Dave Wilson, Editor, writes:
We see from your search that you're looking for information on the term "Thermal Overload",
and we have a large number of manufacturers' news releases and technical articles here on Engineeringtalk which will be of interest.
Let me be your guide.
Start with
the news release Contactors and control relays cut costs from
RS Components UK, which we summarised at the time by saying "RS Components' own-brand contactors and control relays meet international standards and have been tested in the RS laboratory to ensure they are robust and reliable in service".
Several months prior to that,
we featured the news release Circuit breaker protects motors up to 15kW from
WEG Electric Motors (UK): "Compact motor circuit breaker incorporates thermal and magnetic trips to ensure full protection of electric motors up to 15kW, 380/440V (32A)".
In November 2006, we covered the news from Rowe Hankins Components
concerning its circuit beaker catalogue
- take a look at Free catalogue on circuit breakers for equipment
which says: "Circuit breakers for equipment experts pack free catalogue with unique experience".
Take a look also at the news release from Maxon Motor UK, Ideal choice for high-speed motor control,
as well as Cordless grinder boasts professional performance from Makita UK,
and Weg complements motor and drive growth from WEG Electric Motors (UK).
See also:
Software models complex servo systems
(April 2006)
Software models the simplest and most complex servo system designs, from motion profile and mechanical performance to power flow throughout the entire electrical and mechanical system
Free tool simplifies starter selection
(January 2006)
Free from Moeller is its new easy-to-use starter selection tool
Single-phase welder is a smooth performer
(December 2005)
OrigoMag is billed as the ideal welding machine for less complex welding jobs that still require high quality
Module adds remote monitoring to relay
(December 2005)
With the launch of a Devicenet module for the Allen-Bradley E1 Plus electronic overload relay, Rockwell Automation reduces the cost of remote motor management
Soft starters are high-efficiency alternative
(September 2005)
The Startmaster55 is a fully integrated complete soft starter solution for electric motors up to 22kW
Relays provide robust motor protection
(July 2005)
ABB has expanded its range of electrical relays with the addition of a new multifunction protection device for medium and large standard MV asynchronous motors
Breakers combine electronic and thermal protection
(September 2004)
A new range of circuit breakers is designed to provide optimal protection in motor applications
Novel technology provides increased protection
(August 2004)
Rockwell Automation is claiming a new standard for entry-level electronic motor protection with the introduction of its Allen-Bradley E1 Plus electronic overload relay
Rugged, low-cost actuators for rotary valves
(June 2004)
The Series 73, R5 is a new rectangular electric actuator for rotary valves that delivers highly reliable service at a price claimed to be unmatched in the industry
It's cool to keep motors protected
(February 2004)
Reliable refrigeration is crucial to the dairy industry - downtime on a refrigeration unit means lost production
Solid-state relays keep safety in mind
(September 2003)
A new range of solid-state relays from Orchard Electronics (Process Controls) keeps safety in mind
Stainless-steel pumps tackle water transfer
(March 2003)
Wyko's new range of Lowara stainless-steel pumps provides an easy solution to all types of drainage and water transfer problems
Contactors gain easy fitting connection bar kits
(March 2003)
A new range of fast and easy-to-fit connection bar kits is the latest addition to ABB's large A line series of contactors from 145 to 750A
Sensorless vector drive delivers dynamic response
(February 2003)
The TCF Series of sensorless vector drives provide OEMs with highly dynamic levels of transient performance, together with precise levels of motor control and up to 200% motor rated torque
Motor protection relays for every application
(September 2002)
Crouzet has a complete range of electronic motor protection relays that provide protection against a range of faults, which if left undetected, could cause permanent damage to an electric motor
Hydraulic diaphragm metering pump performs well
(June 2002)
The Makro/5 HMH hydraulic diaphragm-type metering pump from ProMinent Fluid Controls offers maximum metering capacity from 6000 to 36000 litre/h with a delivery reproducibility of +1%
16A appliance inlet takes breaker onboard
(March 2002)
By incorporating a circuit breaker instead of a fuse, the EF11 power module can be reset after a fault, has higher current limiting characteristics and provides circuit status indication
Test facility boosts circuit breakers
(March 2002)
Rockwell Automation has enhanced its Allen-Bradley 140M motor protective circuit breaker with an innovative addon unit that enables the protective devices and associated circuitry to be tested
Frameless motors offer low degree of torque ripple
(November 2001)
The new Indramat MBT series of torque motors comprises motors in a range of sizes offering maximum torque ratings of up to 4500 Nm at design speeds from 100 to 750 rpm
Compact enclosures for direct-on-line starters
(July 2001)
Rockwell Automation is introducing two new ranges of IP rated enclosures to the Allen-Bradley MCS (Modular Control System) range, only 90mm wide and exceptionally compact for their rating
Progressive cavity pumps for flocculent dosing
(June 2001)
Spectra progressive cavity pumps from ProMinent Fluid Controls are ideal for accurate dosing of polymer solutions such as from the Ultromat 2- and 3-chamber polyelectrolyte batching and dosing systems
Power factor correction capacitors cover 25-60kVAr
(May 2001)
Epcos has unveiled a new series of PhaseCap HD AC capacitors for power factor correction which, for the first time, allows the power range above 25 to 60 Kvar to be covered with a single capacitor
Servo-amplifier range for 10 to 500 Watt DC motors
(March 2001)
Maxon Motor announces details of new servo-amplifier range for 10 to 500 Watt DC motors
SMC support the key for key manufacturing
(August 2000)
Wadco Engineering's new machinery developed in conjunction with SMC Pneumatics (UK) Ltd is an amalgamation of eight previous machines, designed and constructed entirely in-house
Stylish enclosure for high technology starter
(August 2000)
Rockwell Automation announces the Allen-Bradley 198E-AY, an IP 66 rated enclosure for MCS (Modular Control System) starters rated up to 18.5 kW
Motor starters assembled from only two components
(July 2000)
Moeller Electric's PKZM0 fuseless motor protection circuit breakers combine the function of isolation, motor switching, short-circuit and overload protection in a single unit
Stepper drive offers high current in small unit
(March 2000)
The new compact PVP192 Bipolar Stepper Motor Drive, manufactured by Alzanti, measures in at only 89 x 76 x 38mm yet can deliver continuous currents of up to 2 Amps per phase
New guide to Moeller starters and switches
(February 2000)
Moeller Electric has published a new full-colour catalogue dedicated to one of the electrical industry's most complete and versatile ranges of enclosed starters, contactors and switches
HHV components to distribute IKSA relays
(February 2000)
HHV Components has been appointed sole UK distributor for the IKSA range of compact 1 - 40A pcb and power relays