Joslyn Clark 5DP Contactors Catalog Page

5DP Contactors DC Control

5DP Definite Purpose Contactors are designed for DC adjustable
speed drive circuits using silicon controlled rectifier switching and
other controls where a combination of normally open and normally
closed power contacts are required. In all applications, reduced
panel space for contactor mounting is made possible through a
compact design and the built-in N.C. dynamic brake power contact
feature.
In silicon controlled rectifier switching circuits, the SCR is normally
phased back prior to contactor opening. Therefore, the N.O. contacts
are not required to interrupt any appreciable current. Under abnormal
conditions such as failure of the SCR or the control circuit, the

contactor may be required to interrupt up to 200% current. The N.O.
contacts are equipped with permanent magnet blowouts to meet this
requirement.

The dynamic brake N.C. contact is required to insert the dynamic
brake resistor and therefore must make up to 200% of rated current
each time the contactor is deenergized.
Jogging is accomplished at low voltage and current. Therefore, the
dynamic brake contact is rated at 1/3 of rated voltage and dynamic
brake current. The permanent magnet blowouts provide this inter­rupting ability.

Normally Closed Double Break Power Contacts - made of silver

1.

cadmium oxide furnish "anti-weld" protection under overload conditions.
Generous size contacts are long lasting, and maintenance-free. All N.C.
power contacts supplied with permanent magnet blowouts to lengthen
contact life.

Normally Open Double Break Power Contacts - incorporate the

2.

same design features as the normally closed power poles. Permanent
magnet blowouts are also furnished on d.c. load applications.

Permanent Magnet Blowouts - mounted to surround the power

3.

contacts, function to quickly quench the arc when breaking loads,
thereby increasing contact life and assuring positive load circuit interrup­ton. All normally closed poles are furnished with permanent magnet
blowouts. Normally open poles can be supplied with or without blowouts
as indicated in the circuit symbols shown on page J6.

Stainless Steel Springs - maintain exact contact pressure and

4.

assure fast contact break (N.O.) and make (N.C.).

Molded Housing - constructed of hot-molded, high impact, high arc

5.

resistant insulating material. This design totally encloses the contacts
and operating magnet in separate compartments and functions to
eliminate internal phase-to-phase short circuits.

Molded Coil - is layer wound, designed for continuous duty service.

6.
Coil construction resists moisture; thermal and mechanical stress. Coil

connections are made to pressure type terminals.
Free-Floating Armature-Magnet Frame - provide quiet, low vibra-

7.
tion, low friction operation. Precision ground pole faces achieve an

absolute air gap which prevents "hanging-up". Magnet frame is sized
for fast, powerful operation and self-seating extends operational life.

Auxiliary Contacts - for 10/40 amp. contactors are available with with

8.
either the front mounted snap action type with quick connect terminals
or the side mounted type with pressure terminals. Contacts for larger
sizes in standard or special make-before-break contact combinations
feature either standard double break silver-to-silver contacts or low
power gold alloy contacts.

9.

Pressure Type Terminals - accessible, up-front location permits
modern straight-thru wiring. Terminals accept stripped, unlugged wires.

J

J3

J

DC CONTROL 5DP Contactors

SCR Drive Contactors - N.O. or N.C. Power Poles

Drive Contactors Preferred Style 500 VDC Max

Type &

Rating
7001

40

amp.

5DP7

75

amp.

5DP3A

110

amp.
5DP4

180

amp.

5DP9

260

amp.

5DP5

360

amp.
5DP8

535

amp.

5DP6

700

amp.

Coil Table #1 Replace with appropriate coil voltage digit.

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60 Hz/Voltage ( ) DC/Voltage ( )

120 1 115 8
240 2 230 9

Coil Table #2 Replace with appropriate coil voltage suffix

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60 Hz/Voltage Suffix DC/Voltage Suffix

120 11 12 72

208/240 21 24 82

208 90 48 32
240 21 120 12
480 41 240 22
600 51

For all DC Coils up to 260 Amp add $202., for 360 & 535 Amp.
add $328., 700 Amp. deduct -$504.00

Poles

Fig.No.N.O. N.C.

