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Max Zs Values

Name: Max Zs Values
Availability: InStock
Rating: 3.43 (1 reviews)

Automate BS 7671 calculations, 80% temperature adjustments, and MCCB charts. The essential digital tool for electrical engineers and inspectors to ensure site safety and 18th Edition compliance.

Key Figures

Downloads

27K+

User Rating

3.4/5

Total Ratings

Publisher

Pro Certs Software Ltd

Precision Calculations for BS 7671 Compliance

Streamline your testing and commissioning workflow with instant access to 18th Edition Zs values and automated temperature adjustments designed for professional field engineers.

Automated 80% Values

Eliminate manual calculation errors with automatic temperature-adjusted Zs values, ensuring your onsite testing meets strict safety standards.

Comprehensive Device Library

Instantly access Zs tables for MCBs, RCBOs, and fuses, covering all required disconnection times from 0.2s to 5s at the tap of a finger.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Max Zs Values - The Max Zs Values app interface for selecting electrical devices and ratings to calculate earth loop impedance. — The Max Zs Values app interface for selecting electrical devices and ratings to calculate earth loop impedance.

Max Zs Values - List of MCCB manufacturers in the Max Zs Values app for electrical engineers — List of MCCB manufacturers in the Max Zs Values app for electrical engineers

Max Zs Values - Main menu of the Max Zs Values app showing electrical calculation options for BS 7671 standards — Main menu of the Max Zs Values app showing electrical calculation options for BS 7671 standards

Max Zs Values - Screenshot of the Max Zs Values mobile app showing the Uo 55v and 63.5v earth loop impedance calculator screen — Screenshot of the Max Zs Values mobile app showing the Uo 55v and 63.5v earth loop impedance calculator screen

Max Zs Values - Screen showing Hager MCCB tables in the Max Zs Values app document viewer. — Screen showing Hager MCCB tables in the Max Zs Values app document viewer.

Max Zs Values - Max Zs Results screen showing earth loop impedance and disconnection time tables for electrical circuit breakers — Max Zs Results screen showing earth loop impedance and disconnection time tables for electrical circuit breakers

Max Zs Values - Technical diagram showing earthing system types TN-S, TN-C-S, and TT with their corresponding maximum Ze values — Technical diagram showing earthing system types TN-S, TN-C-S, and TT with their corresponding maximum Ze values

Max Zs Values - Screenshot of the Max Zs Values app interface showing calculation fields for RCD and RCBO Zs values in TT earthing systems. — Screenshot of the Max Zs Values app interface showing calculation fields for RCD and RCBO Zs values in TT earthing systems.

Max Zs Values - The home screen side menu of the Max Zs Values mobile app showing navigation options. — The home screen side menu of the Max Zs Values mobile app showing navigation options.

Description

Calculate and look up the maximum permitted Zs value ( earth loop impedance ). Max Zs Values also includes the 80% temperature adjusted values and a some MCCB 60947-2 manufacture Zs charts. - 100% BS 7671 Zs Values - 80% On Site Guide Zs Values - 0.4 (s) second disconnection times - 0.2 (s) second disconnection times - 5 (s) second disconnection times - Common BS EN Devices: Scroll through the list of protective devices and select the device rating to calculate the maximum permitted Zs value for your selected protective device and rating combination. - 60947-2 MCCB's Zs Tables: Look up the maximum permitted Zs tables for a selection of MCCB manufacture devices (some). - Maximum Zs Features: + Maximum Disconnection Times + BS 7671 18th Edition Zs Tables + Fuse's + MCB's + RCBO's + RCD's in TT earthing systems + Max REC Ze values + 100% values + 80% values + 0.4 second disconnection times + 0.2 second disconnection times + 5 second disconnection times + Uo 55v (U 110v) single phase and Uo 63.5v (three phase) Zs values + BS EN 60947-2 MCCB manufacture device charts (some) There is now a new "Zs Converter" to convert old Zs values to the new 18th edition 230v Cmin Zs values. Check out our collection of electrical apps such as the "Pro Certs" Electrical Certification App for iPad.