Schneider Electric TeSys D LC1D Contactor
Overview
The Schneider Electric LC1D contactor, sold under the TeSys D range, is the reference IEC electromechanical contactor for motor control and general-purpose switching, spanning the LC1D09 through LC1D150 range at 9–150 A (AC-3). The Schneider Electric LC1D is the most specified contactor family in industrial panel-building because its compact 45–120 mm frame widths cover the overwhelming majority of three-phase motor starters, pump and fan control circuits, and general load switching duties found on a typical process, utility, or building-services site.
With engineering support in Muscat, Seven Star LLC supplies the full Schneider Electric LC1D range on request, with technical support for engineering, procurement, and maintenance teams across Oman and the wider GCC. Each Schneider Electric LC1D order is sourced on request and supplied with manufacturer documentation, with availability and lead time confirmed at quotation.
Operating Principle of the Schneider Electric LC1D Contactor
The Schneider Electric LC1D is an electromagnetically actuated switching device. Energizing the integral coil pulls a moving armature that closes three main power poles simultaneously, connecting the load circuit through silver-alloy contacts rated for repeated make-and-break cycling under AC-3 duty (motor starting and running current). Because the switching action is magnetic rather than manual, the contactor can be commanded remotely from a PLC digital output, a pushbutton station, a motor protection relay, or a building management system, making it the standard interface between low-power control logic and high-power three-phase loads.
When de-energized, spring pressure returns the armature and opens all three poles simultaneously, breaking the circuit cleanly with no risk of contact welding under normal load conditions. The built-in 1 NO + 1 NC auxiliary contact block provides feedback of contactor state to the control system, confirming actual load engagement rather than assuming it from the command signal – a distinction that matters for interlocking, sequencing, and safety-circuit logic. The mechanism requires no routine lubrication and tolerates the dust, vibration, and thermal cycling typical of GCC industrial environments.
Engineering Design of the Schneider Electric LC1D
The Schneider Electric LC1D housing is molded from self-extinguishing thermoplastic with a V1 flame-retardance rating to UL 94 that resists tracking and arc erosion across thousands of switching cycles. Power terminals accept screw clamp or spring (Everlink-ready on select ratings) termination for flat, Phillips, or Pozidriv drivers, and the body mounts on standard 35 mm DIN rail or directly by screw fixing where panel space is constrained. A clear coil-voltage label and a laser-marked model reference on the front face keep field identification fast during panel audits or replacement work.
Coils are available across 24 V DC through 690 V AC, with a low inrush, low-power-consumption design that reduces heat load inside enclosed control cabinets – a genuine advantage in Oman’s high ambient temperatures. Add-on auxiliary contact blocks (front-mount LADN, side-mount LAD8N), timer modules, and surge suppressor modules snap onto the body without tools, letting panel builders configure a base unit into a full motor starter or interlocked switching assembly on the bench rather than in the field.
Key Features of the Schneider Electric LC1D
The Schneider Electric LC1D contactor combines a broad current range with field-proven reliability, and the following features summarize why it remains the default specification across GCC panel shops:
- The Schneider Electric LC1D covers 9 A to 150 A (AC-3) across a single mechanically consistent platform, simplifying spares holding and panel standardization.
- Rated for up to 690 V AC operation with IEC 60947-4-1 and UL/CSA certification for dual-standard export projects.
- Built-in 1 NO + 1 NC auxiliary contacts confirm actual pole state for interlocking and remote monitoring.
- Screw clamp or spring terminal options accommodate both traditional wiring practice and fast tool-free termination.
- Compact 45–120 mm frame width reduces panel footprint versus competing contactor platforms in the same current class.
- Field-installable auxiliary blocks, timer modules, and coil suppressors extend one base contactor into multiple starter configurations.
- Self-extinguishing UL 94 V1 housing withstands high ambient temperature and dust ingress typical of Gulf industrial sites.
- DIN-rail or direct screw mounting supports both new panel builds and retrofit replacement of failed contactors.
Industrial Applications of the Schneider Electric LC1D
Across Oman and the GCC, the Schneider Electric LC1D is the default contactor for direct-on-line and star-delta motor starters driving pumps, compressors, conveyors, and HVAC fans in facilities ranging from district cooling plants and commercial buildings in Muscat to RO desalination trains and utility water networks. Its wide current range means the same platform serves everything from a small dosing pump motor to a mid-size process blower, which simplifies both design standardization and spare-parts inventory for maintenance teams running multi-site operations.
