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IsoZtran     UR   cUR   cURus

Isolation Transformer
Series: PDU and PSU

Standard Models    Schematics    Dimensions    Cross reference   

IsoZtran photo
  • Step-up or step-down isolation transformer
  • Field selectable taps allow many possible voltage ratings
  • Industry grade, conservative and reliable design
  • 2500V r.m.s. hipot is standard
  • Dual primaries and secondary permit series or parallel operation on either primary or secondary
  • Autotransformer operation possible be connecting primaries and secondary in series
  • Maximum 55°C rise above ambient

The IsoZtran series PDU and PSU reflects a creative design from PowerVolt and provides an unparalleled flexibility in isolation transformers. The IsoZtran features identical dual primary and secondary design. All four windings are rated at 0/104/110/120V for the PDU series. For the PSU series the secondary are rated at 0/208/220/240V. This allows a nominal operation at 110 to 110 volts, 220 to 220 volts, 110 to 220 volts or 220 to 110 volts. Additionally, the IsoZtran can be operated as an autotransformer by connecting a primary group in series with a secondary group, which permits nominal operation at 440 to 220 or 220 to 440 volts.

To further enhance the flexibility, the electrostatic shields are provided grounded to the core using a lug connection, which may be opened if an ungrounded operation is required.

Applications

The isolation transformers are used where a direct connection between the primary and secondary circuits is not desired and the circuits must be isolated. However in addition to the isolating advantages, an electrostatic shield is added to minimize capacitive coupling between the primary and secondary circuits. This helps to minimize the transfer of unwanted power line transients and interference from other sources connected to the power line by capacitive coupling to the secondary circuit.
 
Schematics

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PDU schematic             PSU schematic

Mechanical Drawings

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IsoZtran mechanical drawing

Dimensions

Size VAL WHML MW Mtg & Term
Screw
Wt.
(Lbs.)
250 5 5/16 4 1/4 5 1/4 4 3/8 2 1/2 #10 12
500 5 5/16 5 5/16 5 1/4 4 3/8 3 5/8 #10 18
1000 7 9/16 6 1/4 7 1/4 6 3/4 4 1/8 0.25 33
2000 7 9/16 8 1/4 7 1/4 6 3/4 6 0.25 56
3000 7 9/16 9 1/4 7 1/4 6 3/4 7 0.25 70
5000 7 9/16 10 3/4 7 1/4 6 3/4 8 1/2 0.25 89

Standard Models

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PDS Series

110/120 Volt Dual Primary to 110/120 Volts Dual Secondary (Primary and Secondary may be reversed)

Part No. VA Secondary
Series Parallel
Volts Amps Volts Amps
PDU-250 250 0/208/220/240 1.1 0/104/110/120 2.2
PDU-500 500 0/208/220/240 2.3 0/104/110/120 4.6
PDU-1000 1000 0/208/220/240 4.5 0/104/110/120 9
PDU-2000 2000 0/208/220/240 9 0/104/110/120 18
PDU-3000 3000 0/208/220/240 14 0/104/110/120 28
PDU-5000 5000 0/208/220/240 23 0/104/110/120 46

PSU Series

110/120 Volt Dual Primary to 220/240 Volts Dual Secondary (Primary and Secondary may be reversed)

PSU-250 250 0/416/440/480 0.55 0/208/220/240 1.1
PSU-500 500 0/416/440/480 1.15 0/208/220/240 2.3
PSU-1000 1000 0/416/440/480 2.25 0/208/220/240 4.5
PSU-2000 2000 0/416/440/480 4.5 0/208/220/240 9
PSU-3000 3000 0/416/440/480 7 0/208/220/240 14
PSU-5000 5000 0/416/440/480 11.5 0/208/220/240 23

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We continually improve our products, therefore specifications are subject to change without notice. PowerVolt does not assume liability arising out of use or misuse of any product. PowerVolt does not recommend the use of its products in applications wherein a failure or malfunction may directly threaten life or cause human injury. The user of PowerVolt products assumes all risk of such use and indemnifies PowerVolt against all damages.
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