
Square D Transformers

Schneider Electric Control Power Transformers are designed with low impedance windings for voltage regulation and can accommodate the high inrush current associated with starters, contactors, relays and solenoids. A variety of designs are available to meet the needs of machinery OEMs and panel builders.
Schneider Electric Type T is the most popular and complete line of control transformers and is the solid choice if size and cost are of concern. Type TF transformers consist of two primary fuse blocks and one secondary fuse block, a configuration that meets the majority of overcurrent needs. The fuse blocks are pre-wired and mounted on top of the transformer, giving it the same footprint as the Type T unit. This design frees up space normally used for separate fuse blocks.
Schneider Electric Type T transformers in the MultiTap version are designed to respond to the increased need for voltage and stock flexibility. They combine multiple primary voltages with one or more secondary voltages, all in one transformer. The Universal Type T MultiTap transformer is the most flexible. It allows for standard primary voltages of 208 to 800 V and 110, 115 or 120 V secondary voltages.
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Transformers take one type of voltage and convert it to a different kind of voltage. The amount of energy being used stays the same. When voltage is increased or decreased by a transformer, the amount of energy is not increasing or decreasing, it is simply changing the way the energy is being used. Ohms law (V=IR) shows that the current will change proportionally to the voltage. Therefore when voltage increases, amperage decreases. When voltage decreases, amperage increases. A transformer can take any type of AC voltage and change that voltage either up or down. For example, power companies use transformers to change the voltage from a very high, dangerous voltage down to a level that can be safely used in homes. In industrial applications, transformers step down voltage from 480VAC to 120VAC to use in control circuits.