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Engineering projects

Configurations, not case studies

Six builds that repeat: each one is named by its deployment type and defined by four parameters — outlet mix, current per feed, metering depth and switching. No customer names, because none were given to us to publish.

Request a quote See the six builds
A completed rack PDU mounted in an open equipment cabinet, its chassis depth and outlet row reading as one continuous line under a single raking light
Unit and cabinet integrated. projects-b1
Model example
20 x 20A (SA-20)
AC 415V, three-phase, 20 outlets at 20A
Outlet mix, example
C39x4 + C13x36
40 outlets on one vertical chassis
Conductors inside
2.5mm2 / 6mm2
Busbar connection to every outlet board
Electrical test
100%
Every unit tested before packing, no batch sampling

Build anatomy

Read a project as a parameter set

Each build below is one row of this table filled in. The commissioning note is the part that is usually missing from a quotation and the part that breaks an install.

Parameters that define a build
ParameterWhat the project fixesCommissioning note
Inlet current16A / 32ABreaker curve chosen against the upstream device
Supply voltage110V ~ 250V ACWide-input build 180 ~ 265V where the supply moves
Outlet rankC13 / C19 mixCable bend radius checked against the rear door
Conductor2.5mm2 / 6mm2
Metering depthtotal / per outletRegister map handed over before the poller is configured
Energy grade1 grade, Scale 0.1 kWhUsed where the reading is invoiced to a tenant
Switchingper-outlet relayOutlet numbering recorded on the drawing and the panel
Data pathSNMP / Modbus / RS485Community string and poll interval recorded at handover
The meter reads current, voltage and power at +/-1%. On a 32A feed that is a fraction of an amp, which is the resolution tenant billing needs.
  • Cabinet
  • Busbar
  • Breaker
  • Outlets
  • Metering
  • Data path
  • Test
  • Packing
A rack PDU installed in a dark equipment aisle, rack rails and a receding row of closed cabinets falling out of focus behind it
Mounted, cabled and recorded. projects-b3

Inside the chassis

Four parts decide whether the build holds up

A rack PDU is four decisions stacked: how the current reaches the outlets, how each outlet is protected, how the current is measured, and how the measurement leaves the cabinet. The project record below lists all four for the reference build.

Connection
busbar to outlet board
Protection
breaker per feed
Conductor
VDE 2.5mm2 / 6mm2
Imperial equivalent
Measurement
+/-1%, current / voltage / power
Reporting
10/100M Ethernet x1 + RS485 x1
  • Connection
  • Protection
  • Measurement
  • Reporting
The event log holds up to 20,000 entries with the built-in RTC keeping time through a power loss, so a cabinet that drops offline still has a usable record when it comes back.

Project route

How a project is run

  1. Configurator sheet

    Outlet count by type, current per feed, mounting orientation and the upstream device. A photograph of the cabinet is enough to start.

    Evidence: parameter sheet, one row per line

  2. Engineering and drawing

    Rank layout, panel cut-out, breaker position and cable entry are drawn against the cabinet that will hold the unit.

    Evidence: outline drawing by mounting orientation

  3. Build and test

    Busbar assembly, breaker wiring and conductor termination, then a full electrical test on every unit: continuity, insulation resistance and function.

    Evidence: 100% electrical test record

  4. Documentation and release

    Per-line specification sheet, meter register map, outlet numbering table and the certificate titles with the legal holder named.

    Evidence: release pack, current revision

Six builds, named by deployment type

  • Data hall row

    High-density row feed with cabinet-level aggregation onto one bus.

    • Model 20 x 20A (SA-20)
    • Outlets C13 / C19 mix
    • Supply AC 415V
    Matching industry page
  • Colocation tenant circuit

    Per-tenant energy reading that can be invoiced without a second meter.

    • Metering per outlet
    • Energy 1 grade, Scale 0.1 kWh
    • Reporting SNMP + Modbus TCP
    Matching industry page
  • Switched vertical

    Zero-U switched build for locked cabinets with no local operator.

    • Outlets 16, C13 / C19
    • Switching per-outlet relay
    • Mounting zero-U vertical
    Switched PDU range
  • Edge cabinet feed

    Single-phase feed with surge protection for a cabinet standing on its own.

    • Feed 1-phase 16A
    • Wide input 180 ~ 265V
    • Protection surge and lightning
    Matching industry page
  • Telecom cabinet

    Narrow chassis for a shallow cabinet, read over a serial bus.

    • Feed 1-phase 16A
    • Data path RS485
    • Monitoring total per feed
    Matching industry page
  • Laboratory bench rack

    Per-outlet data for bench campaigns with frequent re-plugging.

    • Feed 1-phase 10A
    • Ambient -30°C ~ 100°C sensing
    • Log 20,000 entries
    Matching industry page

Start a project

Send the cabinet, get the build

Outlet combination, current per feed, metering depth and remote switching. If the cabinet already has a drawing or a nameplate photograph, send that instead and the parameter sheet comes back filled in.

Request a quote Manufacturing capabilities
Inquiries are answered within 12 business hours. The configured quotation and the per-line specification sheet come back in English.
Macro view of the outlet rank on a completed rack PDU, cables seated, the metal work visible between the outlet bodies
Outlet rank before packing. projects-b5