Taking care of minutest details

We at Paradise believe that Quality Control is a science. It is an integral part of every manufacturing stage in which every employee participates. It starts with the careful selection of raw material suppliers and the stringent inspection of their products to meet our own demanding standards and continues with rigid quality control of each component through each stage of the manufacturing process. At all times only the most advanced techniques and highest precision measuring equipment, constantly checked and monitored against certified reference standards, are used. Flexible Manufacturing Comes From the Customized Production Mode and Quality Assurance System

Our Corporate goal is to over deliver exceptional quality while maintaining high production standards meeting our customer's expectations ontime and everytime. Our experience and knowledge, along with our passion to pursue excellence, keeps us a step ahead of the competition. Always...

Nominal composition, % Manufacturing method (a) Density, g/cm3 Electrical conductivty, % IACS Hardness Tensile strength Modulus of rupture Data sources(b) Application examples
Calculated Typical MPa ksi MPa ksi
90Ag-10Mo PSR 10.47 10.38 65-68 35-40 HRB - - - - A Air conditioner controls
80Ag-20Mo PSR 10.44 10.36 59-62 38-40 HRB - - - - A Light and medium duty applications, automotives circuit breakers
75Ag-25Mo PSR 10.42 10.33 58-61 44-47 HRB - - - - A
70Ag-30Mo PSR 10.41 10.31 56-60 46-48 HRB - - - - A
65Ag-35Mo PSR 10.39 10.30 55-64 49-55 HRB - - - - A Automotic circuit protectors starting switches
60Ag-40Mo PSR 10.38 10.28 55-62 55-62 HRB - - - - A
50Ag-50Mo INF 10.35 10.10-10.24 45-52 70-80 HRB - - 758 170 C,A Air and oil-circuit breakers, aircing tips, traffic signal relays, home circuit breakers
  PSR 10.35 10.14 50 65 HRB     552 80 C,A
45Ag-55Mo INF 10.33 10.10-10.32 44-58 75-82 HRB         A
40Ag-60Mo INF 10.32 10.10-10.22 42-49 80-90 HRB         C,A Aircrafts switches, breakers among tips electric razors, air and oil-circut breakers
  PSR 10.32 10.12 45 50-68 HRB(C)     676 98 C,A
35Ag-65Mo INF 10.30 10.00-10.08 40-45 82-92 HRB         A
30Ag-70Mo INF 10.29 10.00-10.31 35-45 85-95 HRB 414 60 931 135 C,A Air circuit breakers, low-erosion arcing tips
25Ag-75Mo INF 10.27 10.27 31-34 93-97 HRB 414 60 958 139 C,A
20Ag-80Mo INF 10.26 10.23-10.26 28-32 96-98 HRB 407 59 965 140 C,A Arcing contacts, heavy duty electrical applications
15Ag-85Mo INF 10.24 10.18 28-31 97-102 HRB         G
10Ag-90Mo INF 10.23 10.13 27-30 97-102 HRB         G Semiconducting material
Silver/cadmium oxide
97.5Ag-2.5CdO PSR 10.42 10.21 85 22 HRF(c) 110(c) 16(c)     C  

 

 

 

 

 Aircraft circuit breaker, aircraft relays, automotive relays, truck controls, snap switches, contactors, motor controllers,  circuit breakers, governor relays

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
  PSE 10.42 10.42 95 37 HRF(c) 131(c) 19(c)     E,C
          60 HRF(d) 172(d) 25(d)      
95Ag-5CdO PSR 10.35 9.50-10.14 80-90 32 HRF(c) 110(c) 16(c)     C,A
  PSE 10.35 10.35 92 40 HRF(c) 131(c) 19(c)     E,C
          70 HRF(d) 172(d) 25(d)      
  IO 10.35 10.35 80 40 HRF(c) 186(c) 27(c)     E,C
          75 HRF(d) 241(d) 35(d)      
  PPSE 10.35 10.35 85 70 HRF(c) 207(c) 30(c)     E,C
          90 HRF(d) 248(d) 36(d)      
90Ag-10CdO PSR 10.21 9.30-9.80 72-85 42 HRF(c) 103(c) 15(c)     C,A
  PSE 10.21 10.21 84-87 46 HRF(c) 172(c) 25(c)     W,E,A.C.T
          80 HRF(d) 228(d) 33(d)      
  IO 10.21 10.21 75 45 HRF(c) 186(c) 27(c)     W,E,C,M
          81 HRF(d) 262(d) 38(d)      
  SF                 E,W
  PPSE 10.21 10.21 82 71 HRF(c) 269(c) 39(c)     E,C
88Ag-12CdO PSE 10.3 10.2 81.0 90 HRF(d) 317(d) 46(d)      
          60 HV(c)         E,M,W
          95 HV(d)          
87Ag-13CdO     9.20 43 56 HRF(c)         A
86.7Ag-13.3CdO IO 10.11 10.11 68 48 HRF(c) 200(c) 29(c)     E,C
          84 HRF(d) 262(d) 38(d)      
86.5Ag-13.5CdO PPSE 10.11 10.11 75 70 HRF(c) 276(c) 40(c)     E,C
          90HRF(d) 324(d) 47(d)      
85Ag-15CdO PSR 10.06 8.60-9.58 55-75 35 HRF(c) 83(c) 12(c)     E,C,A,M
  PSE 10.06 9.90-10.06 55-75 57 HRF(c) 193(c) 28(c)     E,T,C,A,M,W
          80 HRF(d) 241(d) 35(d)        
  IO 10.06 10.06 65 50 HRF(c) 207(c) 30(c)     W,C,E  Pressure and temperature controls

