Technical documentation and installer program
Everything you need to spec, install, and commission a Mesh system. CEC-compliant. ESA/Technical Safety BC ready.
System architecture
Mesh Core
Installed in the building's main electrical room. Connects to the service and feeder CTs, communicates with Leaf units over 915 MHz mesh radio, and selects allowed groups based on site limits, stack load, and fairness timing.
- • Monitors building service load via current transformers (CTs)
- • Broadcasts available capacity to all Leaf units every 5 seconds
- • Requires 120V outlet in electrical room
- • DIN-rail mount, fits standard panel
- • CT placement and enclosure requirements confirmed during site assessment
Mesh Leaf
Installed in the owner's parking stall, between the panel circuit and the EV charger. Receives group commands from the Core and applies the commissioned allowed, reduced, or paused state locally.
- • Inline installation — no separate circuit required
- • Compatible with all Level 2 chargers (J1772)
- • NEMA 3R enclosure, suitable for parkade environment
- • Configured during commissioning for the approved circuit and charger
Service CTs inform the Core; Leaf units enforce EVSE pilot limits at each stall.
Final CT ratios, conductor routing, enclosure location, radio path, and fallback setpoints are confirmed during site assessment and recorded in the commissioning package.
If radio communication is lost, each Leaf falls back to a conservative configured charging current instead of allowing unmanaged load.
CTs measure aggregate demand at the service entrance
Calculates available managed-load capacity from the approved load envelope
Receives local radio commands at each participating load
Local output is adjusted; owner equipment operates within commissioned limits
Load management logic
The Core continuously measures total building demand and monitored feeder stacks. Under normal overload handling, it changes the enabled group count one step at a time: reduce one eligible group when a stack approaches the configured threshold, restore one waiting group after stable capacity returns, and rotate long-running and long-waiting groups for fairness.
Failure mode: If a Leaf loses communication with the Core beyond the commissioned timeout, it falls back to the configured safe-minimum or off state for the controlled load. The Core logs the event. The EV charger itself is unaffected; only the managed pilot or local control output changes.
Core power or hardware failure: If the Core unit fails or power to it is turned off, building power continues as normal. Managed loads connected through Mesh are turned off until system power is restored. When power returns, the Core automatically restores communication and resumes safe operation based on the commissioned settings.
Final setpoints, CT ratios, polling intervals, and fallback behaviour are recorded in the commissioning package for each site.
Downloads
Documents are issued with each quoted project and updated with firmware releases.
Compliance and approvals
Become a Mesh installer
Certified installers get priority referrals, advance access to new products, and direct technical support from our engineering team. Half-day training, no cost.