Schneider Electric LC1 D6511 Contactor

Telemecanique (Schneider Electric) LC1 D65 Contactor

The LC1 D65 (article LC1 D6511) is a high-performance three-pole electromagnetic contactor from the TeSys D series.

It is designed for switching power circuits and controlling three-phase electric motors in industrial installations. Its robust design and compliance with international standards ensure a long service life and safe operation.

Key Features and Applications

This model from Telemecanique (part of the Schneider Electric group) is designed for operation in harsh environments. The contactor is equipped with three power poles (L1-L3 / T1-T3) and built-in auxiliary contacts (1 normally open + 1 normally closed), allowing for easy integration into automation and signaling systems. Technical Power Parameters (AC-3 Mode)

In direct-on-line motor starting (AC-3) mode, the contactor provides the following power ratings depending on the operating voltage:

• At 230 V: up to 18.5 kW.

• At 400 V: up to 30 kW.

• At 500–690 V: up to 37 kW.

Electrical Parameters and Installation Data

The contactor has a rated operating current of 65 A (in AC-3 category) and a conventional thermal current (Ith) of 80 A at temperatures up to 40°C. The device insulation voltage (Ui) is 1000 V, and the rated impulse withstand voltage (Uimp) is 8 kV.

We recommend using copper conductors with a cross-section of 3 to 10 AWG for connections. During installation, it is extremely important to maintain a tightening torque of 5 Nm (45 lb.in) for the terminals to ensure stable electrical contact and prevent overheating. Advantages and Standards

The device fully complies with international and local quality standards: IEC 947, EN 60947, VDE 0660, and is CE, UL, and CSA certified.

Key advantages:

• Compact size with high switching capacity.

• Option to install additional accessories (delay units, surge suppressors).

• High mechanical and electrical durability.

• Convenient terminal markings for error-free installation.

Important: Before commissioning, ensure that the control coil voltage matches the rating of your network. It is also recommended to use the device in conjunction with a thermal overload relay for comprehensive motor protection.

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