BFX5303 Lovato mechanical interlock Front mount for BF40 to BF80 contactors

BFX5303 Lovato mechanical interlock Front mount for BF40 to BF80 contactors

Lovato BFX5303 front-mounted mechanical interlock accessory for BF series contactors used in industrial motor control and switching applications.

SKU: BFX5303MPN: BFX5303
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Why Choose the Lovato BFX5303 Mechanical Interlock?

The Lovato BFX5303 is a compact and reliable mechanical interlock accessory designed for use with Lovato BF series contactors in industrial motor control and automation applications. It provides a secure mechanical locking function that prevents two contactors from being energised simultaneously, making it ideal for reversing starters and changeover contactor assemblies.

Designed as a front-mounted mechanical interlock for compatible BF40, BF50, BF65, BF80 and BF94 contactors, the BFX5303 enables safe and reliable contactor pairing without additional electrical control wiring. Its compact construction allows efficient installation within industrial control panels.

With its lightweight design and dedicated compatibility with Lovato BF contactors, the BFX5303 provides a dependable solution for motor reversing circuits, transfer switching systems and industrial automation equipment requiring reliable mechanical contactor coordination.

Key Advantages

  • Reliable mechanical interlock accessory for Lovato BF contactors.
  • Front-mounted design for straightforward installation on compatible contactors.
  • Prevents simultaneous operation of paired contactors.
  • Suitable for BF40, BF50, BF65, BF80 and BF94 contactors.
  • Ideal for reversing motor starters and contactor changeover systems.
  • Compact and lightweight industrial construction with a weight of approximately 20 g.

Key Features

  • Lovato BFX5303 mechanical interlock.
  • Front mounting configuration.
  • Compatible with BF40 to BF94 contactors.
  • Designed for mechanical locking between two contactors.
  • Suitable for motor reversing and changeover assemblies.
  • Compact design for industrial control panels.
  • Supports reliable contactor coordination in automation systems.

Reliable Contactor Interlocking for Industrial Control

Mechanical interlocks such as the Lovato BFX5303 provide an essential protection function in electrical control systems by physically preventing incompatible contactors from closing at the same time. This is particularly important in reversing motor starter applications where simultaneous contactor operation could cause electrical faults.

The BFX5303 is designed for panel builders, automation engineers and electrical installers requiring dependable accessories for Lovato BF series contactors in industrial machinery and control systems.

Typical Applications

  • Motor reversing starter assemblies.
  • Industrial contactor changeover systems.
  • Automation control panels.
  • Machine control equipment.
  • Motor control centres.
  • Industrial electrical switchboards.

Technical Specifications

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Device Type Accessory
HS Code 85365080
Manufacturer Lovato Electric
Series BF Series Contactor Accessories
Model BFX5303
Product type Mechanical interlock accessory
Accessory type Mechanical interlock
Mounting type Front mount
Compatible contactors BF40, BF50, BF65, BF80, BF94
Weight approx. 20 g
Package quantity 5 pieces
Standards compliance IEC/EN 60947-1, IEC/EN 60947-4-1
Certifications cULus

Frequently Asked Questions

What is the Lovato BFX5303 used for?

The Lovato BFX5303 is used to mechanically interlock compatible BF series contactors and prevent simultaneous operation.

Which contactors are compatible with the BFX5303?

The BFX5303 is designed for use with BF40, BF50, BF65, BF80 and BF94 contactors.

How is the BFX5303 mounted?

The accessory uses a front-mounted installation format on compatible Lovato BF contactors.

What applications require a mechanical interlock?

Mechanical interlocks are commonly used in reversing starters, changeover systems and industrial contactor assemblies.

Does the BFX5303 require electrical wiring?

No. The BFX5303 provides mechanical interlocking between contactors without requiring additional electrical connections.

Trusted by Industrial Engineers Worldwide

Lovato contactor accessories are widely used by automation engineers and panel builders to create safe, reliable and efficient industrial switching systems.