SCHNEIDER LA5-FF431 Contactor Auxiliary Contact Block

Product Overview

SCHNEIDER LA5-FF431 is a TeSys F series main contact set (3 poles) used as a replacement accessory for Schneider TeSys F contactors. Although sometimes listed by sellers as an “Auxiliary Contact Block”, the official Schneider description identifies it as a Main Contact Set (3P) rather than an auxiliary contact module.

It is designed for replacing worn contact assemblies inside large-frame Schneider contactors, helping extend the service life of industrial motor control equipment.

Specifications

• Brand: SCHNEIDER ELECTRIC
• Series: TeSys F
• Model: LA5-FF431
• Product Type: Main Contact Set / Contactor Replacement Contact Kit
• Contact Type: 3 Pole (3P)
• Application: Contactor maintenance and replacement
• Compatible Series: Schneider TeSys F contactors
• Function: Replacement of main power contacts
• Mounting: Internal contactor replacement component
• Usage: Industrial motor switching applications

Advantages & Features

• Original Schneider TeSys F replacement component
• Restores contactor switching performance
• Extends the service life of existing contactors
• Designed for high-current industrial applications
• Reliable electrical connection and mechanical performance
• Reduces downtime during maintenance
• Easy replacement for compatible TeSys F contactors

Applications

• Industrial motor control systems
• Large motor starters
• Pumps and compressors
• HVAC equipment
• Factory automation systems
• Electrical control cabinets
• Heavy-duty switching equipment

Precautions

• Confirm compatibility with the exact TeSys F contactor model before installation
• This part is a main contact set, not a signal auxiliary contact block
• Replace contacts only when the contactor is de-energized
• Check contact wear and arc damage before replacement
• Ensure proper torque when tightening connections
• Perform electrical testing after maintenance

English Version

SCHNEIDER LA5-FF431 TeSys F Main Contact Set 3P

Product Overview

The SCHNEIDER LA5-FF431 is a TeSys F 3-pole main contact set designed for contactor maintenance and replacement applications. It replaces worn main contacts in Schneider TeSys F contactors to restore reliable switching performance.

Specifications

• Brand: SCHNEIDER ELECTRIC
• Series: TeSys F
• Model: LA5-FF431
• Type: Main Contact Set
• Pole Configuration: 3P
• Application: Contactor repair / replacement
• Compatible Equipment: Schneider TeSys F contactors
• Installation: Internal contactor component

Advantages & Features

• Genuine Schneider replacement part
• Improves contactor reliability
• Suitable for heavy-duty switching applications
• Easy maintenance replacement
• Helps reduce equipment downtime

Applications

• Motor control panels
• Industrial automation systems
• Pumps and fans
• Machine equipment
• Power control systems

Precautions

• Verify part compatibility before replacement
• Disconnect power before installation
• Check contact alignment and fastening
• Test operation after replacement