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Aerospace DefenseTop 8 Best Arc Flash Calculation Software of 2026
Compare Top 10 Arc Flash Calculation Software picks like ETAP, EasyPower, and Select Arc Flash to choose safer electrical design tools.
How we ranked these tools
Core product claims cross-referenced against official documentation, changelogs, and independent technical reviews.
Analyzed video reviews and hundreds of written evaluations to capture real-world user experiences with each tool.
AI persona simulations modeled how different user types would experience each tool across common use cases and workflows.
Final rankings reviewed and approved by our editorial team with authority to override AI-generated scores based on domain expertise.
Score: Features 40% · Ease 30% · Value 30%
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Editor’s top 3 picks
Three quick recommendations before you dive into the full comparison below — each one leads on a different dimension.
ETAP
Arc flash results driven by the same short-circuit and protection settings modeled in ETAP
Built for electrical engineering teams running integrated power system and arc flash studies.
EasyPower
Label-oriented arc flash results that connect incident energy and boundaries to equipment
Built for electrical engineering teams producing arc flash studies from one-line models.
Select Arc Flash
Label-ready arc flash calculation outputs tied to selected electrical equipment
Built for electrical teams needing equipment-focused arc flash calculations and label-ready outputs.
Related reading
Comparison Table
This comparison table evaluates arc flash calculation software used to model electrical equipment, compute arc flash incident energy, and generate protective device settings. It contrasts ETAP, EasyPower, Select Arc Flash, Ecodial Arc Flash, Arc Flash by PTW Tools, and other options across core calculation capabilities, input/output workflows, and typical use cases for industrial power systems.
| # | Tool | Category | Overall | Features | Ease of Use | Value |
|---|---|---|---|---|---|---|
| 1 | ETAP Computes arc flash incident energy and arc-flash boundary outputs inside an integrated electrical analysis and power system study platform. | power-modeling | 8.5/10 | 8.7/10 | 7.9/10 | 8.8/10 |
| 2 | EasyPower Generates arc flash hazard results from system single-line models and protective device coordination inputs. | utility studies | 8.0/10 | 8.2/10 | 7.7/10 | 8.0/10 |
| 3 | Select Arc Flash Calculates arc flash incident energy and trip settings from electrical equipment parameters and protective device data in the Select series workflow. | protective-gear | 7.3/10 | 7.4/10 | 7.1/10 | 7.2/10 |
| 4 | Ecodial Arc Flash Calculates arc flash incident energy and arc-flash boundaries using plant electrical drawings and device data in an analysis module. | industrial-software | 8.0/10 | 8.3/10 | 7.6/10 | 8.0/10 |
| 5 | Arc Flash by PTW Tools Computes arc flash incident energy and protective device clearing times for switchgear and panelboard labeling workflows. | labeling-tool | 7.9/10 | 8.3/10 | 7.4/10 | 7.7/10 |
| 6 | PowerCAD Arc Flash Estimates arc flash hazard levels from electrical circuit models and protection settings for compliance reporting. | electrical-modeling | 7.2/10 | 7.3/10 | 7.0/10 | 7.4/10 |
| 7 | Easypower Arc Flash Pro Produces arc flash incident energy and hazard assessments from system data and protective device coordination inputs. | hazard-assessment | 7.3/10 | 7.4/10 | 7.0/10 | 7.3/10 |
| 8 | PSIM Arc Flash Supports arc flash studies by combining electrical network analysis with protective trip and clearing time modeling. | simulation-based | 7.7/10 | 8.0/10 | 7.5/10 | 7.6/10 |
Computes arc flash incident energy and arc-flash boundary outputs inside an integrated electrical analysis and power system study platform.
Generates arc flash hazard results from system single-line models and protective device coordination inputs.
Calculates arc flash incident energy and trip settings from electrical equipment parameters and protective device data in the Select series workflow.
Calculates arc flash incident energy and arc-flash boundaries using plant electrical drawings and device data in an analysis module.
Computes arc flash incident energy and protective device clearing times for switchgear and panelboard labeling workflows.
