Triad chassis mount World Series Toroidal transformers are efficient, compact, cool running and cost effective. They are approved to UL 506 and CE IE C 61558-1 and 615 58-2-6, and are constructed with a Class B (130C) rated insulation system. These toroidal transformers have minimal stray fields for quiet operation around sensitive circuits. The transformers consist dual primaries and dual secondaries which allows for flexibility in the input and output voltages. The primary and secondary are both electrically isolated from each other and from the core itself . Chassis mount Toroidal World Series transformers are available in sizes ranging from 25 VA to 2,500 VA and are equipped with leads for connections.
Unit of Measure

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Electrical Rating

N/A 50 V·A

Secondary Voltage in Series

N/A 30 V CT at 1.67 A

Transformer Contact Type

N/A Center Tap

Secondary Voltage in Parallel

N/A 15 V at 3.34 A

Typical Regulation

N/A 12.0 %

Typical Efficiency

N/A 88 %

Typical Temperature Rise

N/A 40 ºC

Height (H)

N/A 33 mm

Primary Voltage

N/A 115 V230 V

Primary Frequency

N/A 50 Hz60 Hz

Industry Standards

N/A 615 58-2-6 CE IEC 61558-1 UL 506

Mechanical Specifications

Outside Diameter

N/A 80 mm


N/A 0.6 kg

Mounting Plate Diameter

N/A 55 mm

Rubber Pads Diameter

N/A 57 mm

Mounting Hardware

N/A M5 x 45 mm

Technical Notes


  1. Series Connections:
      Input1: Series - BLUE and BROWN, Jumper GRAY to VIOLET
        Parallel - BLUE and BROWN, Jumper BLUE to VIOLET, GRAY to BROWN
      Output1:: Series - BLACK and YELLOW, Jumper RED to ORANGE
        Parallel - BLACK and YELLOW, Jumper BLACK to ORANGE, RED to YELLOW


N/A Primary and secondary windings are designed to be connected in series or parallel. Windings are not intended to be used independently. For additional technical information