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Unit Substations

Unit Substations

Anord AMS Unit Substations have been the product of choice in the data center industry for many years and are widely recognized as the market leading product for high current load centres by many of the world’s leading data center businesses.

By integrating either VPI or Vacuum Cast transformers into an aesthetically pleasing, naturally ventilated transformer housing, the LV switchgear is close coupled utilizing internal busbars connecting to the matching Low Voltage Switchgear. The Unit Substation forms a composite load centre which can be located close to the UPS or mechanical loads. This significantly reduces civil and cabling costs along with minimizing site coordination, due to a single vendor approach for the package.

Incorporating the client’s choice of circuit breaker manufacturers, Anord AMS Unit Substations offer high density power hub’s within Data Centers without taking up the space of conventionally built UL listed switchgear. Depending on the configuration, there are savings of up to 40% over traditional rear access Unit Substation footprints. Cable management is also exceptionally safe and easy due to the unique  IEC Form 4b Type 7 construction separation; whereby busbars are separate from circuit breakers, circuit breakers are housed in individual compartments separate from each other, and each circuit breaker has a separate dedicated cable termination compartment.

Features and Benefits

  • Reserve redundant transformer/incomerarrangements available utilizing busway
  • Seismically tested and certified
  • Tested to UL 891
  • Front or rear access busbar systems, suitable for thermographic imaging
  • Available with Integrated Exertherm thermal monitoring
  • Fixed or withdrawable circuit breakers available
  • Flexible construction with in-line, back-to-back, U and L shaped configurations
  • Top, bottom, front or rear cable access can be provided
  • Reduced cabling and installation costs
  • Compactfootprint giving civil/structural savings
  • Advanced 3D modelling technique delivers consistent construction standards

Specification Overview

LV Transformer Ratings 400 kVA to 3000 kVA
Busbar System Ampacity 800A to 5000A
LV Busbar System Short Circuit Rating

(50kA/3 cycles) (65kA/3 cycles)

(85kA/3 cycles) (100kA/3 cycles)

Low Voltage Ratings 200V - 600V
Construction Separation IEC Form 4B Type 7
Cable Access Top, Bottom, Front or Rear can be provided
Ingress protection

IP 54, IP 42 or IP 31   

NEMA 1, 2, 3 & 3R

Panel Colour Available in all RAL