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Industrial Control Transformers
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Transformers

Transformer Disconnects

Transformer disconnects mount inside or outside a control system enclosure and provide power to auxiliary single-phase loads when the main three-phase disconnect is either "on" or "off." The transformer disconnect is normally wired to the line side of the control panel's main disconnect. This convenient source of 120 V power can be used for auxiliary or isolated loads, such as panel lighting, portable power tools, and programmable controller equipment.

The standard enclosure is a lockable NEMA Type 1 for general purpose applications. The disconnect switch is rated at 45 amperes, 600 volts, and has an external handle mechanically interlocked with the enclosure cover. The handle can lock in the "off" position. There is also a standard fusible and grounded transformer secondary.