# InstElectric - Electricity — Electrical installations

> Electrical installation calculation tool for professionals. (iPhone/iPad app by Angel Martinez.)

- Source: https://appshunter.io/ios/app/instelectric-electricity/id1447422315 (this page in markdown: same URL + `.md`)
- Developer: [Angel Martinez](https://appshunter.io/developer/1446956865)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.30/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 19 MB
- Languages: American English, French (France), European Portuguese, European Spanish
- Released: 2018-12-29
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/instelectric-electricity/id1447422315/reviews.md

## What is InstElectric?

Tool to support the calculation of electrical installations that will allow the user (designer / electrician / technician) to perform electrical calculations easily and quickly.

· Dimensioning complete of low voltage circuits with the most frequent installation methods
· Phase cable size, neutral, protective conductor
· Criteria based on the admissible current of the cable, voltage drop and overcurrent protection
· Designation of the most used cables.
· Circuits with automatic circuit breaker until In = 4000 A (Ir rating setting), maximum fuse In = 1600 A (gG type), maximum 12 conductors parallel per phase, maximum size 630 mm²
· Estimate of the maximum short-circuit current (simplified method)
· Forecast of loads of a building destined to houses with several sections: dwellings, common services, commercial premises/offices and garage with/without infrastructure for recharging electric vehicles
· Reactive power of the capacitor bank for the compensation of the power factor (cos φ) and capacity (µF) of the capacitors
· C/K Factor for automatic capacitor bank
· Choice of installation system in the function of the circuit, cable and its situation
· Power in an unbalanced three-phase system
· Overvoltages due to loss of neutral conductor, earth fault and short circuit
· Electricity parameters of a single-phase or three-phase (balanced)
· Transformer performance
· Secondary voltage of a transformer acoording to switch position
· Size of trays and conduits
· Conduits characteristics according to the installation method
· Conversions of wire sizes (mm²-awg) and conduits threads
· Representation of the curves of the protections
· International protection IP - IK

Parameter settings for calculations:
· Constants (voltages, conductivity, temperatures, etc.) that affect electrical calculations
· Protections (circuit breakers and fuses)
· Selection of minimum rate for circuit-breakers with regulation and maximum cable size for multi-conductor grouping per phase
· Method estimation of the reactance
· Conductivity of the conductor depending on the current of the circuit (constant, according to the expected current, maximum cable temperature)
· Use reduction factors by grouping cables/circuits
· Use of factors of diversity/utilization

· Reference documents: IEC Standards, REBT (sp), Technical Application Guide, (UE) 2016/364

IN NO CASE SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT OR INDIRECT DAMAGES AS A RESULT OF THE CORRECT OR INCORRECT USE OF THE APPLICATION

## Key features

- Low voltage circuit dimensioning
- Cable sizing and protection
- Short-circuit current estimation
- Building load forecasting
- Capacitor bank calculations
- Conduit and tray sizing
- Wire size conversions

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/instelectric-electricity/id1447422315/reviews.md

### 3/5 — Landscape mode please

*2022-05-06, version 2.1.2*

My device:
iPad Pro 12.9” (3rd generation, 2018)
iPadOS 15.4.1 or later

Note: I regularly update my review/rating for this.

## Frequently asked questions about InstElectric

### What electrical calculations can InstElectric perform?

InstElectric supports dimensioning of low voltage circuits, cable sizing (phase, neutral, protective), and estimation of short-circuit current. It also handles building load forecasting, capacitor bank calculations, and conduit/tray sizing.

### Does InstElectric support international standards?

Yes, InstElectric references international standards such as IEC Standards and REBT (sp), along with Technical Application Guides and EU regulations, ensuring compliance with relevant guidelines.

### What devices is InstElectric compatible with?

InstElectric is available for iPhone, iPad, and iPod devices, allowing users to perform calculations on their preferred Apple mobile devices.

### How often is InstElectric updated?

The app was last updated on December 29, 2023, with version 2.2.4. This indicates regular maintenance and potential feature additions or improvements.

### What is the age rating for InstElectric?

InstElectric has an age rating of 4+, making it suitable for a wide range of users, including younger individuals learning about electrical concepts.

### Can InstElectric estimate building loads?

Yes, InstElectric can forecast loads for buildings with multiple sections, including dwellings, common services, commercial premises, offices, and garages, with or without electric vehicle charging infrastructure.

### Does InstElectric offer transformer calculations?

InstElectric includes features for calculating transformer performance and determining the secondary voltage based on switch positions, aiding in transformer-related assessments.

### What user feedback is available for InstElectric?

InstElectric has a rating of 4.3 stars from 3 ratings, suggesting generally positive user sentiment regarding its functionality and utility.

## Version history (last 5 releases)

### 2.2.4 — 2023-12-29

* Minor fixes and performance improvements

### 2.2.3 — 2023-05-03

- Minor fixes in curves and index IP - IK

### 2.2.1 — 2023-03-26

* Minor fixes and performance improvements

### 2.2.0 — 2023-01-21

* Minor fixes and performance

### 2.1.8 — 2022-12-28

* Minor fixes and performance

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## More apps by Angel Martinez

- [InstElectric Pro - Electricity](https://appshunter.io/ios/app/instelectric-pro-electricity/id1447888290)
- [Calculation of lighting](https://appshunter.io/ios/app/calculation-of-lighting/id1448345451)
- [Calculation of lighting Pro](https://appshunter.io/ios/app/calculation-of-lighting-pro/id1448371674)
- [Photovoltaic solar panel](https://appshunter.io/ios/app/photovoltaic-solar-panel/id1481439671)
- [SLD \| Electrical diagrams](https://appshunter.io/ios/app/sld-electrical-diagrams/id1534899128)

All apps by Angel Martinez: https://appshunter.io/developer/1446956865

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*