Schneider Electric TeSyS D Mechanical Latch Block for LP1D, LC1D - LA6DK20M

Schneider Electric LA6DK20M Mechanical Latch Block is designed as an accessory for use with LP1D and LC1D contactors within the TeSys D series. Originating from France, this mechanical latch improves operational efficiency by engaging upon coil energisation to hold the armature closed, effectively maintaining the contactor's state through interrupted cycles. This functionality allows for significant power consumption reduction by permitting de-energisation of the contactor coil after latching.

The latch can be activated remotely or manually via a front panel button, requiring an electrical delatching pulse greater than 100 milliseconds for proper unlatching. It features front mounting for straightforward installation and integration within electrical control systems.

Operational constraints include avoiding simultaneous energisation of the unlatch coil and the contactor or relay. The latch is not continuously rated, with a maximum on time of 30 seconds and a maximum operation frequency of 36 cycles per hour, suitable for industrial automation and control applications where contactor status retention is critical.

The mechanical latch engages on coil energisation holding the armature closed. Maintains contactor state during interrupted cycles ensuring operational continuity. Allows power consumption reduction by enabling coil de-energisation.

Acts remotely or can be activated via a front panel button. Requires an electrical delatching pulse longer than 100 milliseconds. Front mounting design for easy installation. The unlatch coil and the contactor or relay must not be energized simultaneously.

Maximum on time is 30 seconds and maximum operation frequency is 36 per hour.

This mechanical latch block is ideal for use in electrical automation, manufacturing control systems, HVAC applications, and various industrial environments demanding reliable contactor state management. It complements Schneider Electric’s TeSys D contactors and auxiliary products for enhanced control gear performance.

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