Express Distro Power Block 2000 Overview

The following section provides a product overview of the Power Block 2000.

Product Description

Power Block 2000 is a product within the ChargePoint Express DC fast charging platform. Power Block 2000 is a power cabinet, responsible for AC grid connection, power conversion, and DC power distribution to downstream EVSEs such as external Power Link charging dispensers.

For information on Power Link charging dispensers and other EVSEs in the ChargePoint Express platform, refer to the Express platform documents at ChargePoint Product Reference Documentation.

Exterior Parts

The following shows an exterior view of a single-cabinet Express Distro Power Block 2000:

Exterior Parts

Ref

Part

 Ref Part
(a)

Exhaust (left) door with airflow vents

 (g)

Lifting points
(b)

Exhaust door lock

 (h)

Status LED
(c) Smart Antenna (optional) (i)

Intake (right) door with airflow vents
(d)

Logo plate (customizable)

 (j)

Intake door lock
(e)

Front panel (with customizable vinyl)

 (k)

Rear panel
(f)

Front bottom plate

    

 

Cabinet Configurations

Power Block 2000 is available in single-, double-, or triple-cabinet configurations, as shown below. The double- and triple-cabinet models ship as a single integrated unit, with the cabinets factory‑bolted together.

The side doors for each cabinet section swing open towards the front of the unit.

Interior Parts

The following shows the interior views of the single-cabinet Power Block 2000:

Intake (Right) Side Exhaust (Left) Side
Exterior Parts

Ref

Part

 Ref Part
(a)

Contactor matrix

 (f)

Power Management Controller (PMC)
(b)

DC power modules

 (g)

Safety Hub Board (SHB)
(c)

AC power modules

 (h)

Wire terminals and bus bars, exhaust side
(d)

Auxiliary Power Supply (AUX PSClosed Auxilary Power Supply) modules

 (i)

48 V DC fuse block
(e)

Wire terminals and bus bars, intake side

  

 

The interior parts shown above are present in each cabinet of the double- and triple-cabinet Power Block 2000.

System Description

The Power Block 2000 intakes 3-phase AC grid power and performs power conversion with two types of modules:

  • AC Power Module – The AC power module converts AC input power to DC output power. Up to three modules can be installed into each Power Block 2000 cabinet to scale total power capacity.

  • DC Power Module – The DC power module is an isolated, bidirectional DC/DC converter that conditions power for delivery to downstream EVs.

The Power Block 2000 has two separate DC power distribution buses:

  • DC Grid Bus – The DC Grid Bus is a non‑isolated DC bus (up to 950 V depending on region and application). Multi-cabinet Power Block 2000s can ship with their DC Grid Buses interconnected for power sharing. DC Grid functionality is supported only on 480 V AC and 400 V AC Power Block 2000 models; 600 V AC models do not support DC Grid.

  • DC Output Bus – The DC Output Bus is an isolated DC bus (100–1000 V) that delivers regulated output power to connected EVs. Power flow from the DC Output Bus is routed through the Contactor Matrix, which selectively connects to a set of discrete external DC outputs.

The Power Block provides the following external DC outputs:

  • Power Block 2000 is available with four, eight, or twelve external DC outputs per cabinet, designated EXT A, EXT B, EXT C, and so on through EXT L.

  • Each output can supply power to a single input power path of a Power Link charging dispenser.

The Power Block 2000 is equipped with an Auxiliary Power Supply (AUX PS) system:

  • Auxiliary Power Supply (AUX PSClosed Auxilary Power Supply) Modules – Each cabinet includes AUX PSClosed Auxilary Power Supply modules that generate 48 V DC power for internal electronics and sub-assemblies within the unit.

  • 48 V DC Output – Each Power Block 2000 cabinet provides 48 V DC outputs for supplying power to connected Power Link charging dispensers.

The Power Block 2000 features an integrated system that facilitates safe and reliable communication and control:

  • Power Management Controller (PMC) – The PMC controls power flow within the system. It communicates with the power converters and the contactor matrix to manage the delivery of power to the external DC outputs. The PMC supports Ethernet ports for communication with various components like connected Power Link charging dispensers and interconnected Power Block 2000 cabinets to ensure seamless operation. In the event of a fault, the PMC can instruct the power converters to stop power delivery and open the contactors to isolate the power source.

  • Contactor Matrix – The contactor matrix receives commands from the PMC to open or close the contactors as needed.

  • Safety Hub Board (SHB) – In addition to processing fault reports from the Neutron, the SHB supports four dispenser ports for performing continuous electrical isolation monitoring of connected Power Link charging dispensers. Any faults detected are reported to the PMC.

Wire Terminal and Bus Bar Locations

The following identifies the wire terminals and bus bars accessible from the intake side (right side) of Power Block 2000 (Safety shields are hidden from view).

Express Foundation and Cables Entry

Ref

Part
(1)

Safety Hub ports
(2)

Ethernet ports

(3)

DC terminal block for 48 V DC, soft shutdown switch, door interlock sensor wires
(4)

Shunt trip terminals
(5)

EXT A bus bars
(6)

EXT B bus bars

The following identifies the wire ports, terminals, and bus bars accessible from the exhaust side (left side) of each Power Block 2000 cabinet (Safety shields are hidden from view).

Express Foundation and Cables Entry

Ref

Part
(1)

Ground/PE bar (with wire landing studs)
(2)

EXT D bus bars
(3)

EXT C bus bars
(4)

AC input (L1, L2, L3) and neutral bus bars