 

 

 
          85 HRF(d) 269(d) 39(d)      
  SF                 E,W
  PPSE 10.06 10.06 72 70 HRF(c) 276(c) 40(c)     C
          90 HRF(d) 331(d) 48(d)        
83Ag-17CdO IO 10.01 10.01 62 52 HRF(c) 214(c) 31(c)     C,E  

 Aircraft circuit breakers, aircraft relays, truck controls, contactors, circuit breakers, governor relays

 

 

 

 

 
          88 HRF(d) 276(d) 40(d)      
  PPSE 10.01 10.01 70 70 HRF(c) 276(c) 40(c)     C,E
          90 HRF(d) 352(d) 51(d)      
80Ag-20CdO PPSE 9.93 9.93 68 70 HRF(c) 276(c) 40(c)     C,E
          90 HRF(d) 345(d) 50(d)      
75Ag-25CdO PPSE 9.79 9.79 60           C,E

Silver-graphite
99.75Ag-0.25C PSR 10.41 9.70-10.40 95-103 33-45 HRF(c) 172(c) 27(c)     C,A,S Automotive regulators, low voltage make-break contacts, sliding contacts 

 

 

 
          70-73 HRF(d) 255(d) 37(d)      
99.5Ag-0.5C PSR 10.31 9.60-10.30 92-102 26-44 HRF(c) 169(c) 24.5(c)     C,A,S
          69-72 HRF(d) 252(d) 36.5(d)      
99.25Ag-0.75C PSR 10.22 10.21 90-100 39 HRF(c) 165(c) 24(c)     C
          70 HRF(d) 247(d) 35.8(d)      
99Ag-1C PSR 10.13 9.40-10.12 87-99 24-36 HRF(c) 162(c) 23.5(c)     C,A,S
          68-69 HRF(d) 241(d) 35(d)        
98.5Ag-1.5C PSR 9.96 10.04 97 33 HRF(c) 152(c) 22(c)     C,A  

 Mate with other contact materials in circuit breakers

 

 

 

 

 

 

 

 
          66 HRF(d) 231(d) 33.5(d)      
98Ag-2C PSR 9.79 9.15-9.57 82-90 22 HRF(c)         C,A,S
          65 HRF(d)          
97Ag-3C PSR 9.46 8.80 55-62 20 HRF(c)         A,S
          60 HRF(d)          
97Ag-3C PSE 9.10 8.90 86 42 HV         W

96Ag-4C

 PSE 9.15 8.8 79 41 HV         W
95Ag-5C PSR 8.88 8.30-8.68 55-62 25 HRF(d)         C,A,S
  PSE 8.88 8.84 75 40 HRF(d)         W,C
93Ag-7C PSR 8.37 7.80 50-57 15 HRF(c)         C,A,S  
          45 HRF(d)         C,A,S  
90Ag-10C PSR 7.69 6.30-7.20 43-53 13 HRF(c)         W,C,A,S  
          30 HRF(d)            
Silver-lron
90Ag-10Fe PSR 10.16 9.60-10.25 87-92 48 HRF(c) 214(c) 31(c)     C,A Wall switches, thermostat controls 
          81 HRF(d) 272(d) 39.5(d)      
Silver-nickel
99.7Ag-0.3Ni   10.49   100 53 HR15T(c)         T

......
          79 HR15T(c)            
95Ag-5Ni PSR 10.41 9.80-10.41 80-95 32 HRF(c) 165(c) 24(c)     C,A,S  Appliance switches 
          84 HRF(d)            
90Ag-10Ni PSR 10.31 9.70-10.32 75-90 35 HRF(c) 172(c) 25(c)     W,C,S,A,E  Low rating line starters 
          89 HRF(d)            
85Ag-15Ni PSR 10.22 9.50-10.02 66-80 40 HRF(c) 186(c) 27(c)     W,C,A,S  Circuit breakers 
          93 HRF(d)         A,E  
80Ag-20Ni PSR 10.13 9.30-9.50 63-75 52-59 HRF(c)         W,E,A,S  

