Description
The Schneider Electric (Square D) LC1D18U7 is a heavy-duty, non-reversing IEC contactor engineered for reliable switching in commercial and industrial HVAC and electrical systems. Featuring a 240VAC coil, this 3-pole contactor delivers 18 amps of switching capacity with the durability and precision that Schneider Electric’s TeSys D series is known for.
Designed for straightforward installation and long service life, the LC1D18U7 comes equipped with convenient screw terminals for secure wiring connections and includes both one normally open (NO) and one normally closed (NC) auxiliary contact — providing built-in flexibility for control circuit integration, interlocking, and status indication without the need for additional add-on blocks.
This contactor is an ideal choice for HVAC equipment, motor control centers, compressor panels, fan and pump applications, and a wide range of industrial load-switching tasks.
Key Features
- 240VAC coil voltage for compatibility with standard commercial control circuits
- 3-pole configuration for three-phase or multi-leg load switching
- 18-amp continuous current rating
- Non-reversing design for straightforward motor and load control
- Screw terminal connections for fast, secure field wiring
- Integrated 1 Normally Open (NO) auxiliary contact
- Integrated 1 Normally Closed (NC) auxiliary contact
- Part of the Schneider Electric TeSys D series — globally recognized for reliability
Specifications
- Brand: Schneider Electric (Square D)
- Model / SKU: LC1D18U7
- Coil Voltage: 240VAC
- Number of Poles: 3
- Current Rating: 18 Amps
- Contactor Type: Non-Reversing
- Terminal Type: Screw Terminals
- Auxiliary Contacts: 1 NO + 1 NC
Applications
- HVAC compressor and fan motor control
- Pump and blower motor switching
- Motor control centers (MCCs)
- Commercial and light industrial load switching
- Control panel integration requiring auxiliary contact outputs







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