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Max Zs Values icon

Max Zs Values

Pro Certs Software Ltd

Category: Reference
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Rankings updated

Price and ratings

Price
£9.99
Rating
4.4 out of 5
Ratings
19United Kingdom

Versions

Released
12 Feb 201214 years ago
Last update
1 year agoVersion 3.1.18
Requires
iOS 11.0 or later

Details

Size
15.8 MB
Languages
1
Website
procertssoftware.com (opens in a new tab)

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

Countries1In 1 chart right now
Best rank now#44United Kingdom Paid · Reference
Ratings, 7 days—Needs a week of rating history
Longest chart run1 dayUnited Kingdom Paid · Reference

Competitors

Full chart

Top of Paid · Reference in United Kingdom. Max Zs Values is #44 there. Changes are over 7 days.

  1. #1 (number one)
    Collins Bird Guide icon
    Collins Bird GuideNatureGuides Ltd.
    Change unknown
  2. #2
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  4. #4
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  5. #5
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  8. #8
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  9. #9
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  10. #10
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  11. #11
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  12. #12
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  13. #13
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  14. #14
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    Collins Spanish-EnglishUltralingua, Inc.
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  15. #15
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  16. #16
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  17. #17
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  18. #18
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  19. #19
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  20. #20
    American Heritage Dictionary + icon
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Store listing

How the app presents itself on the App Store. Select a screenshot to open it full size.

Max Zs Values screenshot 1 of 8Max Zs Values screenshot 2 of 8Max Zs Values screenshot 3 of 8Max Zs Values screenshot 4 of 8Max Zs Values screenshot 5 of 8Max Zs Values screenshot 6 of 8Max Zs Values screenshot 7 of 8Max Zs Values screenshot 8 of 8

What's new

Version 3.1.18 · 29 Jul 2025 · 1 year ago

29/07/2025 v3.1.18 - UI improvements. - In-app optimisations.

Current rankings

Every chart this app is in right now, best position first.

Max Zs Values chart positions
ChartRank24 h7 daysBestDays on chart
United Kingdom· Paid · Reference#44New entryChange unknown#261

Rank history

Higher on the chart is better: #1 is at the top.

Sign in to see 30 days, 90 days and all history.

United Kingdom · Paid · Reference: best #26, latest #44, over 3 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct and on 9 Oct; the line joins the snapshots on either side.

United Kingdom · Paid · Reference: best #26, latest #44, over 3 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct and on 9 Oct; the line joins the snapshots on either side.

Ranking events

Entries, big moves, #1s and new versions we've recorded.

  1. Entered the Paid · Reference chart at #26United Kingdom

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