 

 

 Circuit breakers, disconnect switches 

 

 

 

 

 

 
          80 HRF(d)          
75Ag-25Ni PSR 10.05 9.20 59 61 HRF(c)         S
70Ag-30Ni PSR 9.96 9.40-9.53 55-56 42 HRF(c)         W,C,S,A
          87 HR(d)          
65Ag-35Ni PSR 9.88 9.00 49 26 HR30T(c)         S
60Ag-40Ni PSR 9.80 8.90-9.60 44-47 40 HR30T(c) 241(c) 35(c)     W,C,S,A
          92 HR30T(d) 414(d) 60(d)      
  PSE 9.80 9.60 60 46 HR30T(c)         S
55Ag-45Ni PSR 9.71 8.80 41 25 HR30T(c)         S
50Ag-50Ni PSR 9.63 9.00 38 50 HR30T(c)         S  
45Ag-55Ni PSR 9.56 8.50 35 30 HR30T(c)         S  
40Ag-60Ni PSR 9.48 8.80 32 35 HR30T(c)         S  Circuit breakers
          97 HR(d)            
  PSE 9.48 9.30 40 68 HR30T(c)         S  

 Transformer protectors, contactors, relays 

 

 

 
35Ag-65Ni PSR 9.40 8.60 30 40 HR30T(c)         S
30Ag-70Ni PSR 9.32 8.50 27 40 HR30T(c)         S
25Ag-75Ni PSR 9.25 8.20 24 40 HR30T(c)         S
20Ag-80Ni PSR 9.17 8.00 21 35 HR30T(c)         S
Silver/tin oxide
92Ag-8SnO2 PSE 10.08 10.00 88 58 HV(c) 205-230 30-33.5     E,M,W Light switches, relays, motor vehicle switches 
          92 HV(d)          
90Ag-10SnO2 PSE 9.98 9.97 82 64 HV(c) 215(c) 31(c)     E,M  Light switches, relays, motor vehicle switches 

 
          98 HV(d)          
88Ag-12SnO2 PSE 9.70 9.68 72 72 HV(c)         E,M,W Low-voltage motor contactors and switches rated to 10A. Low-voltage circuit breakers rated to 100A.  
          105 HV(d)          
Silver/zinc oxide
92Ag-8ZnO PSE 9.81 9.80 77 60-65 HV(c)         E,M,W Low-voltage circuit breakers rated to 200A.  
Tungsten carbide-silver
65Ag-35WC INF 11.86 11.53-11.85 55-60 50-65 HRB 272 39.5 483 70 C,A  

Aircraft contactors, lighting relays, low-voltage switches, circuit breakers 

 

 

 

 
  PSR 11.86 11.10-11.80 50-60 50-62 HRB         C,A
60Ag-40WC PSR 12.09 11.40-11.92 46-55 60-70 HRB         A
58Ag-42WC PSR 12.17 11.86-11.97 50-55 75-85 HRB         C
50Ag-50WC INF 12.56 12.12-12.50 43-52 75-85 HRB 276 40 793 115 C,A
40Ag-60WC INF 13.07 12.70-12.92 40-47 90-100 HRB 379 55 827 120 C,A Heavy-duty circuit breakers
38Ag-62WC INF 13.18 12.92-13.29 35-38 90-100 HRB 552 80     C
35Ag-65WC INF 13.35 12.90-13.18 30-37 95-105 HRB         A  Semiconducting material 
20Ag-80WC PSR 14.23 13.2 19 400 HV(c)         M  Suppression of tungstate formation in low-voltage and high-voltage circuit breakers
          470 HV(d)            
Tungsten-silver
90Ag-10W INF 11.00 10.30-11.20 90-95 20-33 HRB         C,A  Controls, automatic circuit protectors, wall switches
85Ag-15W PSR 11.27 10.60-11.30 85-90 25-38 HRB         A  

 

 

 Current-carrying contacts in circuit breakers, light-duty contactors 

 

 
80Ag-20W PSR 11.55 10.90-11.70 80-85 30-43 HRB         A
70Ag-30W PSR 12.16 12.00 72-80 40-47 HRB         A
65Ag-35W PSR 12.48 12.1 68 80 HV(c)         M
          90 HV(d)          
60Ag-40W PSR 12.84 12.10-12.60 60-65 50-60 HRB         A
35Ag-65W INF 14.92 14.20-14.77 45-53 80-93 HRB     827 120 C,M Automotive starting switches, circuit breakers
  PS 14.92 13.90-14.20 47-50 85-87 HRB         C
  PSR 14.92 14.65-14.74 47-50 55-65 HRB(c)     572 83 C
30Ag-70W INF 15.42 15.02 40-50 85-93 HRB         A Motor starters, aircraft equipment, circuit breakers, contactors, computers, arcing tips

