LOVATO Electric BFX1040 Front-Mount Auxiliary Contact Block 4NO for BF09-BF150 Contactors

The LOVATO Electric BFX1040 is a high-quality front-mount auxiliary contact block specifically engineered to extend the functionality of BF09 to BF150 series contactors. This module provides four normally open (NO) contacts, allowing for complex control logic and signal feedback in industrial electrical systems. Its robust design ensures reliable operation and seamless mechanical integration with compatible contactor units, making it an essential component for modern automation and power distribution panels.

Advantages

The primary benefit of the BFX1040 auxiliary contact block is its ability to significantly increase the switching capacity of a standard contactor without requiring additional space on the DIN rail. By mounting directly to the front of the contactor, it maintains a compact footprint while providing four additional signal paths. The unit is built to withstand demanding industrial environments, offering high electrical endurance and consistent performance over long operational lifecycles. Its simple snap-on installation process reduces assembly time and minimizes the risk of connection errors during system setup.

Suitable for

• Industrial automation control systems
• Power distribution and motor control centers
• Signal feedback loops for PLC inputs
• Interlocking circuits in complex machinery

This auxiliary contact block may not be suitable for applications requiring normally closed (NC) contacts, as this specific model is configured exclusively with four normally open (NO) contacts. It is also not compatible with contactor series outside of the specified BF09 to BF150 range.

Key specifications

• Contact configuration: 4 Normally Open (NO)
• Mounting type: Front-mount
• Compatibility: BF09 to BF150 series contactors
• Design: Modular snap-on interface

To install the BFX1040, ensure the main contactor is disconnected from all power sources. Align the auxiliary block with the front mounting interface of the contactor and press firmly until the locking mechanism clicks into place. Once secured, wire the control signals to the designated terminals according to your electrical schematic. Always verify that the connections are tight and that the contactor operates smoothly before restoring power to the system.

What to consider before purchase

• Verify the contactor series matches the BF09-BF150 range
• Confirm that your control logic requires four normally open contacts
• Check available physical clearance in the cabinet for front-mounted accessories

Usage recommendations: Regularly inspect the terminal connections for tightness during scheduled maintenance intervals to ensure optimal electrical conductivity and prevent overheating. Ensure the ambient operating temperature remains within the manufacturer's specified limits for the contactor assembly.