---
title: What are the installation do’s and don’ts for electrical engineers working with Verv isolators?
description: Learn the proper installation do’s and don’ts for electrical engineers working with Verv isolators. Includes guidance on drill holes, wiring routes, SD card handling, and protective measures.
---

[Skip to content](https://marketing.verv.energy/en-gb/knowledge-base/what-are-the-installation-dos-and-donts-for-electrical-engineers-working-with-verv-isolators#main-content)

English - United Kingdom

Show submenu for translations

[![Knowledge Base (500 x 200 px) (1)](https://marketing.verv.energy/hs-fs/hubfs/Knowledge%20Base%20(500%20x%20200%20px)%20(1).png?width=250&height=100&name=Knowledge%20Base%20(500%20x%20200%20px)%20(1).png)](https://marketing.verv.energy/en-gb/knowledge-base?hsLang=en-gb)

Open main navigation

Close main navigation

- English - United Kingdom
  
  Show submenu for translations
- [Verv Portal](https://portal.verv.energy/auth/login)

[Verv Portal](https://portal.verv.energy/auth/login)

 How can we help you?

- There are no suggestions because the search field is empty.

1. [Verv Knowledge Base](https://marketing.verv.energy/en-gb/knowledge-base?hsLang=en-gb)
2. [Getting started](https://marketing.verv.energy/en-gb/knowledge-base/getting-started?hsLang=en-gb)

# What are the installation do’s and don’ts for electrical engineers working with Verv isolators?

### When installing Verv 3-phase or single-phase isolators, it’s important to follow precise guidelines to ensure device safety, functionality, and long-term reliability. Below are the key do’s and don’ts in the correct installation sequence.

#### **Do’s**

- **Always read the user manual first** before beginning installation.
- **Ensure the electricity supply is turned off, isolated & locked off** at the source before handling any electrical components.

### **Only use the two bottom drill-through holes** for the 3-phase isolator.

### ![](https://marketing.verv.energy/hs-fs/hubfs/Rich%20Text%20Pasting/google-1752773796197.png?width=453&height=518&name=google-1752773796197.png)

- **Avoid running wires on the right side** of the 3-phase isolator. This area contains the **LED and touch sensor**, which must remain unobstructed.

![](https://marketing.verv.energy/hs-fs/hubfs/Rich%20Text%20Pasting/google-1752773897021.png?width=237&height=364&name=google-1752773897021.png)

- For the **single-phase isolator**, use the **top two** and **bottom left** drill-through holes for wiring.
- The **bottom left hole** is close to the **user button**, so care is needed during setup.

![](https://marketing.verv.energy/hs-fs/hubfs/Rich%20Text%20Pasting/google-1752773949171.png?width=483&height=332&name=google-1752773949171.png)

![](https://marketing.verv.energy/hs-fs/hubfs/Rich%20Text%20Pasting/google-1752773963272.png?width=296&height=447&name=google-1752773963272.png)

- **Always use protective plastic shielding** when installing **metal glands**.
- For **25mm holes**, place the plastic shield on the **bottom outer side wall** of the isolator and mark the holes accordingly.
- Use a **pilot drill first**, then proceed with a **circular hole cutter or step drill bit** for final hole sizing.
- Before wiring the 3-phase isolator or putting the shield inpalce, **ensure the SD cards are properly secured** inside the unit.

![](https://marketing.verv.energy/hs-fs/hubfs/Rich%20Text%20Pasting/google-1752774002330.png?width=602&height=379&name=google-1752774002330.png)

#### **Don’ts**

- **Do not remove the SD cards** from the device under any circumstance.
- **Do not use a power drill or impact driver** on the **screw terminals** or the **device enclosure**—this can cause internal damage or compromise the integrity of the housing.

- [Getting started](https://marketing.verv.energy/en-gb/knowledge-base/getting-started?hsLang=en-gb)
- [Portal Set Up](https://marketing.verv.energy/en-gb/knowledge-base/portal-set-up?hsLang=en-gb)
- [Ongoing Support](https://marketing.verv.energy/en-gb/knowledge-base/ongoing-support?hsLang=en-gb)
- [FAQs](https://marketing.verv.energy/en-gb/knowledge-base/faqs?hsLang=en-gb)
- [Technical Specifications](https://marketing.verv.energy/en-gb/knowledge-base/technical-specifications?hsLang=en-gb)
- [Troubleshooting](https://marketing.verv.energy/en-gb/knowledge-base/troubleshooting?hsLang=en-gb)
- [Licensing and Pricing](https://marketing.verv.energy/en-gb/knowledge-base/licensing-and-pricing?hsLang=en-gb)
- [Security and Compliance](https://marketing.verv.energy/en-gb/knowledge-base/security-and-compliance?hsLang=en-gb)
- [Getting Help](https://marketing.verv.energy/en-gb/knowledge-base/getting-help?hsLang=en-gb)

[![Green Device](https://marketing.verv.energy/hs-fs/hubfs/Green%20Device.png?width=50&height=50&name=Green%20Device.png "Green Device")](http://www.verv.energy)

Sustainable Ventures  
County Hall  
Belvedere Road  
London  
SE1 7PB

Copyright © 2024, Verv Energy (Green Running Ltd)