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Index Definite Purpose Control
H
General Application and Features ........................................... H2
2 Pole AC Contactors - Type DP2 ........................................... H3
2, 3 and 4 Pole Contactors - Type DP3 and DP5 .................... H3
Two 3 Pole Contactors Mechanically and Electrically
Interlocked - Type DP33 .......................................................... H4
Modifications and Parts .......................................................... H5
Engineering Data .................................................................... H6
Index
Definite Purpose Control
H1
Description
Page Number
4
1
0 H
H
H2
AC Contactors
DP - Definite Purpose Control
4
1
0
Application
Definite Purpose Contactors are
intended for use in applications where
the control requirements are well
defined. They are not recommended
for general industrial use.
As a magnetic motor controller, they
are inductively rated for both
maximum continuous current and
maximum locked rotor current
Resistive ratings apply to resistive
heating applications only.
Joslyn Clark definite purpose
contactors have been specifically
designed for use with air conditioning,
heating and refrigeration control
equipment. They are suitable for other
non cycling duty applications requiring
reliable low cost switching.
Interchangeable
Along with being compact in size,
the mounting plate is designed to
facilitate proper alignment and
interchangeability with practically all
competitive 2 pole contactors. Also,
the low v-a permits direct inter-
changeability without requiring a
transformer change.
Terminals
As an optional feature, Joslyn Clark
contactors can be supplied with
pressure clamp terminals which are
UL Recognized for field connec-
tions of #14 through #8 copper
wire. They may also be supplied
with box lugs for #4 through #14 Al/
Cu wire.
Up To 600 Volts A-C Rating
The 2 pole contactors have been
designed with the customer in
mind. They provide clearance
between terminals permitting total
utilization of all quick connects
without requiring special insulation
between terminals on equipment
rated up to 600 volts.
Low Coil Inrush and Sealed VA
Provides maximum efficiency,
permitting potential cost savings on
transformer requirements. This
efficient magnet system assures
clean pick-up and drop-out without
chattering when subjected to slowly
rising and slowly decreasing voltages.
Versatile Operating Positions
Joslyn Clark 2 pole contactors are
designed to operate effectively in the
vertical, horizontial or tabletop
mounting positions. This gives design
engineers maximum versatility for
designing low cost systems. H
Ordering Information
Use complete catalog number. Replace the
(*) with a suffix from the Coil Table.
Example:
DP3C303-24 (A77-309044A-3) is a 3 pole
30 ampere, contactor with a 24 Volt,
50/60 Hz Coil.
1
120.
2
240.
3
24.
Factory
277.
Factory
480.
-120
-240
-24
-277
-480
1
2
3
Factory
Factory
Engineering Data- Page H6
Modification Data- Page H5
Note:
1- comes with cover
Coil Table
AC Contactors
DP - Definite Purpose Control
Model No.
Suffix
50/ 60Hz
Voltage
120
208-240
24
277
480
Cat.No.Suffix
DP3
DP2 DP5
4
4
5
A77-309039A-
*
A77-309040A-
*
A77-309026A-
*
A77-309041A-
*
A77-309042A-
*
A77-309043A-
*
A77-309044A-
*
A77-309027A-
*
A77-309045A-
*
A77-309046A-
*
Locked Rotor Amps.
Type
Poles
Res
FLA
240V
600V
480V
DP3C252-
*
DP3C253-
*
DP3C254-
*
DP3HC252- *
DP3HC253- *
DP3C302-
*
DP3C303-
*
DP3C304-
*
DP3C402-
*
DP3C403-
*
2
3
4
2
3
2
3
4
2
3
4
100
100
120
160
125
125
150
200
150
150
180
240
30
35
40
25
25
30
40
DP3
25, 30 & 40 Amp. (Discount Schedule JC54)
2, 3 & 4 Pole Contactors - Type DP3
Model Number
Amp. Rating
-
3
-
-
-
50
50
50
3
Catalog Number
A77-309046A-15*
90.00
49.00.
52.00.
67.00.
52.00.
56.00.
56.00.
61.00.
76.00.
68.00.
76.00.
A77-309044A-15- *
68.00.
DP3HC303- *
DP3LC503- *
Price
50 and 60 Amp. (Discount Schedule JC50)
Locked Rotor Amps.
Type
Poles
Res
FLA
240V
600V
480V
DP5C502-
*
DP5C503-
*
DP5C602-
*
DP5C603-
*
2
3
2
3
200
240
250
300
300
360
65
75
50
60
Model Number
2 & 3 Pole Contactors - Type DP5
Amp. Rating
DP5
259.
284.
288.
320.
DP5C502- *
DP5C503- *
DP5C602- *
DP5C603- *
Catalog Number
Price
Catalog Number
Model Number
Amp. Ratings
Type
240/277
480
600
240/277
480
600
240/277
480
600
240/277
480
600
600
100
50
50
125
50
50
150
125
100
150
75
60
----
20
10
10
25
10
10
25
21
17
30
15
12.5
----
30
25
25
30
25
25
35
35
35
40
40
40
50
A77-306680A-
*
A77-306658A- *
A77-306660A- *
A77-306657A-
*
A77-306657A-5 *
DP2C202-
*
DP2C252-
*
DP2HC252-
*
DP2C302-
*
DP2HC302-
*
DP2
Volts
LRA
Res
FLA
20, 25 and 30 Ampere (Discount Schedule JC54)
2 Pole Contactors - Type DP2
Price
$ 31.00.
39.00.
41.00
46.00.
H3
Discount Schedule JC50 & 54
1
1
1
1
1
1
1
1
1
1
1
1
43.00