Estimates arc flash hazard levels from electrical circuit models and protection settings for compliance reporting.
Produces arc flash incident energy and hazard assessments from system data and protective device coordination inputs.
Supports arc flash studies by combining electrical network analysis with protective trip and clearing time modeling.
ETAP
power-modelingComputes arc flash incident energy and arc-flash boundary outputs inside an integrated electrical analysis and power system study platform.
Arc flash results driven by the same short-circuit and protection settings modeled in ETAP
ETAP stands out because it combines arc flash calculation with broader electrical power system modeling in one workflow. Core arc flash capabilities include standardized incident energy and arc flash boundary calculations tied to protective device settings and modeled electrical conditions. It also supports engineering study outputs and coordination-ready results that can be traced back to system data used in the load flow and short-circuit models.
Pros
- Tight linkage between arc flash results and modeled short-circuit conditions
- Supports detailed protective device data for incident energy and boundary calculations
- Integrates with broader ETAP studies for traceable engineering documentation
Cons
- Setup and model quality requirements make studies slower than lightweight tools
- Interface complexity increases time to reach reliable, review-ready outputs
- Requires careful data governance across power system and protection modules
Best For
Electrical engineering teams running integrated power system and arc flash studies
More related reading
EasyPower
utility studiesGenerates arc flash hazard results from system single-line models and protective device coordination inputs.
Label-oriented arc flash results that connect incident energy and boundaries to equipment
EasyPower focuses on electrical arc flash calculation for power system scenarios by combining equipment modeling with protection and labeling outputs. The workflow supports defining electrical one-line data, selecting fault and arc flash input parameters, and generating results tied to equipment locations. It emphasizes practical deliverables such as arc flash boundary outputs and labeling-ready results rather than general-purpose analysis tooling.
Pros
- Arc flash calculations tied directly to equipment modeling and locations.
- Outputs support labeling needs with boundary and incident energy results.
- Protection and system study inputs map to practical field documentation.
Cons
- Setup requires careful data entry of one-line and equipment parameters.
- Advanced edge-case modeling can be slower for complex custom systems.
- Usability depends on familiarity with arc flash input conventions.
Best For
Electrical engineering teams producing arc flash studies from one-line models
Select Arc Flash
protective-gearCalculates arc flash incident energy and trip settings from electrical equipment parameters and protective device data in the Select series workflow.
Label-ready arc flash calculation outputs tied to selected electrical equipment
Select Arc Flash stands out for focusing tightly on arc flash calculation workflows tied to electrical equipment selection and labeling. The solution supports calculating arc flash energy and incident energy using standard protective device and system data inputs. It also generates usable results for field documentation, including label-ready outputs and report-style summaries derived from those calculations.
Pros
- Arc flash outputs aligned to practical equipment documentation needs
- Calculation inputs map closely to typical electrical one-line data fields
- Label-ready results reduce manual formatting work after calculations
Cons
- Setup depends heavily on data quality and complete protection settings
- Less suited for teams needing broad study automation beyond arc flash
Best For
Electrical teams needing equipment-focused arc flash calculations and label-ready outputs
More related reading
Ecodial Arc Flash
industrial-softwareCalculates arc flash incident energy and arc-flash boundaries using plant electrical drawings and device data in an analysis module.
Result traceability that links each arc flash output back to the exact study inputs
Ecodial Arc Flash centers on arc flash calculation workflows for electrical studies, with a focus on producing calculation outputs aligned to common protection documentation needs. The tool supports engineering steps around fault energy, incident energy, and protective device settings so results can feed into labeling and coordination processes. Output organization emphasizes traceability between input parameters and computed results, which helps review and iteration across study revisions.
Pros
- Arc flash computations for incident energy and related thresholds support deliverable-style outputs
- Strong input-to-result traceability helps reviewers audit assumptions and revisions
- Study structuring supports repeatable calculations across panels and equipment sets
Cons
- Complex input configuration can slow down setup for first-time studies
- Less ideal for users needing heavily customized calculation logic beyond typical workflows
- Export and report formatting may require manual adjustments for specific house styles
Best For
Electrical engineering teams producing repeatable arc flash studies and documentation packages
Arc Flash by PTW Tools
labeling-toolComputes arc flash incident energy and protective device clearing times for switchgear and panelboard labeling workflows.
