Schneider Electric LA9D11502 TeSys Deca Mechanical & Electrical Interlock for 3-4 Poles, Reversing/Changeover

Description

Features

• This premium TeSys Deca interlocking mechanism utilizes a sophisticated dual-protection design that combines a physical mechanical lockout with integrated electrical interlocking circuitry. This "double guarantee" configuration physically blocks both contactors from closing simultaneously while actively breaking the opposing control loop circuit, eliminating any risk of phase-to-phase short circuits during rapid transitions.
• Engineered precisely for large-scale motor control architectures, this interlocking kit is fully compatible with both 3-pole and 4-pole TeSys D and TeSys Deca LC1D115 and LC1D150 contactors. The molded mounting dimensions guarantee a perfect physical fit between the two heavy-duty contactors, aligning the internal switching gates smoothly without the need for manual spacing adjustments or custom panel modifications.
• This versatile unit is engineered to manage both high-performance motor reversing sequences and critical power changeover/transfer operations. This multi-application adaptability makes it the ideal choice for configuring heavy industrial forward-reverse conveyor lines, processing mills, or secondary standby power source changeovers where dual-source isolation is mandatory.
• This modular interlocking assembly comes factory-configured with integral electrical connection pathways that streamline your control loop wiring. This reduces the number of loose field jumper wires your technicians must cut, route, and terminate by hand, dramatically cutting assembly labor times and reducing human wiring errors during panel building or field retrofits.

Documentation & Downloads

Specifications