H × W × D): 3.03 × 1.77 × 3.39 in
• Weight: 0.73 lb
• Application: Motor Starters and Control Systems

Part Numbers & Identification:

• Manufacturer Part Number (MPN): LC1D18U7
• Catalog Number: LC1D18U7
• Model: LC1D18U7
• Brand: Square D
• Manufacturer: Schneider Electric
• Product Type: IEC Contactor
• Product Family: TeSys D
• Series: TeSys D
• Contactor Configuration: 3-Pole, 18A
• Coil: 240V AC, 50/60Hz
• UPC:78590120711 

Compatibility:

Designed for compatible Schneider Electric / Square D TeSys D control-system and motor-starter applications. The LC1D18U7 supports DIN rail or direct panel mounting and provides built-in NO and NC auxiliary contacts for control applications.

For short-circuit coordination, the specified SCCR values depend on the upstream protective device. The contactor can achieve up to 85kA SCCR with a compatible 480V AC, 60A circuit breaker or up to 100kA SCCR with a compatible 600V AC, 40A Class J or CC fuse under the specified conditions.

Always verify the motor load, voltage, phase, horsepower, control-circuit requirements, mounting arrangement, auxiliary-contact requirements, and upstream overcurrent protection before installation.

Certifications:

• UL Certified
• CSA Certified
• IEC Certified
• CCC Certified
• EAC Certified
• Marine Standards Certified
• RoHS Compliant
• REACH Compliant
• Green Premium Product

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