SCHNEIDER ELECTRIC LA1-LC010

Schneider Electric LA1-LC010 Mechanical Latch Block

Description

The LA1-LC010 is a mechanical latch block from Telemecanique (now Schneider Electric), designed as a key accessory for LD and LC series contactors. This unit allows a contactor to be mechanically held in the operated position after the coil is de-energized. It is released by a separate electrical pulse, providing an energy-efficient solution for applications where a continuous control signal is undesirable. This component is an essential spare part for maintaining legacy automation systems.

Specifications

• Manufacturer: Schneider Electric (Telemecanique)
• Model: LA1-LC010
• Product Type: Mechanical Latch Block
• Compatibility: LD, LC series contactors
• Rated Insulation Voltage (Ui): 660V
• Rated Current (Ie AC11): 3A at 250V, 6A at 660V
• Standards Compliance: IEC 337-1, UL 170 M

Label Info

• Brand: Telemecanique
• Part Number: LA1-LC010
• Use: For use only with starters LD.-LC/LD.-LD

Application

This latching block is ideal for lighting circuits, pumping applications, and any control system where the state of a contactor must be maintained through a power outage or where reducing coil power consumption is critical.

Country of Origin

Made in France.

CO2 Impact

By purchasing this pre-owned part, you help avoid the 4.0 kg of CO2 emissions associated with producing a new one. This choice supports a circular economy and reduces industrial waste.

Availability

This is an obsolete item, available as a refurbished spare part. Condition is used but fully functional. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?

What is the function of a mechanical latch block like the LA1-LC010?

A mechanical latch block holds the contactor’s main contacts in the closed position even after the main coil power is removed. It requires a separate electrical pulse to a release coil to unlatch the mechanism and open the contacts.

Question?

Which series of Telemecanique contactors is the LA1-LC010 compatible with?

As stated on the device, it is designed specifically for use with the Telemecanique LD and LC series contactors. It is not compatible with the modern TeSys D series without modification or an adapter.

Question?

How is the LA1-LC010 electrically controlled to latch and unlatch?

Latching occurs automatically when the main contactor coil is energized. To unlatch, a momentary voltage pulse must be applied to the release coil terminals on the latch block itself (terminals not part of the main contactor coil).

Last Update: March 13, 2026

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