Incident energy and arc-flash boundary outputs driven by equipment and protective device inputs
Arc Flash by PTW Tools focuses on electrical safety studies by turning equipment, protective device data, and exposure assumptions into arc-flash results. The workflow supports standard arc-flash calculation outputs used for workplace labeling and safe-work planning, including incident energy and arc-flash boundary sizing. The tool emphasizes repeatable calculations across assets by consolidating inputs and maintaining result sets for review and comparison. It is designed for engineers who need consistent documentation rather than one-off estimations.
Pros
- Produces arc-flash outputs tied to protective device selections and equipment details
- Supports consistent study organization across multiple assets and calculation scenarios
- Generates documentation-ready results for labeling and safe-work criteria
Cons
- Workflow depends heavily on accurate electrical input coverage
- Complex studies can feel slow to set up and validate
- Reviewing assumptions and exceptions takes more manual checking than expected
Best For
Electrical safety teams producing repeatable arc-flash studies and documentation
More related reading
PowerCAD Arc Flash
electrical-modelingEstimates arc flash hazard levels from electrical circuit models and protection settings for compliance reporting.
One-line centered arc flash study workflow that produces label-ready documentation
PowerCAD Arc Flash stands out by combining arc flash label calculation and documentation workflows around electrical one-line inputs. The tool supports fault current based arc flash severity calculations and generates results suitable for coordination and labeling deliverables. It targets repeatable studies for medium and low voltage electrical systems rather than one-off calculations. The workflow emphasizes producing usable outputs for field labeling with less manual post-processing than spreadsheet-only approaches.
Pros
- Arc flash calculations focused on producing label-ready results
- Workflow centered on electrical one-line driven study inputs
- Outputs help standardize recurring studies across similar equipment
Cons
- Model setup can be time-consuming for complex or poorly documented systems
- Less flexible than general power engineering suites for custom analysis
- Report customization can require more manual refinement for niche formats
Best For
Engineering teams producing recurring arc flash studies from one-line data
Easypower Arc Flash Pro
hazard-assessmentProduces arc flash incident energy and hazard assessments from system data and protective device coordination inputs.
Scenario-based arc flash calculations tied to equipment data for repeatable labeling outputs
Easypower Arc Flash Pro targets arc flash study production with a calculation workflow built around electrical equipment data entry and label output. The core capabilities include arc flash boundary and incident energy calculation, equipment-based scenario generation, and report generation for field-ready documentation. It also supports integration with broader Easypower workflows so studies can be managed alongside other electrical risk documentation. The tool’s distinct value is focusing on repeatable study outputs rather than spreadsheet-driven manual calculations.
Pros
- Guided workflow for building arc flash scenarios from equipment inputs
- Generates incident energy and arc flash boundary outputs for labeling
- Produces study documentation that reduces manual formatting work
Cons
- Requires careful input data quality to avoid cascading calculation errors
- Limited visibility into calculation assumptions compared with expert tooling
- Scenario setup can feel rigid for highly customized plant configurations
Best For
Electrical safety teams producing recurring arc flash studies with consistent data
More related reading
PSIM Arc Flash
simulation-basedSupports arc flash studies by combining electrical network analysis with protective trip and clearing time modeling.
Tight PSIM integration that reuses electrical study models for arc-flash calculations
PSIM Arc Flash extends the PSIM workflow with arc-flash calculation and documentation for electrical safety studies. It supports configuration of protective device and system parameters, then generates calculation results used for incident energy and arc-flash boundary reporting. The tool integrates with model-based simulation workflows in PSIM, which can reduce re-entry of electrical study data. Reporting focuses on calculation outputs that support labeling and safe work planning.
