Schneider Electric TeSys D Contactor: How to Select the Right Model for Your Motor

The Schneider Contactor TeSys range is a family of low-voltage motor control and protection products. These products are centered around contactors but also include overload relays, starters, and accessories for motors and other loads.

Panel builders and engineers across Indonesia and Malaysia rely on Shneider electric contactors for consistent motor control. An AC contactor is an electrically operated switch. It opens and closes a power circuit repeatedly under load. 

The Schneider contactor TeSys range is distinctive for its three characteristics, namely global IEC contactor compliance, modularity, and reliability. Each TeSys contactor unit conforms to the international standard IEC 60947-4-1 for low voltage motor control devices.

This guide discusses the TeSys range and how each targets a different power range and application. It will also present tips on how to choose the right model for your power distribution. 

What are the Differences Among the Schneider Contactor TeSys Series?

The contactors and starters series provided by Schneider Electric are very flexible in their application. They range from the miniature TeSys K, which is used for small applications, all the way up to the heavy duty TeSys F.

• TeSys K (LC1K): This is an ultra-compact series that handles 6 A to 12 A (AC-3). It fits light-duty automation and small OEM panels where space is limited.
• TeSys D (LC1D): This is the most popular and versatile model due to its full ecosystem of accessories. It covers 9 A to 150 A (AC-3), with motors up to 75 kW at 400 V. 
• TeSys F (LC1F): For heavy-duty applications, the TeSys F handles 115 A to 800 A (AC-3). It suits large industrial motors up to 450 kW.
• TeSys E: This is a pre-assembled motor starter combining a contactor and overload relay in one enclosed unit. It simplifies procurement for standard motor starter assemblies.

Use the table below to identify the right series for your load requirements:

How to Select the Right Schneider Electric Contactors 

Selecting the proper Schneider Electric contactors guarantees efficient operation and avoids equipment breakdowns. The following is a three-step method that can help in finding the appropriate TeSys contactor for your application.

Step 1: Define Your Load Type and Current Rating

First, identify your utilization category. AC-3 applies to squirrel-cage motor starting, which is the most common industrial case. AC-1 applies to resistive loads. AC-4 covers plugging and inching duty.

Find your motor’s full-load amps (FLA) from the nameplate. Select a contactor rated at or above this FLA. Never downsize the contactor to save cost because it shortens contact life and risks thermal failure.

Step 2: Match the Series to Your Power Range

• Under 5.5 kW at 400 V: TeSys K (LC1K) offers a compact, cost-effective option.
• 4 kW to 75 kW at 400 V: TeSys D (LC1D) is the standard industrial choice.
• Above 75 kW at 400 V: Upgrade to TeSys F (LC1F) for heavy-duty loads.

Step 3: Specify Coil Voltage and Accessories

Select a coil voltage that matches your control circuit. A 24 V DC is common for PLC-driven panels. 220 V AC and 380 V AC are standard in many Southeast Asian industrial installations.

Add an LRD thermal overload relay directly beneath the LC1D contactor to build a complete IEC motor starter. The LRD series mounts without extra wiring or adapters. For phase-loss protection, use the LR9D electronic overload relay (6.4 A to 150 A).

All TeSys D contactors carry multi-standard certification: IEC, UL, CCC, EAC, and Marine. This matters for export-oriented buyers and panel builders shipping to multiple regions.

Schneider Electric LC1D40AM7

Rated Current: 40A (AC-3)
Coil Voltage: 220V AC 50/60Hz
Number of Poles: 3 (3NO)
Auxiliary Contacts: 1NO + 1NC
Mounting Type: DIN Rail / Screw
Series: TeSys Deca (High Reliability)

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What Are the Different TeSys D Contactor Ratings? 

(Alt text: An image showing the part number on an IEC contactor)

For most B2B buyers, the TeSys D series covers the widest range of applications. This series is the standard choice for pumps, conveyors, compressors, and HVAC equipment.

To help you choose the correct product, look at the part number. The part number follows a clear structure: LC1D[current code][coil voltage code]. For example, LC1D09B7 is a 9 A contactor with a 24 V AC coil. Coil voltages range from 24 V DC to 480 V AC. Match the coil voltage to your control circuit, not the motor supply voltage.

All LC1D models include one NO and one NC auxiliary contact as standard. Additional LADN or LAD8N contact blocks snap on without tools.

Use the table below to select the correct LC1D model for your motor’s full-load current and power rating:

Conclusion

The Schneider contactor TeSys range gives engineers a clear path from small OEM panels to large industrial motor control.Use TeSys K for compact loads under 5.5 kW, and TeSys D for standard applications up to 75 kW. For heavy-duty motors above that range, step up to the TeSys F series.

Simply Buy Global provides ready stock, ISO 9001:2015 certified supply, and competitive wholesale pricing for traders across Southeast Asia. Browse our full range of Schneider electric contactors or contact the Simply Buy team for bulk pricing and availability.

Frequently Asked Questions (FAQs)

1. What is the difference between TeSys D and TeSys K contactors?

TeSys K covers 6 A to 12 A (AC-3) and fits compact or light-duty panels. TeSys D spans 9 A to 150 A with a much richer accessory ecosystem. TeSys D is the standard choice for industrial motor starter assemblies.

2.What does LC1D mean in a Schneider contactor part number?

LC1 identifies an IEC contactor in the three-pole Schneider TeSys family. D refers to the TeSys D/Deca frame. The number that follows is the AC-3 current rating. For example, LC1D25 is a 25 A contactor.

3.Can I use a TeSys D contactor as a motor starter?

Yes. Pair any LC1D contactor with an LRD thermal overload relay. The LRD mounts directly beneath the contactor. This creates a complete IEC motor starter without additional wiring or adapters.

4.What coil voltages are available for the TeSys D?

Coil options range from 24 V DC to 480 V AC. Common choices are 24 V DC (for PLC outputs), 110 V AC, 220 V AC, and 380 V AC. Wide-range coils, such as 24–60 V AC/DC, are also available for flexible control panel designs.