Key Switches
Transkript
Key Switches Specifications: Contact rating: Contact resistance: Insulation resistance: Dielectric strength: Operating temperature: Mechanical life: Contacts: Terminals: Material: Mounting: Soldering conditions: max. 20 V DC, 0,4 W < 200 mΩ > 100 MΩ at 100 V DC 250 V, 50 Hz for the duration of 1 minute – 25° to + 70° C minimum 10 000 operations gold-plated PC terminals, brass, silver-plated case: PBT, black key: brass, nickel-plated; grip: plastic on pc-board auto-soldering – max.: 3 sec, 245° C ± 10° C Models: Switching functions Key positions I II III O = Key removable SPDT X = Key not removable Step angle 90° MRK 1012 A MRK 1012 B MRK 1022 B on on on – – – on on mom O O O O X X MRK 1012 A – R MRK 1012 B – R MRK 1022 B – R on on on – – – on on mom O O O O X X Step angle 45° 7 MRK 1031 D MRK 1031 L MRK 1041 L on on on on mom on on on mom O X X O O O O X X MRK 1031 D – R MRK 1031 L – R MRK 1041 L – R on on on on mom on on on mom O X X O O O O X X 2-pole switches and further key positions on request. Switches are always supplied with 2 keys. 162 Key Switches Models: SPDT Step angle 90° MRK 1012 A MRK 1012 B MRK 1022 B Step angle 45° MRK 1031 D MRK 1031 L MRK 1041 L Step angle 90° MRK 1012 A – R MRK 1012 B – R MRK 1022 B – R Step angle 45° MRK 1031 D – R MRK 1031 L – R MRK 1041 L – R Special versions:* Key switch with security casing: Key switch with plastic case and plastic key 7 Type: MRKC Type: MRKS * Minimum quantity and delivery time on request 163
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