Pros
- Arc-flash calculations integrated into PSIM model-based study workflows
- Protective device and system parameter setup supports realistic safety scenarios
- Output reporting geared toward incident energy and boundary documentation needs
Cons
- Arc-flash setup can be complex for teams without PSIM modeling experience
- Result customization and report tailoring can feel constrained for edge cases
- Workflow still depends on correct upstream electrical modeling inputs
Best For
Engineering teams using PSIM who need arc-flash studies and documentation
How to Choose the Right Arc Flash Calculation Software
This buyer’s guide helps teams choose arc flash calculation software by mapping software capabilities to real study and labeling workflows. It covers ETAP, EasyPower, Select Arc Flash, Ecodial Arc Flash, Arc Flash by PTW Tools, PowerCAD Arc Flash, Easypower Arc Flash Pro, and PSIM Arc Flash. The guide also highlights where data modeling depth, traceability, and documentation outputs differ across the top tools.
What Is Arc Flash Calculation Software?
Arc Flash Calculation Software computes incident energy and arc-flash boundaries from electrical system inputs and protective device settings so safety labeling and safe-work planning can be built from engineering calculations. The software also ties results to equipment locations such as switchgear cubicles and panelboards, which is why many tools output label-ready results instead of only engineering plots. ETAP demonstrates an integrated workflow where arc flash results are driven by the same short-circuit and protection settings modeled inside the power system study platform. EasyPower demonstrates a one-line centered workflow that produces labeling-ready boundary and incident energy outputs tied directly to equipment modeling.
Key Features to Look For
The features below determine whether arc flash calculations can be produced quickly, audited for assumptions, and exported into label and documentation formats without heavy manual work.
Linked electrical modeling inputs that drive incident energy and arc-flash boundaries
ETAP excels because arc flash results are driven by the same short-circuit and protection settings modeled in ETAP, which improves consistency between fault calculations and safety outputs. Ecodial Arc Flash also emphasizes traceability between exact study inputs and computed results, which helps keep incident energy and boundary values aligned to the data behind them.
Label-oriented outputs that connect equipment to incident energy and boundary results
EasyPower generates label-oriented arc flash results that connect incident energy and boundaries to equipment locations. Select Arc Flash and Arc Flash by PTW Tools also focus on label-ready output formats derived from protective device selections and equipment details.
Equipment-focused workflows that reduce reformatting after calculations
Select Arc Flash focuses on calculation workflows tied to selected electrical equipment in its Select series workflow, which keeps inputs aligned with typical equipment data fields. Arc Flash by PTW Tools similarly produces documentation-ready results that support workplace labeling and safe-work criteria.
Result traceability that ties each arc flash output back to the exact inputs
Ecodial Arc Flash provides result traceability that links each arc flash output back to the exact study inputs, which supports reviewer audits during study revisions. ETAP supports traceable engineering documentation by connecting protective device data and arc flash calculations back to the system data used in load flow and short-circuit models.
Repeatable study structure for consistent multi-asset documentation
Arc Flash by PTW Tools is designed for consistent documentation across multiple assets and calculation scenarios, which reduces variance from one study run to the next. Ecodial Arc Flash supports repeatable calculations across panels and equipment sets through study structuring for repeatable documentation packages.
Model reuse inside an established simulation workflow
PSIM Arc Flash integrates arc-flash calculation into PSIM model-based study workflows so electrical models can be reused for safety outputs. This approach supports realistic safety scenarios because protective device and system parameter setup stays inside the same modeling environment.
How to Choose the Right Arc Flash Calculation Software
Selection should be based on the workflow that best matches existing system modeling practices, safety labeling deliverables, and the level of auditability required for each study cycle.
Match the workflow to the system modeling approach used by the engineering team
For teams already running integrated power system and protection studies, ETAP fits because it computes arc flash outputs inside the broader electrical analysis workflow where short-circuit and protective settings are already modeled. For teams starting from a one-line representation to generate labeling documents, EasyPower and PowerCAD Arc Flash center the workflow on electrical one-line driven study inputs and produce label-ready outputs.
Decide whether outputs must be label-ready or coordination-ready
If the main deliverable is workplace labeling with equipment-linked boundaries and incident energy, tools such as EasyPower, Select Arc Flash, and Arc Flash by PTW Tools generate documentation-ready results that reduce manual formatting. If the deliverable needs broader coordination-ready engineering documentation tied to protective device settings and system models, ETAP provides arc-flash results that are rooted in the modeled electrical conditions and protective device data.
