Backplate pre-installation is the practice of installing a charger’s mounting backplate (or wall bracket/base plate) in advance, so the EV charger can be added later quickly with minimal disruption. It is commonly used in new builds, renovations, and phased EV charging rollouts, where civil and electrical works are completed first and the charging hardware is installed in a later stage.
What Is Backplate Pre-Installation?
Many EV chargers mount onto a dedicated backplate that anchors the unit to a wall or pedestal and provides defined entry points for cables, conduit, and fixings. Backplate pre-installation means:
– Fixing the backplate to the wall/pedestal at the correct height and position
– Preparing cable routes and conduit entries aligned with the backplate
– Pulling cables or leaving draw wires ready for future cabling
– Ensuring the mounting surface, anchors, and spacing match the charger specification
– Leaving the charger itself to be installed later as a fast “final fit” step
This approach separates “dirty work” (drilling, trenching, and conduit installation) from final commissioning.
Why Backplate Pre-Installation Matters in EV Infrastructure
Pre-installing backplates reduces time, cost, and operational disruption, especially when chargers will be deployed in phases.
It helps site owners and installers:
– Speed up future charger installation with minimal site downtime
– Avoid repeated drilling, access equipment, and rework
– Coordinate construction schedules (electrical first, hardware later)
– Reduce risk of cosmetic damage in finished interiors
– Prepare sites for additional charger provision and scalable rollout plans
In workplaces, residential buildings, and retail sites, it also makes it easier to add chargers when tenant demand increases.
How Backplate Pre-Installation Works
A typical workflow looks like this:
– Installer confirms charger model, mounting template, and cable entry requirements
– Backplate is mounted to the wall or pedestal with correct anchors and leveling
– Conduit, cable glands, and entry points are aligned to the backplate openings
– Supply and communication cabling is routed or staged for later connection
– The site is left safe and sealed until the charger unit is installed
– At final installation, the charger is hung onto the backplate, wired, tested, and commissioned
For outdoor installations, protection against moisture and vandalism is usually addressed during the pre-installation stage.
Typical Use Cases
– New-build commercial parking where chargers are installed after project handover
– Residential developments that want EV-ready capability per parking bay
– Office buildings rolling out chargers in phases based on employee demand
– Retrofit projects where civil works must be completed before final hardware delivery
– Sites aligning EV installation with utility approvals or grid upgrades
Key Benefits of Backplate Pre-Installation
– Faster final installation and commissioning
– Lower labor cost for future charger additions
– Reduced disruption to tenants, customers, and daily operations
– Cleaner installation quality with better alignment and cable routing
– Easier scaling for multi-charger deployments and phased projects
Limitations to Consider
– The charger model must be selected early, since backplates are model-specific
– Design changes later can cause misalignment (height, conduit entry, spacing)
– Outdoor backplates must be protected from corrosion and water ingress before the charger is installed
– Pre-installed cable tails must be safely terminated and documented to avoid hazards
– A clear handover package (photos, as-built drawings) is needed for future installers
Related Glossary Terms
Charging Station Installation
EV-Ready Infrastructure
Additional Charger Provision
Cable Routing
Conduit System
Commissioning
Pedestal Mounting
Ingress Protection (IP Rating)
Electrical Capacity Planning
Site Design Standards