Definite Purpose Contactor 40AMP/2Pole/240V for Refrigeration & A/C -ALLTEK

Description

Definite Purpose Contactor 40AMP/2Pole/208-240Volt for A/C & Refrigeration Equipment
Model: AL40A2P240V
TORQUE FOR CU 75°C. SCREWS 22 IN LBS/LUGS 40 IN LBS
COIL 240 VAC
50/60HZ
CONTACTOR RATING PER POLE
VAC
FLA
LRA
RES
240/277
40
240
50
400
40
200
50
600
40
160
50
THIS CONTACTOR CAN BE USE IN A WIDE VARIETY OF A/C UNITS & REFRIGERATION
Definition
:
A
contactor
is an electrically controlled switch used for switching a power circuit, similar to a
relay
except with higher current ratings. A contactor is controlled by a circuit which has a much lower power level than the switched circuit.
A contactor has three components. The
contacts
are the current carrying part of the contactor. This includes power contacts, auxiliary contacts, and contact springs. The
electromagnet
(or "
coil
") provides the driving force to close the contacts. The
enclosure
is a frame housing the contact and the electromagnet. Enclosures are made of insulating materials like
Bakelite
,
Nylon 6
, and
thermosetting plastics
to protect and insulate the contacts and to provide some measure of protection against personnel touching the contacts. Open-frame contactors may have a further enclosure to protect against dust, oil, and weather.
Contactors come in many forms with varying capacities and features. Unlike a
circuit breaker
, a contactor is not intended to interrupt a
short circuit
current. Contactors range from those having a breaking current of several amperes to thousands of amperes and 24 V DC to many kilovolts. The physical size of contactors ranges from a device small enough to pick up with one hand, to large devices approximately a meter (yard) on a side.Contactors are used to control
electric motors
,
lighting
,
heating
,
capacitor
banks, and other electrical loads
Contactor
- Part of your outside unit that turns the unit on and off. It receives a low voltage signal from your thermostat causing the contacts to close sending power to the compressor and fan motor. The most common cause of failure for this part is bugs. Bugs are particularly fond of crawling between the contacts. When the contacts close you get a smashed bug that can cause the connection to fail and your unit will not come on.
Please visit our store, more products for HVAC-R industry are in stock and ready for shipping. Thank you for your interest in our products.The Air Conditioning & Refrigeration Products that we sell, are designed for use by “QUALIFIED TECHNICIANS”