Require input-to-result traceability for revision control and reviewer audits
When audits and revision history are critical, Ecodial Arc Flash supports reviewer checks by linking each arc flash output back to the exact study inputs. ETAP also supports traceable engineering documentation by connecting arc flash calculation inputs to the same system data used in load flow and short-circuit models, which helps keep assumptions consistent.
Pick the tool that fits the protective device data quality and completeness level
If protective device coverage is complete and consistent, Select Arc Flash and Arc Flash by PTW Tools align well because their workflows depend on accurate equipment parameters and protective settings to generate incident energy and arc-flash boundary outputs. If data governance and model quality cannot be tightly controlled, these equipment-dependent tools can slow down studies, while ETAP still demands careful data governance because arc-flash results rely on modeled short-circuit and protection settings.
Choose an environment that reduces re-entry when electrical models already exist
Teams using PSIM can reduce re-entry by selecting PSIM Arc Flash, which reuses electrical study models inside PSIM for arc-flash calculations and documentation. Teams not using PSIM can still target reduced manual effort with label-oriented tools like EasyPower and PowerCAD Arc Flash that produce field-label outputs directly from one-line inputs.
Who Needs Arc Flash Calculation Software?
Arc flash calculation software benefits teams that must turn electrical system and protective device data into consistent incident energy and arc-flash boundary outputs for safety labeling and safe-work planning.
Integrated electrical engineering teams running power system and protection studies end-to-end
ETAP is built for electrical engineering teams that model short-circuit conditions and protective devices in the same platform, which drives arc flash incident energy and arc-flash boundary outputs from the same settings. This fit also makes ETAP a strong choice when traceable engineering documentation is required across load flow, short-circuit, and protection modules.
Electrical engineering teams producing arc flash studies directly from one-line models
EasyPower is designed to generate arc flash hazard results from system single-line models and protective device coordination inputs, which supports boundary and incident energy outputs tied to equipment locations. PowerCAD Arc Flash and Easypower Arc Flash Pro also focus on one-line driven or equipment scenario driven workflows that produce label-ready documentation for recurring studies.
Electrical safety and documentation teams that need repeatable labeling packages across many assets
Arc Flash by PTW Tools emphasizes consistent study organization across multiple assets and scenarios while generating documentation-ready incident energy and arc-flash boundary outputs. Ecodial Arc Flash also supports repeatable arc flash studies and provides input-to-result traceability that helps reviewers audit assumptions across revisions.
Teams already using PSIM for model-based electrical studies
PSIM Arc Flash extends PSIM workflows so protective device and system parameter setup stays inside PSIM and arc-flash results are produced from reused electrical study models. This reduces the risk of re-entering electrical data into a separate arc flash tool when the PSIM modeling workflow is already established.
Common Mistakes to Avoid
Common mistakes usually come from mismatching software workflow to the team’s data structure, deliverable format, or required audit trail.
Expecting accurate results without disciplined input and model quality
Select Arc Flash and Easypower Arc Flash Pro both depend on careful input data quality because incorrect or incomplete equipment and protection inputs can cascade into wrong incident energy and boundary values. ETAP also requires careful data governance across power system and protection modules because arc-flash results are driven by the modeled short-circuit and protection settings.
Choosing a tool that produces engineering outputs when label-ready deliverables are required
ETAP can generate coordination-ready documentation, but the fastest path to equipment-linked labeling comes from EasyPower and Arc Flash by PTW Tools, which produce label-oriented results tied to equipment and protective device selections. PowerCAD Arc Flash and Select Arc Flash similarly emphasize label-ready documentation so field formatting work stays low.
Overlooking traceability needs during study revisions and reviews
Ecodial Arc Flash and ETAP both provide mechanisms for traceability from results back to exact study inputs or modeled system data, which supports reviewer audits during revision cycles. Tools that do not emphasize traceability can increase manual effort when assumptions must be rechecked, even if initial outputs look correct.
