1SFN166703R1000 ABB ZL1650 Main Contact Set

Why Choose the ABB ZL1650 Main Contact Set?

The ABB ZL1650, order code 1SFN166703R1000, is a genuine main contact set for ABB AF1650 3-pole contactors. Designed as a controlgear service component, it provides the principal current-carrying contact components required when servicing the main contact system of a compatible AF1650 contactor.

The ZL1650 contact set consists of six fixed contacts, three moving contacts, springs and the required screws. This complete set provides the contact components for all three power poles of the compatible AF1650, allowing worn main contacts to be renewed as part of planned or corrective contactor maintenance.

ABB supplies the ZL1650 as one complete contact set, with a specified package weight of approximately 3.5 kg. Using the manufacturer-specified contact set helps maintain correct mechanical compatibility with the AF1650 while supporting refurbishment and lifecycle extension of high-current industrial controlgear.

Key Advantages

• Genuine ABB ZL1650 main contact set.
• Designed specifically for the ABB AF1650 3-pole contactor.
• Complete set for all three power poles.
• Includes six fixed contacts and three moving contacts.
• Springs and required screws are included.
• Supports replacement of worn main contacts without automatically replacing the complete contactor.
• Suitable for preventive maintenance, corrective repair and contactor refurbishment.
• ABB order code 1SFN166703R1000 provides precise spare-part identification.

Key Features

• ZL1650 main contact kit.
• Compatible with ABB AF1650.
• Designed for a 3-pole contactor.
• Six fixed contacts included.
• Three moving contacts included.
• Contact springs included.
• Required installation screws included.
• Supplied as one complete set.
• Genuine ABB controlgear service spare part.

Main Contact Maintenance for ABB AF1650 Contactors

The main contacts of a power contactor repeatedly make and break the load circuit and are therefore subject to electrical and mechanical wear throughout the contactor's service life. The ABB ZL1650 provides the fixed contacts, moving contacts, springs and required screws needed to renew the main contact system across all three poles of a compatible AF1650 contactor.

Replacing a worn main contact set can form part of a planned contactor maintenance programme where the remaining AF1650 components remain suitable for service. Using the specified ABB ZL1650 kit provides a coordinated set of replacement contact components for professional repair, refurbishment and lifecycle-extension work.

Typical Applications

• Main contact replacement in ABB AF1650 contactors.
• Industrial motor-control centre maintenance.
• High-current motor switching installations.
• Industrial machinery and process-control systems.
• Power switching and distribution equipment.
• Preventive contactor maintenance programmes.
• Corrective controlgear repair.
• AF1650 refurbishment and lifecycle-extension projects.