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Description

Max Zs Values
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.
more ↓

Screenshots

#1. Max Zs Values (iOS) By: Pro Certs Software Ltd
#2. Max Zs Values (iOS) By: Pro Certs Software Ltd
#3. Max Zs Values (iOS) By: Pro Certs Software Ltd
#4. Max Zs Values (iOS) By: Pro Certs Software Ltd
#5. Max Zs Values (iOS) By: Pro Certs Software Ltd
#6. Max Zs Values (iOS) By: Pro Certs Software Ltd
#7. Max Zs Values (iOS) By: Pro Certs Software Ltd
#8. Max Zs Values (iOS) By: Pro Certs Software Ltd

What's new

  • Version: 3.1.18
  • Updated:
  • 29/07/2025 v3.1.18
    - UI improvements.
    - In-app optimisations.

Price

  • Today: $9.99
  • Minimum: $1.99
  • Maximum: $9.99
 
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Additional Information

«Max Zs Values» is a Reference app for iOS, developed by «Pro Certs Software Ltd». It was first released on and last updated on . The lowest historical price was $1.99 on , and the highest was $9.99 on . This app has not yet received any ratings or reviews on AppAgg. Available languages: English. AppAgg continuously tracks the price history, ratings, and user feedback for «Max Zs Values». Subscribe to this app or follow its RSS feed to get notified about future discounts or updates.
Max Zs ValuesMax Zs Values Short URL: Copied!

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