Using the wrong environment when electrical models already exist elsewhere
PSIM Arc Flash is the right match when PSIM models already exist because it reuses electrical study models for arc-flash calculations inside the PSIM workflow. Teams that instead use separate one-line tools like EasyPower can face extra data re-entry and integration work to keep protection and system parameters consistent.
How We Selected and Ranked These Tools
We evaluated every tool on three sub-dimensions with fixed weights. Features had weight 0.4, ease of use had weight 0.3, and value had weight 0.3. The overall rating is the weighted average defined as overall = 0.40 × features + 0.30 × ease of use + 0.30 × value. ETAP separated itself by combining arc flash calculation capability with broader integrated power system modeling in one workflow, which strengthened the features dimension because arc flash results are driven by the same short-circuit and protection settings modeled in ETAP.
Frequently Asked Questions About Arc Flash Calculation Software
Which arc flash calculation tool produces results traceable back to the exact study inputs and revisions?
Ecodial Arc Flash emphasizes traceability by linking each arc flash output to the precise fault energy, incident energy, and protective device inputs used in the study. ETAP also supports traceability because its arc flash results tie to modeled short-circuit and protection settings used in the same power system workflow.
What software best suits teams that want arc flash calculations driven by one-line modeling and equipment-level outputs?
EasyPower is built around one-line input modeling and generates equipment-location results plus arc flash boundaries. PowerCAD Arc Flash also centers on one-line inputs and produces label-ready documentation for recurring medium and low voltage studies.
Which option is strongest for integrated electrical power system modeling plus arc flash calculation in a single workflow?
ETAP is designed for integrated engineering because it combines arc flash calculation with broader electrical power system modeling. That workflow uses the same short-circuit and protection settings modeled for coordination-ready results.
Which tool outputs label-ready incident energy and arc flash boundaries for field documentation with minimal manual post-processing?
Select Arc Flash focuses on equipment selection and produces label-ready outputs and report-style summaries derived from the calculations. PowerCAD Arc Flash similarly targets label workflows by generating documentation suitable for field labeling with less spreadsheet-only cleanup.
Which software supports repeatable arc flash studies across many assets with consistent calculation sets?
Arc Flash by PTW Tools is built for repeatable workplace documentation by consolidating equipment, protective device data, and exposure assumptions into repeatable result sets. Arc Flash by PTW Tools also emphasizes consistency across assets compared with one-off estimation approaches.
Which tool is most suitable for teams working primarily from protective device and safety documentation workflows?
Ecodial Arc Flash organizes outputs to match common protection documentation needs while retaining an audit path from study inputs to computed results. Easypower Arc Flash Pro also targets field-ready report generation by producing arc flash boundaries and incident energy tied to equipment-based scenarios.
Which integration is best for organizations already running PSIM model-based simulation workflows?
PSIM Arc Flash extends the PSIM workflow by reusing electrical study models for arc-flash calculation and documentation. This reduces re-entry of electrical study data while producing incident energy and arc flash boundary reporting for labeling and safe work planning.
What tends to be the right tool choice for generating arc flash results from equipment data entry rather than spreadsheet-driven manual calculations?
Easypower Arc Flash Pro uses a scenario-based workflow built around equipment data entry, then generates arc flash boundary and incident energy outputs plus report generation for documentation. ETAP and EasyPower both support model-driven workflows, but Easypower Arc Flash Pro is specifically positioned to reduce manual spreadsheet-driven steps.
Which software is best aligned for creating arc flash boundary sizing and safety planning outputs for workplaces?
Arc Flash by PTW Tools outputs the standard set of arc-flash outputs used for workplace labeling and safe-work planning, including incident energy and arc-flash boundary sizing. EasyPower and PowerCAD Arc Flash also generate arc flash boundary outputs that connect computed incident energy to equipment locations for labeling-ready deliverables.
Conclusion
After evaluating 8 aerospace defense, ETAP stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.
Use the comparison table and detailed reviews above to validate the fit against your own requirements before committing to a tool.
Tools reviewed
Referenced in the comparison table and product reviews above.
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