Control Power Transformers

The right voltage for any application

Industrial control power transformers step voltages down for use in automated machinery and industrial control circuits. They also isolate control circuits from all power and lighting circuits reducing noise interference. Industrial and construction markets demand rugged, reliable design for manufacturing plants and commercial applications. Siemens offers a wide range of control power transformers that satisfy these demands for both North American and global markets.

Technical specifications for Control Power Transformers

Industry Mall

Class MT

Domestic Applications

Domestic Applications, Class MT

Class MT transformers are available from 50 VA up to and including 5000 VA capacity. Primary voltage is rated up to 600 volts 50/60 Hz and secondary voltage ranges from 24 to 240 volts. These transformers are designed per NEMA ICS2, are UL-506 listed and CSA certified.

Class MT

Class MTG

Domestic & International Applications

Domestic & International Applications, Class MTG

Class MTG transformers are available from 50 VA up to and including 5000 VA capacity. Primary voltage is rated up to 600 volts 50/60 Hz and secondary voltage ranges from 24 to 220 volts. In addition to being UL-506 listed and CSA certified, these transformers meet IEC and EN requirements.

Class MTG

Class KT

Convenient Modifications

Convenient Modifications, Class KT

Class KT transformers are designed for convenient modification of enclosed products and are available from 45 VA up to and including 500 VA. Primary voltage is rated up to 600 volts 50/60 Hz and secondary voltage ranges from 24 to 120 volts. These transformers are designed per NEMA ICS2, are UL-506 listed and CSA certified.

  • Primary and secondary fusing is standard on all kits from 50 VA and higher.

  • Wires with fork connectors at one end, wire ties and mounting screws are included.

Class KT

Sizing Tool

Transformer Selection Process

Sizing Tool - Proper sizing of Control Power Transformers

Selecting a transformer for industrial control circuit applications requires knowledge of terms such as Inrush VA, Sealed VA, Primary Voltage and Secondary Voltage.  Once these circuit variable are determined for a specific application, transformer selection is a simple 5-step process.

Open the Selection Process document to review these terms, learn the 5-step process and select a Siemens Control Power Transformer.

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Engineering Data

For every process step in control panel engineering – including standardized data in the eCl@ss format and prefabricated modules for your E-CAD system.