A77-309028A-

DP3C404-
92.00 H
Coil Table
Engineering Data Page H6.
Modification Page H5.
AC Contactors
Mechanically and electrically interlocked contactors for low cost
motor reversing applications such as hoists, doors, gates, etc..
Standard assembly includes mechanical interlock with two
SPDT auxiliary contacts for electrical interlocking.
Four additional auxiliary contacts may be factory added. Two
may be field added.
Use jogging duty rating on full-voltage magnetic controllers for
plug-stop, plug-reverse and jogging duty regarding repeated
interruption of stalled motor current or repeated closing of
high transient currents encountered in rapid motor reversal
beyond five openings or closings per minute or more than ten
in a ten minute period.
$421.00
494.00
470.00
543.00
2
4
2
4
2
4
DP33C253- *
DP33C303- *
DP33C403- *
Example: DP33C253-120 (A77-350735A-
1) is a 3 Phase, 25 amp., reversing
contactor with120V, 50/60 HZ coil and
SPDT auxiliary.
Use complete catalog number. Replace
the (*) with the suffix from the coil table.
Ordering Information
Cat. No.
2 Aux. 4 Aux.
Model No.
2 Aux. 4 Aux
50/60Hz Voltage
Model No.
Catalog No.
Price
Ind. Res.
25
30
40
30
40
50
DP33
150
180
240
125
150
200
100
120
160
240V 480V 600V
7
10
10
5
7
10
200V 240V 460/575V
15
15
25
200V 240V 460/575V
3
5
5
7
7
15
Amp. Rating Locked Rotor Amps.
General Duty
Jogging Duty
25, 30 & 40 Amp.
Current Ratings
Maximum 3 Phase Horsepower Ratings
Type
No. of
Aux.
Contacts
A77-350735A- *
A77-350737A- *
A77-352100A- *
3
5
7
1
/
2
1
/
2
1
/
2
1
/
2
Definite Purpose Control - DP
Reversing Contactors - Mechanically & Electrically Interlocked Type DP33 - Bulletin 7735
1
/
2
Approvals
Underwriters Laboratories, Inc. recognized component
for air conditioning, refrigeration and resistance
heating equipment. File number E6591, Section 27.
Guide number NLDX2.
Canadian Standards Associations (CSA) Guide
361-E-0.2 Class 1222 File 18156-55
4
2
2
120
208-240
24
480
120
240
24
480
120CC
240CC
24CC
480CC
1
2
3
4
5
6
Discount Schedule JC52
H4

527.00
599.00 H
Discount Schedule JC52
H5
KHP-C
2
----
----
A77-356577A-2
Price
Cat. No.
Discount Schedule
Type 1 Enclosure Kit
P6E-01
$80.
JC14
Definite Purpose Contactors-DP
Modifications and Parts
1. Additional modifications may be selected from NEMA HP Section C page C7
2. JC12 Discount Schedule for KHP-C.
Notes:
Field Modifications
1
120V, 50/60Hz
208-240V, 50/60Hz
24V, 50/60Hz
277V, 50/60Hz
480V, 50/60Hz
600V, 60Hz
KTB170-1
KTB170-2
KTB170-3
KTB170-4
KTB170-5
KTB170-6
$ 48.00
48.00
48.00
48.00
48.00
48.00
CDP5-120
CDP5-240
CDP5-24
CDP5-277
CDP5-480
CDP5-600
$ 97.00
97.00
97.00
97.00
97.00
97.00
Type DP5
50 & 60 Ampere
Description
Discount Schedule JC53
Replacement Coil Kits
Type DP3, DP33
25, 30 & 40 Ampere
Types DP2, DP3, DP5, DP, DP33, and DP3S Accessories & Parts Kits
Type DP5
50 & 60 Ampere
Type DP2
20, 25 & 30 Ampere
Descrip-
tion
Type DP3, DP33
25, 30, & 40 Ampere
Discount Schedule JC50
2
Catalog
Number
Price
SPDT Auxiliary Contact Kit
N.O. Auxiliary Contact Kit
N.O. & N.C. Auxiliary Contact
Kit
Contact Cover
Pressure (Box) Lug Kit

(Contains 3 Lugs)

$ 4.00
7.00

----

----

----
A77-352648A
$ 39.00
---

7.00
----
KDP5-10
KDP5-11
----
$41.00
61.00
Catalog
Number
Price
Catalog
Number
Price
Catalog
Number
Price
Catalog
Number
Price
A77-356577A-1
A77-352648A
4.00 H
H6
4
1
0
Engineering Data
DP-Definite Purpose Control
2 Pole Contactors, Type DP2
Max.
Inrush
V A
Max.
Sealed
V A
D-C
Resistance
Ohms
24
120
208-240
31
31
31
7
7
7
18
90
176
11
290
1173
Dimensions (Approximate)
Coil insulation - Class B
Coil connections - Double male 1/4" quick connect
Maximum ambient - 155
o
F
Pick-up
Volts
Coil
Volts
50/60Hz
Approvals
Underwriters Laboratories, Inc. recognized component
for air conditioning, refrigeration, and resistance heating
equipment. File Number #E6591. Guide Number NLDX2.
Canadian Standards Associations (CSA) Guide Number
361-E0.2, File Number LX18156-39.
3 Pole Contactor - Type DP5
Dimensions (Approximate)
Coil Characteristics
Inru