Hubbell 4295 User Manual

Hubbell Industrial Controls, Inc.

Euclid™ Lifting Magnet Controllers 4295

Resistor Type Automatic Discharge

Specifications 4295 • March 2004 • Replaces July 1990

Features

 Front-Wired Front-Removable components.
 Mechanically interlocked "LIFT" and "DROP"

contactors.

 Permanently connected discharge path com-

pletely independent from the line.

 High-Thermal capacity resistor discharge path.
 Peak magnet induced voltage limited to under

900 volts.

 Long electrical contact life.
 Minimum Maintenance.
 Dribble feature - Standard.

 Ventilated NEMA 3R Enclosure.

Description

The Euclid Type 4295 Magnet Controllers incorpo­rate heavy duty time proven components arranged
to provide optimum control of your lifting magnets.

A mechanically rugged high thermal capacity dis­charge resistor assembly is permanently connected
in parallel with the magnet and provides a safe
discharge path for the stored magnetic energy.
With Euclid magnet controllers, induced volts can­not return to the line, permitting rectified power
supplies to be used without the added expense of
special protective loads or by-pass circuits.

Automatic Discharge
Type Controllers

The Euclid Type 4295 Automatic Discharge Type
Lifting Magnet Controller provides 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 (1L+2L) open. The
stored magnet energy is dissipated in the discharge
resistor. When the discharge voltage declines to
approximately 300 volts, the discharge sensor
module (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
begin the adjustable time reverse current cycle.
After the completion of the timed reverse cycle the
drop relay (DR) and drop contactor (D) are de-ener­gized.

Type Controllers

The Euclid Type 4295 Lifting Magnet Controllers
are suited for many uses from light scrap handling
to the handling of heavy billets of plates. It may be
used with all types and makes of dc lifting magnets.

SYMBOL FUNCTION SYMBOL FUNCTION

DR DROP RELAY MOV SURGE SUPRESSOR

P1 POTENTIOMETER RES1 DISCHARGE RESISTOR

CFU CONTROL FUSE RES2 FORCING RESISTOR (IF USED)

RFU DROP FUSES DSM DISCHARGE SENSOR MODULE

D2 DIODE D DROP CONTACTOR

D1

RECTIFIER, MAGNET DISCHARGE
PATH

1L, 2L LIFT CONTACTOR

Page 1 of 2

Euclid™ Lifting Magnet Controller :: Resistor Type Automatic Discharge 4295

APPROXIMATE DIMENSIONS & WEIGHTS

DO NOT USE FOR CONSTRUCTION PURPOSES

CABINET OUTLINE SIZE 1, 2, 3 & 4 J2M4215

Full Voltage Controllers

CONTROLLER

SIZE

1C

1
2
3
4

FULL VOLTAGE MANUAL DISCHARGE TYPE

System

Size

Voltage

1C 300 max. 12 7.0 - 13 91911-005 19.23 32.86

1C 300 max. 24 7.0 - 13 91911-XXX 19.23 32.86

1C 300 max. 12 13 - 25 91911-006 10.00 17.69

1C 300 max. 24 13 - 25 91911-XXX 10.00 17.69

1 230/250 230/250 7.0 - 13 91843-202 19.23 32.86

1 230/250 230/250 13 - 25 91813-202 10.00 17.69

1 300 max. 24 13 - 25 91915-004 10.00 17.69

1 300 max. 12 13 - 25 91915-002 10.00 17.69

2 230/250 230/250 25 - 50 91814-202 5.00 9.20

2 300 max. 24 25 - 50 91877-202 5.00 9.20

2 300 max. 12 25 - 50 91877-XXX 5.00 9.20

3A 230/250 230/250 50 - 85 91815-202 2.94 4.60

3A 300 max. 24 50 - 85 91880-202 2.94 4.60

3A 300 max. 12 50 - 85 91880-XXX 2.94 4.60

3B 230/250 230/250 85 - 130 91816-202 1.92 2.71

3B 300 max. 24 85 - 130 91863-202 1.92 2.71

3B 300 max. 12 85 - 130 91863-XXX 1.92 2.71

4 230/250 230/250 130 - 175 91817-202 1.43 1.77

4 300 max. 24 130 - 175 91861-202 1.43 1.77

4 300 max. 12 130 - 175 91861-XXX 1.43 1.77

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

Control
Voltage

W H D M MW MH NET WT.

16.37"

16.12"

16.12"

19.12"

19.12"

Magnet
Current

Part

Number

12.00"

21.90"

21.90"

27.90"

27.90"

Min

Cold

Magnet

Ohms

11.00"

10.00"

10.00"

14.25"

14.25"

Max

Cold

Magnet

Ohm

14.00"

24.25"

24.25"

30.25"

30.25"

9.50"

11.50"

11.50"

14.50"

14.50"

12.64"

23.00"

23.00"

29.00"

29.00"

Consult
Factory

PILOT DEVICES & ACCESSORIES ADDITIONS

FOR MAGNET CONTROLLER

DESCRIPTION

"Lift-Drop" NEMA 1 enclosed Master Switch
(Standard for Euclid Lifting Magnet Controllers)

"Lift-Drop" NEMA 3R enclosed Master Switch

Type 4211, Catalog #4211-125MISXI "Lift-Drop"
NEMA 1 Surface Mounting Master Switch

Type 4211, Catalog #4211-125MIFXI "Lift-Drop"
NEMA 1 Flush Mounting Master Switch

Type 4216, Catalog #SWPBC-MXI "Lift-Drop"
NEMA 4 Maintained Type Surface Mounting
Push Button Station

These Pilot Devices are arranged to permit "Dribbling" when
used with Euclid Magnet Controllers.

PART

NUMBER

J2M4215

Consult Factory

4211-99848-001

4211-99848-002

Consult Factory

HOW TO ORDER

Refer to Price List 4295

1. Specify Magnet
Operating Circuit,
COLD.

2. Size of Controller &
Voltage

3. Magnet controller Pilot
Devices and
Accessories are
additions.

4. Order by Part Number

Hubbell Industrial Controls, Inc.

A subsidiary of Hubbell Incorporated

4301 Cheyenne Dr., Archdale, NC. 27262

Telephone [phone] • FAX [phone]

http://www.hubbell-icd.com

[e-mail]