Look up the maximum permitted Zs values ( earth loop impedance ) as per BS 7671 2018 18th edition, also includes temperature adjusted values.

Select from the list of protective devices (fuse's, MCB's, RCBO's) and device ratings to calculate the maximum permitted Zs value for your selected protective device and look up manufacture 60947-2 Zs charts.

Features:-
+ BS 7671 18th Edition 2018
+ BS EN 60947-2 manufacture devices charts (some)
+ BS EN device's
+ Fuse's
+ MCB's
+ RCBO's
+ RCD's
+ MCCB's
+ ACB
+ Ze + R1+R2 = Zs calculator
+ 100% values
+ 80% values
+ 0.4 second disconnection times
+ 0.2 second disconnection times
+ 5 second disconnection times

A great electrical app to have to hand when you most need it.

Check out our other electrical apps such as the "Pro Certs" Electrical Testing & Certification App or the Cable Calc App, visit http://www.procertssoftware.com/apps for more info....

http://www.procertssoftware.com
© Pro Certs Software Ltd, All Rights Reserved.
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What's New

V: 3.1.3 - Reduced app size so it runs & downloads faster and takes up less space (included in V: 3.1.2)
V: 3.1.2 - Fixed share bug, you can now share by email, text, facebook, twitter and more...
V: 3.1.1 - Added more manufacture 60947-2 MCCB Zs charts.
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Additional Information

Eligible for Family Library
Eligible if bought after 7/2/2016. Learn More
Updated
September 2, 2019
Size
5.4M
Installs
1,000+
Current Version
3.1.3
Requires Android
4.4 and up
Content Rating
Everyone
Permissions
Offered By
Pro Certs Software Ltd
Developer
Milton Keynes MK15 0DU United Kingdom
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