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| The complete contactor for heavy
industrial applications from 500HP to 900HP |
| CA5 Series contactors provide large
horsepower performance with a design that is up to 40% smaller than traditional
contactors of this rating. The CA5 series consists of four contactors in two
frame sizes covering motors from 500 to 900 HP (at 460V/575V). This line is
well suited for heavy industrial applications utilizing large machinery and
equipment such as rock quarries and mines, or for any large horsepower
application where a rugged and dependable contactor is needed. |
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| Specially-designed, bounce-free
contact system |
| A characteristic of contactors in this
size class is to transmit intense impact forces during operation. CA5
contactors, however, are designed so that the operating planes of the
electromagnets and the contacts are opposed to each other by 90°. This
results in a bounce-free contact system, increasing the contactor’s
mechanical life and raising contact reliability. |
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| Rugged and reliable |
| A massive steel framework supporting the
magnet system ensures high stability in all applications. Despite their rugged
construction, however, overall contactor weight has been reduced considerably
– permitting simpler panel construction and easier assembly. |
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| Unique coil “feeder group”
offers many advantages |
| CA5-700 and 860 contactors are equipped
with a special “feeder group” for the coil that accommodates AC
control voltages of 50 or 60Hz, and a wide range of DC voltages. This coil
arrangement eliminates noise and provides very low pickup and hold-in current.
In addition, the dropout time of the coil can be adjusted within one of three
ranges. |
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| Adjustable auxiliary
contacts |
| CA5 contactors can be equipped with a
maximum of four NO and four NC auxiliary contacts. In addition, the closing
time of the auxiliary contacts (on CA5-700 & 860 contactors) can be
adjusted to meet individual control requirements. |
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| International standards and
approvals |
| All Sprecher + Schuh contactors are
UL-listed and CSA-approved. They also carry the CE mark and meet IEC 9471
requirements. They are approved in virtually every international
market. |
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General Information