Single way TMM cabinets are available from 250A to 1600A. They are used to protect the transformer cable tails and are provided with a three pole fixed pattern MCCB with the manufacturers standard overcurrent protection unit.
A range of TMM multi way cabinets are also available with either direct busbar connection to the transformer or alternatively with either an MCCB (800-1600A rated units) or ACB (2000-3200A rated units) located on the transformer incoming supply.
As all specifications are not the same and some site require specific solutions we are able to provide engineered solutions if required to meet the customers needs. Such units could require metering, communications to building metering system, trip units including UEF or REF protection, inter-tripping with MV, specific protection requirements, system interlocks, special cable arrangements or top entry cabling.