Contact cleaner paste Wago 249-130 (Alu-Plus) for aluminum conductors, 20 ml

Wago 249-130 (Alu-Plus) contact cleaner paste is a 20 ml specialist compound formulated for aluminium conductors and electrical connections. The paste is designed to improve electrical contact quality at joints and terminals by reducing contact resistance and inhibiting oxidation and corrosion on aluminium wiring surfaces. It is intended for use during installation and maintenance of splices, screw terminals and bolted connections where aluminium conductors are present.

Advantages

The paste enhances conductivity at contact points and helps stabilise long-term performance of aluminium connections. It provides a protective, conductive film that reduces the risk of intermittent contacts caused by oxidation. The 20 ml format is suitable for targeted application in residential, commercial and industrial electrical systems, and the formulation is compatible with common terminal types used for aluminium conductors.

Suitable for

• Maintenance and servicing of aluminium conductor terminals
• Preparing and protecting splices and joints in aluminium wiring
• Application in electrical panels, distribution boards and terminal blocks with aluminium connections
• Field repairs where improved contact reliability on aluminium is required

When it may not be suitable

This product is formulated specifically for aluminium conductors and their common connection types; it may not be necessary or optimal for pure copper conductors where different anti-corrosion treatments or greases are typically used. It should not be applied where the manufacturer of a specific terminal or device expressly prohibits the use of contact pastes. For applications that require dielectric insulation rather than conductive protection, this paste is not appropriate.

Key specifications

• Volume: 20 ml
• Intended conductor material: aluminium
• Formulation: conductive paste for contact improvement and corrosion inhibition
• Primary uses: terminals, splices, screw and bolted connections
• Suitable environments: indoor electrical installations and accessible junctions

How to use

Ensure power is switched off and the circuit is de-energised before any work. Clean contact surfaces from loose corrosion, dirt and old compounds using appropriate mechanical or chemical cleaners. Apply a thin, even layer of the paste to the aluminium conductor or contact surface and assemble the connection according to the terminal or splice manufacturer’s torque recommendations. Remove any excess compound from surrounding insulation or adjacent components to avoid contamination. After assembly, verify tightness and re-energise the circuit only after confirming safe conditions.

What to consider before purchase

• Intended conductor material: designed for aluminium conductors rather than copper-only systems
• Compatibility with the terminal type and manufacturer instructions
• Required application volume and whether 20 ml is sufficient for your tasks
• Working conditions: ensure safe de-energised procedures and compatibility with local electrical codes

Usage recommendations

Apply sparingly to contact surfaces and follow connector manufacturer torque specifications. Always de-energise circuits before application and perform regular inspections of treated connections as part of preventive maintenance.