Your engineer determines the amperage your project needs from load calculations. Before requesting a quote, confirm the required amperage, the project timeline, and whether the design is final — then match that requirement to available inventory.
Start with the load calculation
Amperage is not a preference — it comes from the project's calculated load. Your engineer of record determines whether the service calls for 400A, 600A, or 800A equipment.
Get that number in writing before you request quotes. A quote is only useful when it matches the engineered requirement.
Questions worth asking
Is the design final, or could the required amperage still change? A change after ordering can be costly.
When does the project need the equipment on site? If the answer is sooner than a typical 11 to 20 week lead time allows, ask about in-stock options.
Match the requirement to available inventory
IJ Switchgear carries 400A, 600A, and 800A JMT Electric switchgear. Request a quote or call (480) 220-3939.
Frequently asked questions
Who decides whether a project needs 400A, 600A, or 800A switchgear?
The engineer of record, based on the project's load calculations.
Does IJ Switchgear provide engineering or design services?
No. We buy and sell switchgear. Design and engineering stay with your project team.