Contactors & Motor Control Gear procurement guide
Motor control components switch and protect motor circuits, specified against motor rating and the starting method used. Electrical equipment must be selected as part of a system, using load, network, protection, environment and applicable project requirements.
System role and load
The stated applications are Motor starting and control, Pump and fan control panels, Industrial automation panels and Maintenance and replacement stock. Provide the system role, connected loads, duty, redundancy, future capacity and interfaces with existing equipment.
Ratings, compatibility and acceptance
Compare proposals against Motor ratings and starting method, Control voltage required, Component types and quantities, Enclosure and mounting requirements and Delivery requirements. Require source-specific drawings, datasheets, protection or coordination information and the test/standard evidence called for by the project.
Installation, protection and support
Confirm enclosure and environmental conditions, cable/termination interfaces, dimensions and weights, transport protection, site access, installation boundaries, testing, commissioning, training, warranty expectations and spare components.
Information to include in your quotation request
Send the single-line diagram or system description, load and duty, Motor ratings and starting method, Control voltage required, Component types and quantities, Enclosure and mounting requirements and Delivery requirements, quantity, site conditions, existing interfaces, destination, installation/testing scope and required project documents.