Hubbell Industrial Controls, Inc.
Lifting Magnet Controllers
Specication/Price Sheet • August 2008
4292P
Type 4292P Compact Controller for Scrap Yards
The Type 4292P Yardmaster Pup Controllers incorporate heavy-duty time 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 Pup magnetic controllers induced voltage cannot return to the line, permitting rectied power
supplies to be used without the added expense of special protective loads or bypass circuits.
Description
Application
The Type 4292P Yardmaster Pup Controllers are suited for many uses from light to medium scrap handling
applications. They may be used with all types and makes of DC lifting magnets.
Automatic Discharge Type Controllers
The Type 4292P Yardmaster Pup Automatic Discharge Type Lifting Magnet Controllers provide a fast and clean
release of magnet loads by applying full voltage reverse current to the magnet. The full voltage reverse current
feature permits the operator to promptly return for another lift.
The drop contactor is under the control of the operator’s Master Switch and the Discharge 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 discharge varistor. 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 applying full
voltage reverse current to the magnet and begins the adjustable time reverse current cycle. After completion of the
timed reverse current cycle the drop relay and the drop contactor are de-energized.
YARDMASTER PUP
Automatic Discharge.•
Rated 5-50 amps DC.•
Front-Wired, Front-Removable components.•
Mechanically interlocked “Lift” and “Drop”•
NEMA rated mill duty contactors.•
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 on 115V & 230V controllers.•
Ventilated Indoor/Outdoor NEMA 3R Enclosure.•
Features
13.00
14.00
18.50
24.00
15.00
24.00
Ø 0.44 MTG HLS (TYP)
12.50
Cabinet Dimensions
Approximate Shipping Weight 100 lbs.
Part Numbers and Prices
Controller ampacity is based on being used
with a 50% duty magnet in a 40º C ambient.
DVA.................... Discharge Varistor Assembly
MOV................... Control Suppressor
CFU................... Control Fuse
RFU................... Drop Fuse
RECT./MOV....... Rectier / MOV Assembly
P1...................... Potentiometer Assembly
DR..................... Drop Relay
DSM.................. Discharge Sensor Module
D....................... Drop Contactor
L........................ Lift Contactor
YARDMASTER PUP
Part
Number
Control Circuit
Voltage
List Price
(Sch. KD)
HC4292001301 24 VDC $4900
HC4292001303 12 VDC $4900
HC4292001305 230 VDC $4900
HC4292001307 115 VDC $4900
(Sch. ET)
HCTA4215
Master Switch for
115/230 VDC Operation
$450
ELEMENTARY SCHEMATIC
FOR 115 or 230 VDC
MASTER SWITCH CONTROL
D2.......................
DVA....................
Diode
Discharge Varistor Assembly
MOV................... Control Suppressor
CFU................... Control Fuse
RFU................... Drop Fuse
RECT./MOV....... Rectier / MOV Assembly
P1...................... Potentiometer Assembly
DR..................... Drop Relay
DSM.................. Discharge Sensor Module
D....................... Drop Contactor
L........................ Lift Contactor
ELEMENTARY SCHEMATIC
FOR 12 or 24 VDC
PUSH BUTTON CONTROL
D
L
L
DVA
1L
MOV
RECT
M
RFU
15A
600V
RFU
15A
600V
DSM
P1
L L
DR
RED
WHT
BLK
BLK
(10)
(11)
(12)
(13)
(M1)
(M2)
230 VOLT DC
2
1
(R2)
D
D
CFU
4A
600V
75
83
12/24 VOLT DC CONTROL
300 VOLT DC (MAX)
L
LIFT
DROP
DR
4
L
MOV
11
10
11
D
3
11
D
L
L
DVA
1L
MOV
RECT
M
RFU
15A
600V
RFU
15A
600V
DSM
P1
L L
DR
RED
WHT
BLK
BLK
(10)
(11)
(12)
(13)
(M1)
(M2)
230 VOLT DC
2
1
(R2)
D
CFU
4A
600V
75
86
115/125 or 230/250VOLT DC
LIFT DROP
DR
4
L
L ( - )
D
L ( - )
D
L ( + )
D2
(P) (L)
(R) (D)
3
115/230 VOLT DC CONTROL
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