Hubbell Euclid 4295 User Manual

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Hubbell Industrial Controls, Inc.

4295

Euclid™ Lifting Magnet Controllers

Resistor Type Automatic Discharge

Specifications 4295 • March 2004 • Replaces July 1990

Features

Front-WiredFront-Removablecomponents.

Mechanically interlocked "LIFT" and "DROP" contactors.

Permanently connected discharge path completely independent from the line.

High-Thermalcapacity 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-passcircuits.

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-ener-gized.

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

1L, 2L

LIFT CONTACTOR

PATH

 

 

 

 

 

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

W

H

D

M

MW

MH

NET WT.

SIZE

 

 

 

 

 

 

 

1C

16.37"

12.00"

11.00"

14.00"

9.50"

12.64"

 

1

16.12"

21.90"

10.00"

24.25"

11.50"

23.00"

Consult

2

16.12"

21.90"

10.00"

24.25"

11.50"

23.00"

Factory

3

19.12"

27.90"

14.25"

30.25"

14.50"

29.00"

 

4

19.12"

27.90"

14.25"

30.25"

14.50"

29.00"

 

FULL VOLTAGE MANUAL DISCHARGE TYPE

 

 

 

 

 

 

Min

Max

Size

System

Control

Magnet

Part

Cold

Cold

Voltage

Voltage

Current

Number

Magnet

Magnet

 

 

 

 

 

 

 

Ohms

Ohm

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.

PILOT DEVICES & ACCESSORIES ADDITIONS

FOR MAGNET CONTROLLER

DESCRIPTION

PART

NUMBER

 

"Lift-Drop"NEMA 1 enclosed Master Switch

J2M4215

(Standard for Euclid Lifting Magnet Controllers)

 

"Lift-Drop"NEMA 3R enclosed Master Switch

Consult Factory

Type 4211, Catalog #4211-125MISXI"Lift-Drop"

4211-99848-001

NEMA 1 Surface Mounting Master Switch

 

Type 4211, Catalog #4211-125MIFXI"Lift-Drop"

4211-99848-002

NEMA 1 Flush Mounting Master Switch

 

Type 4216, Catalog #SWPBC-MXI"Lift-Drop"

 

NEMA 4 Maintained Type Surface Mounting

Consult Factory

Push Button Station

 

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

HOW TO ORDER

Refer to Price List 4295

1.

Specify Magnet

3.

Magnet controller Pilot

 

Operating Circuit,

 

Devices and

 

COLD.

 

Accessories are

2.

Size of Controller &

 

additions.

4.

Order by Part Number

 

Voltage

Hubbell Industrial Controls, Inc.

A subsidiary of Hubbell Incorporated

4301 Cheyenne Dr., Archdale, NC. 27262

Telephone (336) 434-2800• FAX (336)434-2803

http://www.hubbell-icd.com

Sales@hubbell-icd.com