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 PLC2Day 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.

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.

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

PLC2DAY is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.