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Motor Control Products Available from Power Quality and Drives LLC
Copyright © 2007 Francis J. Martino
A variety of standard controls are available that are not offered in our on-line store.
Just e-mail your specifications to receive a quotation.
Standard controls include:
Relays with NO and/or NC contacts 4, 6, or 8 poles
Connection types available: Screw clamp, Fast-on, Cage Clamp, or Solder pin.
All relays have provision for Screw or DIN Rail mounting.
AC Definite Purpose Contactors
Definite Purpose Contactors were originally designed for the refrigeration industry. The
refrigeration industry went to the control manufacturers and asked for contactors that
would be rated for motor starting that would be lower in cost than the more rugged NEMA
rated contactors that were used for industrial applications. The definite purpose
contactors were developed with the duty cycle capability of the refrigeration industry which
has much fewer starts and stops on a daily basis than industrial machinery. If a definite
purpose contactor is applied to industrial machinery then it will not be covered by
warranty unless the manufacturer specifically approves of the application.
Enclosed Starters, Type 1 Enclosure, w/Start and Stop Pushbuttons
Up to NEMA size 4 is listed in our store. NEMA size 5, 6 and 7 are available upon request.
Enclosed Starters, NEMA 4/12 Enclosure, w/Start and Stop Pushbuttons
Up to NEMA size 5 is listed in our store. NEMA size 6 and 7 are available upon request.
Options available for starters: Disconnects, Type 1, 3R and 4 Enclosures.
Reversing contactors, starters
For those emergency situations when a reversing contactor or starter is needed immediately,
the components may be shipped for you to assemble and wire: two 3-pole contactors, one
overload relay, two auxiliary interlocks (1NO, 1 NC), one mechanical interlock, one
base plate. Specify motor volts, full load amps and coil voltage.
Two Speed, Two Winding Motor Starters
For those emergency situations when a two speed, two winding motor starter is needed
immediately, the components may be shipped for you to assemble and wire: two 3-pole
contactors, two overload relays, two auxiliary interlocks (1NO, 1 NC), one mechanical
interlock, one base plate. Specify motor volts, full load amps and coil voltage.
Explosionproof Starters and Control
Wye-Delta Open-Transition and Closed-Transition Starters. Specify motor volts, full load amps
and coil voltage.
Manual Starters
Circuit Breakers, UL489
General purpose branch circuit protection with fixed thermal and instantaneous protection.
Circuit Breakers, UL508
Motor circuit protection with adjustable thermal and instantaneous protection. Additional
branch circuit protection must be provided upstream.
Reduced Voltage Starters, Solid State
Torque Control Soft Starters
DC Injection Braking
Variable Frequency Drives, various enclosure types including wash-down duty.
Pump Control
Pressure Transducers for liquids and gases
PLCs
Push Buttons, Selector Switches, Pilot Lights
5K, 10 K Potentiometers
NEMA Enclosures up to 72" x 36" x 16"
Fiberglass Enclosures up to 18 x 16 x 10
Submersible Level Sensors, 4-20 mA
DC Motors and Controllers
AC Motors and Drives
Surge Suppressors
Power Factor Capacitors
Medium voltage reduced voltage starters, 2300 VAc to 13,800 VAC.
Medium voltage contactors and across-the-line starters up to 6600 VAC.
Wound Rotor Control
Synchronous Motor Control for fully synchronous motors which includes DC field excitation.
EMI/RFI Filters
Visit the Power Quality and Drives Store.
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