SNYDER GENERAL CONTACTOR PARTS

A contactor is an electrically controlled switch utilized for switching a power or control circuit. A contactor is controlled by a circuit which has a much inferior power level than the switched circuit. A contactor is one of the things that needs to be checked when an HVAC unit won’t turn off. Snyder General Contactors come in numerous structures with varying capacities and features.

Snyder General Contactors vary from those having a breaking current of several amps to thousands of amps and loads of kilovolts. The physical size of Snyder General Contactors varies from a piece of equipment small enough to pick up with one hand, to huge devices a meter in length.

A Snyder General Contactor is composed of three diverse bits and pieces. The contacts are the current carrying component of the contactor. This includes power contacts, supporting contacts, and contact springs. An electromagnet is needed since it is the driving force to close the contacts. A frame housing the contact and electromagnet is called an enclosure. Attachments are made of insulating materials. Open-frame contactors may have an additional enclosure to protect against dust and oil.

Occasionally an economizer circuit is mounted to lessen the power required to keep a contactor closed; a supplementary contact reduces coil current after the contactor closes. A superior amount of power is required to initially close a contactor than what is necessary to ensure it remains closed. Such a circuit can accumulate an extensive amount of power and allocate the energized coil to stay cooler. Economizer circuits are almost constantly applied on direct-current contactor coils and on large alternating current contactor coils.

A basic Snyder General Contactor will have a coil input. The coil may be restored at the same voltage as the motor, or it may be individually controlled with an inferior coil voltage. This is better suited to be managed by programmable controllers and lower-voltage pilot devices. Specific Snyder General Contactors have a series of coils attached in the motor circuit.

Unlike general-purpose relays, Snyder General Contactors are intended to be straightforwardly connected to high-current load devices. Relays have a propensity for lower capacity and are generally designed for both usually closed and usually detached appliances.