 

 

 
27.5Ag-72.5W INF   15.56 49 90 HRB 483 70 896 130 C
  PSR   15.44   58-68 HRB(c)     586 85 C
25Ag-75W INF 15.96 15.25-15.40 40-50 85-95 HRB         A
20Ag-80W INF 16.53 16.18 35-40 91-100 HRB         A
15Ag-85W INF 17.14 16.60-17.05 32-41 90-100 HRB 448 65 758 110 A,C Motor governers
10Ag-90W PSR 17.81 17.25 29-35 95-105 HRB 379 55 758 110 A Semiconducting material
Tungsten carbide-copper
50Cu INF 11.39 11.00-11.27 42-47 90-100 HRF     1103 160 C.A Arcing contacts in oil switches, wiping shoes in power transformers
44Cu INF 11.77 11.64 43 99 HRF     1241 180 C
30Cu INF 12.78 12.65 30 38 HRC          
Tungsten-copper
75Cu-25W PSR 10.37 9.45-10.00 50-79 35-60 HRB     414 60 C,A Current-carrying contacts
70Cu-30W   10.70 10.45 76 59-66 HRB         A
65Cu-35W   11.06 11.40 72 63-69 HRB         A Vaccum interrupter
60Cu-40W   11.45 11.76 68 69-75 HRB         A Oil-circuit breakers, arcing tips
50Cu-50W INF 12.30 11.90-11.96 45-63 60-81 HRB         A
44Cu-56W INF 12.87 12.76 55 79 HRB 434 63 827 120 C
40Cu-60W INF 13.29 12.80-12.95 42-57 75-86 HRB         A Oil-circuit breakers, reclosing devices, arcing tips, tap change arcing tips, contactors
35Cu-65W INF 13.85 13.35 54 83-93 HRB         A
32Cu-68W INF 14.20 13.95 50 90 HRB     896 130 C
 
30Cu-70W INF 14.45 13.85-14.18
36-51
 86-96 HRB     1000 145 C,A Circuit breaker runners, arcing tips, tap change arcing tips
26Cu-74W INF 14.97 14.70 46 98 HRB 621 90 1034 150  
 
25Cu-75W INF 15.11 14.50 33-48 90-100 HRB         A Vaccum switches, arcing tips, oil-circuit breakers
20Cu-80W INF 15.84 15.20 30-40 95-105 HRB 785 110     C
15Cu-85W PSR 16.45 16.0 20 190 HV(c)         M
          260 HV(d)          
13.4Cu-86.6W INF 16.71 16.71 33 20 HRC 621 90 1034 150 C
10.4Cu-80.6W INF 17.22 17.22 30 30 HRC 765 111 1138 165 C
Tungsten-graphite-silver
48Ag-51.75W-0.25C PSR 13.21 13.38 65 55 HRB     552 80 C Circuit breaker, arcing tips
46Ag-53W-1C PSR 13.58 12.85 55 85 HRB         C
45Ag-50W-5C PSR 11.00 10.60 37-43 45-55 HRB     621 90 A
Complex-composite contacts
88Ag-10Ni-2C PSR 9.63 9.37 70 26 HRF(c)         C,A Sliding contacts
          64 HRF(d)            
25Ag-50Fe-25Cu PSR 8.67 8.52 21 84 HRF(c)         C Circuit breakers
          94 HRF(d)            



TOLERANCES
Typical tolerances for the Solid, Bi-Metal, Tri-Metal & Button Contact
Dimension
Code
Head diameter upto 3mm
Head diameter 4mm. & above
Head diameter
HD
+ 0.1mm.
 - 0.0mm.
+ 0.1mm.
 - 0.0mm.
Head Thickness
HT
+ 0.5mm.
 - 0.0mm.
+ 0.1mm.
 - 0.0mm.
Shank diameter
SD
+ 0.0mm.
 - 0.1mm.
+ 0.0mm.
 - 0.1mm.
Shank Length
SL
+ 0.15mm.
 - 0.0mm.
+ 0.15mm.
 - 0.0mm.
Contact Material Thickness
CT
+ - 0.06mm.
+ - 0.06mm.

 

  

Low Voltage Electrical Contacts
High Tension Electrical Contacts
Semis
Brazing Alloys & Fluxes
Other Products
Material Properties
 
Go to Homepage... About Us Our Products Market Reach Quality Manpower Infrastructure Paradise Industries