High Isolation Output

Certain applications require floating the output voltage to values beyond the power supply isolation rating. Magna-Power's High Isolation Output Option (+ISO) enables any TS Series, MS Series or MT Series model with a peak output voltage rating of 250 Vdc through 1000 Vdc to be rated for a higher voltage output isolation. Improved isolation is achieved by a novel output stage with improved controller isolation. In addition to being able to float the power supply to a higher output voltage, this option also enables lower voltage units to be tied together in series up to its new higher isolation rating, in accordance with the table below.


The +ISO option is available for models with maximum output voltage rating from 250 Vdc to 1000 Vdc from the following product series:

  • TS Series
  • MS Series
  • MT Series

The +ISO option cannot be combined with the +BD or +WC options. Addition of the +ISO option will cause the product’s wired remote sense feature to be removed.


The output isolation for Magna-Power Electronics TS Series, MS Series and MT Series programmable DC power supplies is as follows, where Vo is output voltage rating of the particular model:

Table 1. Output isolation rating for models with the High Isolation Output (+ISO) option
Output Isolation
Standard, No Option
Output Isolation for Model Rated 250-1000 Vdc
With +ISO Option
Output Isolation for Models Rated Above 1000 Vdc
Standard, No Option Necessary
SL Series 1000 Vdc N/A N/A
XR Series 1000 Vdc N/A ±(2000 Vdc + Vo/2)
TS Series 1000 Vdc ±(2000 Vdc + Vo/2) ±(2000 Vdc + Vo/2)
MS Series 1000 Vdc ±(2000 Vdc + Vo/2) ±(2000 Vdc + Vo/2)
MT Series 1000 Vdc 4000 Vdc 4000 Vdc