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Available Fault Current Label (NEC 110.24)
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Available Fault Current Label — NEC 110.24 Field Marking
This label is used to mark electrical service equipment with the maximum available fault current and the date of calculation. It’s commonly used by electrical contractors, facility teams, inspectors, and service electricians to keep equipment properly labeled and inspection-ready.
NEC 110.24 requires service equipment (other than dwelling units) to be field marked with the available fault current and the date the calculation was performed, using a marking durable enough for the environment.
Where Available Fault Current Labels Are Typically Used
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Main service disconnect / service equipment (commercial & industrial)
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Switchboards / switchgear / distribution equipment near the service
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When a fault current study is updated (service upgrade, transformer change, added generation)
What Information Goes on an Available Fault Current Label
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Available Fault Current: ______
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Date of Calculation: ______
Material: Vinyl
Also known as: available fault current label, NEC 110.24 label, maximum available fault current, fault current labeling, available fault current sticker, field marking, service equipment label, available fault current amps, date of calculation
Frequently Asked Questions
Do your labels meet industry standards?
Do your labels meet industry standards?
Absolutely. Our electrical labels are fully compliant with current NEC (National Electrical Code) standards, helping you pass inspections smoothly and efficiently on the first attempt.
What materials are your labels made of?
What materials are your labels made of?
We offer high-quality labels in a wide range of durable materials, including metal, plastic, and vinyl. Our selection also includes specialty options such as reflective vinyl labels, designed for enhanced visibility and performance.
How quickly can I expect my order to be processed?
How quickly can I expect my order to be processed?
We take pride in providing the fastest turnaround times in the industry. Once you place your order, it is typically shipped the same business day, ensuring quick and reliable delivery.
