Schneider Electric LC1D18 Contactor

Schneider Electric LC1D18 Contactor – TeSys Deca Series

Overview

The Schneider Electric LC1D18 is a powerful 3-pole contactor from the TeSys Deca Series (formerly TeSys D), designed for industrial motor control and high-demand power applications.
With a current rating of 18 A (AC-3) and a power rating up to 7.5 kW / 10 HP at 400 V, the LC1D18 provides robust, reliable control for electric motors, pumps, compressors, and automation systems.

Built to meet international standards, including IEC 60947, UL 60947, and CSA C22.2, the LC1D18 delivers superior performance in demanding three-phase power environments while maintaining the same compact, DIN-rail design as the LC1D09 and LC1D12 models.

🔑 Key Features

• Rated Current (AC-3): 18 A

• Power Rating: up to 7.5 kW (10 HP at 400 V 3-phase)

• Operating Coil Voltage Options: 24 V, 48 V, 110 V, 230 V (AC or DC voltage versions)

• Coil Type: Low-inrush electromagnetic power relay coil for efficient switching

• Contact Type: 3 main poles + 1 auxiliary (NO or NC)

• Mounting: Quick DIN rail or screw mount

• Terminals: Rugged screw terminals for secure wiring

• Standards: UL 60947, IEC 60947, CSA C22.2, RoHS Compliant

• UNSPSC: 39121529

⚡ Applications

The LC1D18 TeSys Deca contactor is ideal for:

• Three-phase electric motors (up to 7.5 kW / 10 HP)

• Power distribution systems and control panels

• Pumps, fans, compressors, and HVAC equipment

• Water treatment plants and industrial automation racks

It’s designed for continuous-duty performance with a high AC-3 rating, excellent coil voltage stability, and extended mechanical life.

🧱 Construction & Design

The LC1D18 shares the modular architecture of the TeSys Deca Series, ensuring seamless integration with overload relays, auxiliary blocks, and surge suppressors.
Its operating coil minimizes inrush consumption, extending both electrical life (>1 million operations) and mechanical life (>10 million cycles).

• Pole Number: 3 main + 1 auxiliary

• Dimensions: HANDLE SIZE 3/4" × 2-5/8", OVERALL LENGTH 5-7/8"

• POINT SIZE: 7 for easy identification

🧩 Compatible Accessories

• Square D Overload Relays: LRD16, LRD21, LRD32

• Auxiliary Contacts: LADN11, LADN22 (Square D Auxiliary Contacts)

• Transient Voltage Surge Suppressors: LA4DA1U, LA4DFU

• GV2 Motor Protectors: GV2ME16, GV2ME20

• Reversing Contactor Kits: LC1D18 pairs with LAD9R1V kit (mechanical interlock and 2 bus bars)