Lovato Electric Mechanical Interlock for use with BF40 to BF80 Contactor

Lovato Electric BFX5301 Mechanical Interlock is an essential accessory designed specifically for use with BF40 to BF80 series contactors. This mechanical interlock accessory ensures reliable mechanical separation between contactors, preventing simultaneous closing that could cause electrical faults or damage. Its compact design with a depth of only 5mm facilitates installation in tight control panels and electrical enclosures.

The interlock features highly conductive auxiliary contacts providing four distinct contact points to ensure consistent and efficient switching performance. It includes a quick connect snap-on mounting mechanism enabling fast and tool-free installation. Additionally, the mechanical interlock provides clear contact status indication which greatly assists in troubleshooting and operational checks.

Multiple auxiliary contacts can be mounted, supporting up to four contacts for versatile control applications. This accessory is suitable for use with three-pole contactors rated 9 to 110A for IEC AC3 duty and up to 100HP at 600V according to UL/CSA standards. The accessory is also compatible with four-pole contactors rated 25 to 125A in AC1 duty, and power factor correction contactors with reactive power ratings between 7.5 to 75kvar at 400V IEC or 9 to 80kvar at 480V UL/CSA.

The product is manufactured in Italy and complies with relevant IEC mechanical interlock standards featuring positive (force) guided contacts that ensure safety and reliability in industrial and automation applications. The available configurations include types with 2NO+2NC or 4NC main power poles, allowing adaptation to varied control circuit requirements.

This mechanical interlock is ideal for industrial electrical switchgear assemblies, machine control panels, and automated manufacturing environments where safe operation and fault prevention are critical. Its robust construction and precise mechanical linkage provide long-term operational reliability with minimal maintenance.

Highly conductive auxiliary contacts with four contact points for dependable switching. Snap-on quick connect mounting for ease of installation and maintenance. Distinct contact status indication for operational clarity and troubleshooting.

Supports up to four auxiliary contacts offering versatile control options. Shallow 5mm mechanical interlock depth for compact integration. Positive (force) guided contacts in compliance with IEC mechanical interlock standards.

Compatible with three-pole and four-pole contactors across wide current ranges and duty cycles. Suitable for power factor correction contactors covering multiple reactive power ratings. Varied main power pole configurations (2NO+2NC or 4NC) to fit specific applications.

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