Hubbell 4292 User Manual

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• Permanently connected 700V discharge path completely independent from the line that protects magnet and generator
High-Thermal capacity varistor discharge path
• Peak magnet induced voltage limited to under 700 Volts
• Long electrical contact life
• Minimum Maintenance
• Dribble control - Standard
• Ventilated indoor/outdoor NEMA 3R enclosure
• Mechanically interlocked “Lift” and “Drop” NEMA rated mill duty contactors
• Rated 250 VDC @ 5-100 amps
Features
• Automatic Discharge

Hubbell Industrial Controls, Inc.

4292

Lifting Magnet Controllers

Type 4292 Compact Controller for Scrap Yards

 

Specification/Price Sheet • August 2008 •

Replaces Jan 2008

 

 

Description

The Type 4292 Yardmaster Controllers incorporated heavy-dutytime proven components arranged to provide optimum control of your lifting magnets.

A mechanically

rugged

high thermal

capacity

discharge

varistor

assembly is permanently connected in parallel with the magnet and provides a safe discharge path for the stored magnetic energy.

With Yardmaster

mag-

net

controllers,

induced

voltage

cannot

 

return

to

the

line, permitting

rectified

power

supplies

to

be

used

without

the

added expense of

special

protective

loads

or bypass circuits.

 

Application

The Type 4292 Yardmaster Controllers are suited for many uses from light scrap handling to the handling of heavy billets or plates. It may be used with all types and makes of DC lifting magnets.

Automatic

Discharge Type Controllers

The Type 4292 Yardmaster Automatic Discharge Type Lifting Magnet Controller provides a fast and clean release of mag-netloads by applying full voltage reverse current to the magnet. The full voltagere-versecurrent feature permits the operator to promptly return for another lift.

The drop contactor is under the control of the operator’s Master Switch

Front-WiredFront-Removablecomponentsand the dis-charge sensor module (DSM). When

the operator’s Master Switch signals the magnet controller to drop the load, the “Lift” contactors (L) open. The stored magnet energy is dissipated in the dis-chargevaristor. When the discharge voltage declines to approximately 300V, the DSM energizes the drop relay (DR) which in turn enables the drop contactor (D) to close applyingfullvoltagereversecur-rentto the magnet and begin theadjust-abletime reverse current cycle. After the completion of the timed reverse cycle the drop relay and drop contactor are deenergized.

Model Numbers & Prices

Part

Control Circuit

List Price

Number

Voltage

 

 

 

(Sch. KD)

HC91883202

230 VDC

$5,600

HC91883204

24 VDC

$5,600

HC91883206

12 VDC

$5,600

 

 

(Sch. ET)

HCTA4215

Master Switch for

$450

230 VDC Operation

 

 

Controller ampacity is based on being used with a 50% duty magnet in a 40° C ambient.

Hubbell Industrial Controls, Inc.

a subsidiary of Hubbell Incorporated

4301 Cheyenne Drive, Archdale, NC 27263

Telephone (336) 434-2800· Fax (336)434-2803

http://www.hubbell-icd.com

Sales@hubbell-icd.com