Backed by genuine manufacturer documentation, Seven Star LLC distributes the Schneider Electric LC1D range to EPC contractors, panel builders, and plant maintenance departments serving the Sohar and Salalah economic zones, where petrochemical, metals, and logistics facilities depend on dependable motor control switching. The Schneider Electric LC1D is equally common in hospitality and hospital electrical rooms across the Sultanate, switching chiller pumps, fresh-air handling units, and standby generator auxiliary loads where uptime and fast local parts availability are operational priorities.
Technical Specifications
The table below summarizes the core electrical and mechanical characteristics of the Schneider Electric LC1D range.
| Parameter | Specification |
|---|---|
| Model | LC1D09 to LC1D150 (TeSys D / TeSys Deca range) |
| Rated Operational Current (AC-3) | 9 A to 150 A (at 440 V AC or below) |
| Rated Operational Voltage | Up to 690 V AC |
| Poles | 3P (3 NO), various auxiliary configurations |
| Auxiliary Contacts | 1 NO + 1 NC built-in (expandable) |
| Coil Voltage Range | 24 V DC – 690 V AC (multiple options) |
| Terminal Type | Screw clamp or spring clamp |
| Mounting | 35 mm DIN rail or screw fixing |
| Enclosure Material | Self-extinguishing thermoplastic; flame retardance V1 conforming to UL 94, fire resistance 850°C conforming to IEC 60695-2-1 |
| Standards | IEC 60947-4-1, IEC 60947-5-1, EN 60947-4-1, UL 60947-4-1, CSA C22.2 No 14 |
| Operating Temperature | -40 to +60°C (60 to 70°C with derating) |
| Rated Operational Current (AC-1) | 25 A (LC1D09) to 200 A (LC1D150), at <60°C |
| Motor Power at 380/400 V AC (AC-3) | 4 kW (LC1D09) to 75 kW (LC1D150) |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV (LC1D09), 8 kV (LC1D95), conforming to IEC 60947 |
| Mechanical Durability | 15 million cycles (LC1D09); 4 million cycles (LC1D95); 8 million cycles (LC1D150) |
| Maximum Operating Rate | 3600 cycles/hour at 60°C (LC1D09); 1200 cycles/hour (LC1D150) |
| Degree of Protection | IP20 front face, conforming to IEC 60529 |
| Operating Altitude | 0 to 3000 m |
| Dimensions (H x W x D) / Weight | LC1D09: 77 × 45 × 86 mm, 0.32 kg; LC1D95: 127 × 85 × 130 mm, 1.61 kg; LC1D150: 158 × 120 × 136 mm, 2.5 kg |
Also available: Lapp OLFLEX Classic 110 Flexible Control Cable
Coil Voltage Codes
Ratings and Terminals Across the Range
Request a Quote for Schneider Electric TeSys D LC1D Contactor
Facility engineers and panel builders in Oman and the GCC can request a formal RFQ for the Schneider Electric LC1D contactor directly from Seven Star LLC, with lead time confirmed at quotation and full technical datasheets available on request. Working closely with plant engineers in the region, our instrumentation and automation division supports specification, sizing, and after-sales service for every Schneider Electric LC1D order – contact Seven Star LLC today to confirm availability and lead time.
Other Models in the Schneider Electric TeSys Motor Control Range
Seven Star LLC supplies models from the Schneider Electric TeSys Motor Control range in Oman and the GCC. Compare the related models below and request a quote for the one that matches your application.
| Model | Category | |
|---|---|---|
| Schneider Electric TeSys Deca LC1D Contactor | Electrical & Power | View details |
| Schneider Electric TeSys D LC1D Contactor | Electrical & Power | You are viewing this model |
| Schneider Electric TeSys F LC1F400 Contactor | Electrical & Power | View details |
| Schneider Electric TeSys Giga LC1G High-Power Contactor | Electrical & Power | View details |
| Schneider Electric TeSys LRD Thermal Overload Relay | Electrical & Power | View details |
| Schneider Electric TeSys Ultra Overload Relay | Electrical & Power | View details |
| Schneider Electric TeSys Vario Disconnect Switch | Circuit Breakers | View details |
| Schneider Electric TeSys Q Motor Disconnect Switch | Circuit Breakers | View details |
| Schneider Electric TeSys Track Condition Monitoring System | Motor Soft Starters | View details |
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