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ARKTITE

® 

Plugs 

CPP Series, 20 Amperes

Installation & Maintenance Information

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE

IF 285

APPLICATION

ARKTITE CPP Series Plugs are used where power is to be supplied to portable equipment such 

as compressors, conveyors, portable tools, lighting systems, and similar equipment in damp, 

corrosive, or hazardous locations.
CPP Series Plugs are compatible with CPS Series Receptacles and CPR Series Cable Connectors 

(nonhazardous locations) with the same electrical ratings.  Refer to Crouse-Hinds Product Catalog 

for a complete listing of compatible ARKTITE plugs, receptacles, and cord connectors.

CPP Series Plugs are rated at 20 amperes at either 125 or 250 VAC, 60 to 400 Hertz or 18 volts 

DC.  CPP Series Plugs are provided in a 2-wire, 3-pole design with a provision for attachment of 

the grounding wire to the grounding pole and direct connection between plug and receptacle 

housings and grounding pole.
Actual operation must comply with the information stipulated on the plug nameplate. CPP Series 

Plugs should be installed, inspected, and maintained by qualified and competent personnel.

All statements, technical information and recommendations contained herein are based on information and tests we believe to be reliable. The accuracy or completeness thereof are not guaranteed. In accordance with Crouse-Hinds “Terms and 

Conditions of Sale,” and since conditions of use are outside our control, the purchaser should determine the suitability of the product for his intended use and assumes all risk and liability whatsoever in connection therewith.

Eaton’s Crouse-Hinds Business                                                                                                                                                                                                    IF 285 

1201 Wolf Street, Syracuse, New York 13208 • U.S.A.                                                                                                                                                         Revision 3

 

Copyright © 2015                                                                                                                                                                                                             Revised 01/15

                                                                                                                                                                                                                                   Supercedes 12/02 

Type  CPP516 Plug 
Metallic Housing

INSTALLATION

Figure 1. CPP Plug Assembly (Type CPP516 shown.)

1. 

Unscrew cable clamp assembly then remove slipwasher and cable bushing.

2. 

Remove slotted head screws from side of plug body (2 screws on Type CPP516, 1 screw 

on Type CPP512). Then remove insulator contact assembly and insulating sleeve.

3. 

Select the bushing with the closest sliding fit to the cord you are using.

 

NOTE: Use #12 or #14 AWG Type S, SO, ST or STO Cord with range of .312 to .625 

inches diameter. 

 Do not use cord with diameter less than .312”.

4.  

Loosen cable clamp screws and pass cord through cable clamp assembly, clamp end first.  

Pass cord through slipwasher, then through cable bushing and plug body.

* Arktite is the registered trademark of Crouse-Hinds Company.

Figure 2. Cable Insulation

5.  

Strip outer cord jacket and then conductor insulation to dimensions shown in Figure 2.

Figure 3. Insulator/Contact Assembly

6.  

Remove contacts #1 and #2 from insulator by removing slotted head screws in sides of 

contacts (see Figure 3).

Type  CPP512 Plug 

Molded Composition  

Housing

CAUTION

Conductors are identified by the color of insulation on each conductor. These colors agree 

with those given in Section 210-5 of the National Electrical Code for multi-wire branch circuits; 

an additional wire in the cable, uninsulated or identified green, is for grounding and complies 

with the National Electrical Code. If conductors are not identified with exactly these colors, 

these colors may be assumed in making proper connections. Test electrically to verify proper 

conductor identification.

7.  

Solder conductors (except grounding conductor) into each contact wire well following 

established system wiring pattern (see Table 2).  When soldering contacts:

 

• Tin conductor ends first.

 

• Heat and pre-tin wire well.

 

• Use 60/40 rosin core solder.

           • Insert conductor into contact wire well, then solder by   

 

   

melting on conductor until well fills.  Remove heat and    

 

   

hold rigid until solder solidifies.

8.  

Replace contacts in numbered contact recesses in insulator block observing correct 

polarity as shown in Table 2.

9.  

Attach green ground conductor to green ground lug labeled “G”.  Back out set screw part 

way.  Insert conductor between ground stud and “V” shaped end of green ground lug 

(See Figure 4). 

 Do not put conductor under pressure set screw.  Tighten pressure set 

screw to 12-14 in./lb.

