2,808
edits
Changes
→6.2 Contact Materials and Design of Contact Components
|GP relais (Elementary relays)
|Low arc erosion, high weld resistance, low and consistent contact resistance
|Ag/Ni, Ag/SnO2SnO<sub>2</sub>, (Ag/CdO), Ag/ZnO,AgNi0.15, (Ag)
|Solid and composite contact rivets, welded miniature profile (tape) segments
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|Automotive relays
|Low material transfer, low contact resistance, high weld resistance
|AgNi0.15, Ag/SnO2SnO<sub>2</sub>, Ag/Ni
|Contact rivets, welded miniature profile (tape) segments
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|Flasher relays (automotive, > 3 Mio operations)
|Low material transfer, high arc erosion resistance, low contact resistance
|PdCu15 and 40 (Anode) vs. AgNi0.15, AgCu3 (Cathode), Ag/ZnO, Ag/SnO2SnO<sub>2</sub>
|Contact rivets, welded miniature profile (tape) and strip segments
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|Automotive horn contacts
|High arc erosion resistance at extremely high number of switching operations
|W, Ag/SnO2SnO<sub>2</sub>
|Contact rivets, W weld buttons, springs or formed parts with brazed or welded tips
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|Appliance switches
|Low contact resistance, reasonable arc erosion and weld resistance
|AgNi0.15, Ag/Ni, Ag/SnO2SnO<sub>2</sub>, (Ag/CdO)
|Contact rivets, welded contact parts
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|Temperature controllers (Thermostats)
|Defined contacting point even at slow motion make, high operating temperatures
|AgNi0.15, Ag/Ni, Ag/SnO2SnO<sub>2</sub>, (Ag/CdO)
|Contact rivets, welded contact parts, weld buttons
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|Automatic staircase lighting switches
|High arc erosion and weld resistance
|Ag/Ni, Ag/SnO2SnO<sub>2</sub>, (Ag/CdO), Ag/C against Ag/SnO2SnO<sub>2</sub>
|Rivets, welded contact parts
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|Micro snap switches
|Low contact resistance, no sticking during make operation
|AgNi 0,15, Ag/Ni, Ag/SnO2SnO<sub>2</sub>, (Ag/CdO)
|Rivets, clad or welded contact parts
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|Cam switches (higher loads)
|High arc erosion and weld resistance, low contact resistance
|AgCu, Ag/Ni, Ag/SnO2SnO<sub>2</sub>, Ag/ZnO, (Ag/CdO)
|Rivets, welded contact parts
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|Contactors
|High arc erosion and weld resistance, low contact resistance
|I< 20A : Ag/Ni, Ag/SnO2 SnO<sub>2</sub> I>20A : Ag/Sn O2SnO<sub>2</sub>, (AgCdO)
|Welded and brazed contact tips
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|Power switches and circuit breakers
|Extremely high arc erosion and weld resistance, low contact resistance
|Ag/ZnO, Ag/SnO2 SnO<sub>2</sub> , Ag/C against Ag/Ni o. Ag/W, Ag/W, Ag/WC/C, Ag/W against Ag/CdO
|Brazed and welded contact tips and formed parts
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|Disconnect switches in high voltage circuits
|Low contact resistance, low mechanical wear, sufficient arc erosion resistance during current commutation
|Ag (electroplated), AgNi0,15, Ag/SnO2SnO<sub>2</sub>
|Electroplated coatings, brazed parts, Toplay profile segments
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