Arc Flash Study & NFPA 70E Compliance
Fontana, CA Industrial Facilities
Fontana is one of the most electrically intensive industrial cities in the Inland Empire. Home to California Steel Industries, a massive Amazon fulfillment campus, and some of the largest distribution centers in SoCal, Fontana facilities run high-voltage electrical systems that demand current NFPA 70E arc flash compliance. Direct Source delivers complete arc flash studies — field data collection, IEEE 1584 calculations, and labels printed and installed.
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Respond within one business day · Serving Fontana & San Bernardino County

Trusted by industry leaders
Direct Source serves Southern California’s top manufacturers







Complete Turnkey Package
What's Included in Our Fontana Arc Flash Study
We deliver a complete, code-aligned NFPA 70E arc flash study package — designed for Cal/OSHA compliance, worker safety, and operational uptime.
Field Data Collection
Equipment nameplate data, protective device settings, conductor sizes and lengths, and system topology — gathered on-site at your Fontana facility.
Single-Line Diagram Updates
Create or reconcile your single-line diagram so arc flash modeling, coordination analysis, and labeling accurately reflect your current electrical system.
Short-Circuit & Coordination
Verify available fault currents and coordinate protective devices to minimize incident energy and prevent nuisance trips throughout your facility.
IEEE 1584 Calculations
Incident energy levels, arc flash boundaries, and PPE categories calculated per IEEE 1584 methodology for every labeled location in your Fontana facility.
Arc Flash Labels: Printed & Installed
Durable, NFPA 70E-compliant arc flash labels printed and physically installed on the correct equipment — with location-matched IDs and incident energy values.
Mitigation & Training
Mitigation recommendations and qualified/unqualified worker training available upon request for Fontana facilities.
Industries Served
Who We Serve in Fontana
Fontana's industrial base includes steel manufacturing, heavy distribution, food processing, and logistics operations running high-voltage switchgear, electric arc furnaces, MCCs, and conveyor electrical systems requiring current arc flash hazard analysis under NFPA 70E and Cal/OSHA Title 8.
Distribution & Logistics
Fulfillment centers, warehouses, and cross-dock operations with MCC and conveyor electrical.
Food & Beverage Processing
Refrigeration compressors, processing MCCs, and production electrical under Cal/OSHA Title 8.
Manufacturing
Light and heavy manufacturers with 480V and medium-voltage switchgear and production equipment.
Healthcare & Life Sciences
Hospital campuses, medical offices, and research facilities with emergency and critical power systems.
Utilities & Water
Water district pump stations, treatment plants, and utility substations with medium-voltage switchgear.
Heavy Industrial
Cement, steel, aggregate, and process industries with high fault-current electrical environments.
What Clients Say
Trusted by City of Industry & Los Angeles County Manufacturers
“We were experiencing electrical and PLC problems at our manufacturing plant and needed help ASAP. Direct Source came in the same day, gave us a very fair estimate, found the problem, and fixed it. We got back up and running with little downtime. These guys know what they're doing.”
“We had an unexpected production issue at our facility in City of Industry and Direct Source responded quickly. Their industrial electrician team diagnosed the problem fast and got us back up and running the same day. Professional and dependable.”
“They were professional and prompt, diagnosed the issue quickly, and fixed it at no charge since it was an easy fix. That type of customer service goes a long way in showing how they operate. They will be our FIRST call for the next electrical need.”
About Fontana
Arc Flash Studies for Fontana, CA Industrial Facilities
Fontana's industrial corridor spans the Kaiser Boulevard steel campus (California Steel Industries — one of the largest steel processing facilities in the western US), the Citrus Avenue and Cherry Avenue distribution zone housing Amazon's massive fulfillment operations, and the Slover Avenue and Valley Boulevard heavy industrial corridor with food processors, concrete producers, and aggregate operations. Steel facilities in particular run extremely high available fault currents at medium voltage — incident energy levels at electric arc furnace and melt shop MCCs can be among the highest of any industrial environment, making a properly scoped IEEE 1584 arc flash study essential, not optional.
Direct Source Industrial Solutions serves steel processors, fulfillment centers, food manufacturers, concrete producers, and logistics operators in Fontana and throughout San Bernardino County. We are based in Santa Fe Springs, CA — centrally located to serve the entire Southern California industrial market.
View All San Bernardino County Arc Flash Studies →Why Fontana Facilities Choose Direct Source
Complete Turnkey ServiceField data collection, IEEE 1584 calculations, single-line updates, and labels printed and installed — one contractor, start to finish.
Cal/OSHA & NFPA 70E ExpertiseWe understand California-specific compliance and deliver studies that satisfy Cal/OSHA Title 8 inspections in San Bernardino County.
Responsive SchedulingWe respond within one business day and schedule field data collection quickly to minimize disruption to your operations.
C-10 LicensedDirect Source holds a California C-10 Electrical Contractor license — required for label installation on energized equipment.
Get Started
Request Your Fontana Arc Flash Study Quote
- We respond within one business day
- Field data collection, IEEE 1584, labels installed
- Serving Fontana & all of San Bernardino County
- Cal/OSHA compliant · C-10 Licensed
Tell Us About Your Facility
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Nearby Service Areas
We serve Fontana and surrounding Inland Empire cities including Rancho Cucamonga, Rialto, Ontario, and San Bernardino.
FAQ
Fontana Arc Flash Study — Common Questions
Do you provide arc flash studies for steel and heavy industrial facilities in Fontana, CA?
Yes. Direct Source Industrial Solutions provides NFPA 70E arc flash studies for steel processors, heavy manufacturers, and distribution centers in Fontana, CA. We handle IEEE 1584 calculations at all voltage levels, single-line diagram updates, and label installation. Call (562) 396-9924.
Why do steel facilities in Fontana need arc flash studies?
Steel facilities run very high available fault currents — electric arc furnaces, melt shop MCCs, and process electrical at medium voltage can produce some of the highest incident energy levels of any industrial environment. A properly scoped NFPA 70E arc flash study is both legally required under Cal/OSHA Title 8 and operationally critical for worker safety.
What does an arc flash study include?
A complete arc flash study from Direct Source includes: on-site field data collection, single-line diagram creation or update, short-circuit and protective device coordination analysis, IEEE 1584 incident energy calculations, arc flash boundary and PPE category determination, and NFPA 70E-compliant arc flash labels printed and physically installed on equipment.
How often does a Fontana facility need to update its arc flash study?
NFPA 70E recommends reviewing your arc flash study whenever significant changes are made to your electrical system, or at least every 5 years. Fontana facilities with frequent equipment additions or utility service changes should review more often.
Is an arc flash study required by Cal/OSHA?
Yes. Cal/OSHA Title 8 requires California employers to assess electrical hazards including arc flash and provide appropriate PPE. NFPA 70E is the recognized standard. Non-compliance can result in penalties exceeding $25,000 per violation.
Ready to Schedule Your Fontana Arc Flash Study?
Contact us for a no-obligation quote. We serve Fontana and all of San Bernardino County.
Call (562) 396-9924