WARNING

Electrical power must be OFF before and during installation and maintenance.

Figure 4. Ground Wire Connection

Color of Wire in Cable

White* 

Black 

Green

Numbers on  

Insulator Body

Contact #2 

Contact #1 

Grounding Contact (G)

Green 

Ground 

Lug

Ground 

Conductor

Pressure  

Set Screw

Ground 

Stud

*White wire or terminal must not be used for grounding. If portable cable contains an 

uninsulated wire, or one identified green, this wire is for grounding the portable device. If no 

green or bare wire is in the portable cable, another wire may be connected through plug and 

receptacle connections to conduit or some other non-current-carrying conductor permanently 

grounded in accordance with the National Electrical Code.

NOTE:

 All installations must be electrically tested to assure proper polarity of conductors 

between plugs, receptacles, and connectors.   

IMPORTANT: 

Check insulation resistance to be sure system does not have any short circuits or

uninsulated grounds.
10.     Reassemble Type CPP516 Plugs as follows:

 

•  Insert  insulating  sleeve  into  plug  body  flush  with  inner  shoulder.  Align  screw  hole 

and slot of insulating sleeve with screw holes in plug body.

 

•  Place  insulator/contact  assembly  into  plug  body  with  grounding  lug  (see  Figure  3), 

align with slot in insulating sleeve and polarizing slot on exterior of plug body.

 

•  Replace  slotted  head  screw  through  hole  in  plug  body  and  into  grounding  lug  on 

contact assembly.

 

• Replace slotted head screw through hole in plug body and into insulator block.

11.   Reassemble Type CPP512 Plugs as follows:

 

•  Place  insulator/contact  assembly  into  plug  body  so  that  the  slot  in  insulator  body 

drops over rib inside body. For ease in assembly, align slot with red arrow on exterior 

of plug body.

 

• Replace slotted head screw through hole in plug body and into insulator block.

12.   Slide cable clamp assembly over cable bushing and thread onto plug body assembly.  

Press cord firmly into plug body to relieve strain on conductor/contact connections and 

tighten cable clamp assembly securely to plug body.

13.   Tighten the cable clamp screws to complete assembly of the plug.
ARKTITE plugs and receptacles are polarized so plug enters receptacle only one way. This 

assures proper polarity of conductors through plug and receptacle or cable connector.

MAINTENANCE

Electrical and mechanical inspection of all components must be performed on a regularly 

scheduled basis, determined by the environment and frequency of use.  It is recommended that 

inspection be performed a minimum of once a year.

• 

Inspect all contact wire terminals for tightness.  Discoloration due to excessive heat is 

an indicator of a possible problem and should be thoroughly investigated and repaired as 

necessary.

• 

Clean exterior surfaces making sure nameplates remain legible.

• 

Check tightness of all screws before using.

• 

Inspect housings and replace those which are broken.

• 

Check contacts for signs of excessive burning or arcing and replace if necessary.

• 

Make sure cable clamp is intact and tight.

In addition to these maintenance procedures, we recommend an Electrical Preventive 

Maintenance Program as described in the National Fire Protection Association Bulletin NFPA No. 

70B.

CPS Receptacle

CPP Plug

Single Gang 

Assembly  

Cat. No.

Two Gang 

Assembly  

Cat. No.

Receptacle 

Unit Only Cat. 

No.

Alum. Handle 

Cat. No.

High Impact Molded 

Composition Handle 

Cat. No.

Cable Dia. 

(in.)

CPS152-101

CPS152-201 

CPS152-301

CPS152-102

CPS152-202 

CPS152-302

CPS152R

CPP516

CPP512

.312 to .625

CPS152-111 

CPS152-211 

CPS152-311

CPS152-112 

CPS152-212 

CPS152-312

WARNING

If any parts of the plug or receptacle appear to be missing, broken, or show signs of 

damage, DISCONTINUE USE IMMEDIATELY.  Replace with the proper replacement part(s) 

before continuing use.

WARNING

Electrical power supply must be OFF before and during installation and maintenance.  

Installation and maintenance procedure must be performed by a trained and competent 

electrician.

CPP Series Plug

Cable Diameter (in.)

Aluminum Handle

Molded Composition Handle

0,312 à 0,625

CPP516

CPP512

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