Identifying Reversing Vs. Wye-Delta Two Contactor Assemblies
We often get calls from customers in the field looking for a replacement reversing contactor for their elevator control. What these technicians do not realize is a wye-delta two contactor assembly can easily be mistaken for a reversing contactor assembly and ordering the wrong unit can cause confusion, delays and headaches. Excluding any bus/jumper bars, the elevator wye-delta assembly and the reverser set-up both utilize the same components: (2) contactors and (1) mechanical interlock. With the same basic components, this is the reason someone might confuse an elevator wye-delta for a reversing contactor.
A reversing contactor (Series CAU) includes reversing power connection kits on both the line and load sides of the contactors. A wye-delta two contactor assembly (Series CA7Y2) is equipped with a load side connector and only a shorting bar on the line side.
For additional information please contact your nearest authorized distributor, sales representative, or call our customer service or technical support lines.