0
0
1
2
2
0
0
1
2
2
0
0
1
2
2
0
0
1
2
2

0
0
1
2
2
0
0
1
2
2
0
0
1
2
2
0
0
1
2
2

1
2
0
0
1
1
2
0
0
1
1
2
0
0
1
1
2
0
0
1

1
2
0
0
1
1
2
0
0
1
1
2
0
0
1
1
2
0
0
1

7A
9
1
3
10
7A
9
1
3
10
8
9
1
3
15
8
9
1
3
15

8
9
1
3
15
8
9
1
3
15
8
9
1
3
15
8
9
1
3
15

Open Type
Catalog No. Price

7001-5150­7001-5230­7001-6050­7001-7030­7001-7140­5DP7-5150­5DP7-5230­5DP7-6050­5DP7-7030­5DP7-7140­5DP3A4001­5DP3A3071­5DP3A4011­5DP3A5021­5DP3A5091­5DP4-4001­5DP4-3071­5DP4-4011­5DP4-5021­5DP4-5091-

5DP9-4001­5DP9-3071­5DP9-4011­5DP9-5021­5DP9-5091­5DP5-4001­5DP5-3071­5DP5-4011­5DP5-5021­5DP5-5091­5DP8-4001­5DP8-3071­5DP8-4011­5DP8-5021­5DP8-5091­5DP6-4001­5DP6-3071­5DP6-4011­5DP6-5021­5DP6-5051-

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$208.

269.

179.

227.

296.

756.

1040.

693.

924.

1210.

895.

1323.

857.

1176.

1502.

1222.

1812.

1058.

1533.

2104.

1676.

2405.

1481.

2066.

2793.

3024.

4788.

2772.

4410.

6048.

3402.

5544.

3150.

5040.

7497.

5040.

9576.

4410.

7938.

11970.

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Drive Contactors - Old Style
For New Installations Use Preferred Style

Type &
Rating

7000

10/40

amp.

5DP1

30

amp.

5DP2

56

amp.

5DP3

110

amp.

5DP4

180

amp.

5DP9

260

amp.

5DP5

360

amp.

5DP8

535

amp.

5DP6

700

amp.

The N.C. contact is short time rated for Dynamic Braking
applications. Refer to table on page J7 for N.C. contact ratings.

Poles

N.O. N.C.

0 1 7A 7000-5150- $ 208.
2 0 3 7000-7030- 227.
2 1 10 7000-7140- 296.
0 1 8 5DP1-01( )00 416.
0 2 9 5DP1-02( )00 491.
1 0 1 5DP1-10( )00 378.
1 1 5 5DP1-11( )00 441.
2 0 2 5DP1-20( )00 403.
2 1 6 5DP1-21( )00 466.
2 0 3 5DP1-5021- 441.
2 1 7 5DP1-5051- 504.
0 1 8 5DP2-01( )00 630.
0 2 9 5DP2-02( )00 920.
1 0 1 5DP2-10( )00 605.
1 1 5 5DP2-11( )00 857.
2 0 2 5DP2-20( )00 794.
2 1 6 5DP2-21( )00 895.
2 0 3 5DP2-5021- 832.
2 1 7 5DP2-5051- 935.
0 1 8 5DP3-01( )00 895.
0 2 9 5DP3-02( )00 1323.
1 0 1 5DP3-10( )00 857.
1 1 5 5DP3-11( )00 1176.
2 0 2 5DP3-20( )00 1109.
2 1 6 5DP3-21( )00 1439.
2 0 3 5DP3-5021- 1172.
2 1 7 5DP3-5051- 1502.
0 1 8 5DP4-01( )00 1222.
0 2 9 5DP4-02( )00 1817.
1 0 1 5DP4-10( )00 1058
1 1 5 5DP4-11
2 0 2 5DP4-20( )00 1470
2 1 6 5DP4-21( )00 2041.
2 1 7 5DP4-5051 2104.

0 1 8 5DP9-01( )00 1676.
0 2 9 5DP9-02( )00 2405.
1 0 1 5DP9-10( )00 1481.
1 1 5 5DP9-11( )00 2192.
2 0 2 5DP9-20( )00 2003.
2 1 6 5DP9-21( )00 2730.
2 1 7 5DP9-5051- 2797.

0 1 8 5DP5-01( )00 3024.
0 2 9 5DP5-02( )00 4788.
1 0 1 5DP5-10( )00 2772.
1 1 5 5DP5-11( )00 4410.
2 0 2 5DP5-20( )00 4032.
2 1 6 5DP5-21( )00 5670.

2 1 7 5DP5-5051- 6048.
0 1 8 5DP8-01( )00 3402.
0 2 9 5DP8-02( )00 5544.
1 1 5 5DP8-11( )00 5040.
2 0 2 5DP8-20( )00 4662.
2 1 6 5DP8-21( )00 7119.
2 1 7 5DP8-5051- 7497.

0 1 8 5DP6-01( )00 5040.

0 2 9 5DP6-02( )00 9576.

1 0 1 5DP6-10( )00 4410.

1 1 5 5DP6-11( )00 8442.

2 0 2 5DP6-20( )00 7434.

2 1 6 5DP6-21( )00 11466.

Fig.No.

Open Type
Catalog No. Price

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4
8
5

J4 Discount Schedule JC20