| Order code | 78-1702 | 78-1688 | 78-1700 | 78-1708 | | | Bulgin type | MP0027 | MP0038 | MP0025 | MP0037 | | | Terminations | solder tags | solder tags | solder tags | screw terminals | | | Switching | SPCO(momentary) | SPCO(momentary) | SPCO(momentary) | SPNO push to make | | | (microswitch) | (microswitch) | (microswitch) | (momentary action) | | | Sealing | | IP66 EN60529 1992 | IP68 EN60529 1992 | | | | (front of panel only) | | (not microswitch) | | (not terminals) | | | Max rating | 5A, 250V AC | 5A, 250V AC | 5A, 250V AC | 1A, 50V | | | Contact resistance | <10mΩ | <10mΩ | <10mΩ | <10mΩ | | | Insulation resistance | >103MΩ | >103MΩ | >103MΩ | >105MΩ | | | Dielectric strength | >2.0kV AC | >2.0kV AC | >2.0kV AC | >1.0kV AC | | | Temperature range | –20°C to +70°C | –20°C to +70°C | –20°C to +70°C | –20°C to +70°C | | | Operations (mech) | 1,000,000 min | 1,000,000 min | 1,000,000 min | 1,000,000 min | | | Operations (elec) | 35,000 min | 35,000 min | 35,000 min | 30,000 min | | | Operating pressure | 7.5N typ | 12.5N typ | 6.1N typ | 7.5N typ | | | Contacts | fine silver | fine silver | fine silver | silver plated brass, | | | Mouldings | glass filled nylon | glass filled nylon | glass filled nylon | glass filled nylon | | | Tags/Terminations | tin plated brass | tin plated brass | tin plated brass | silver plated brass | | | Body and button | stainless steel | stainless steel | stainless steel | stainless steel | | | Switch profile | flat | flat | flat | flat | | | Button diameter | 28mm | 28mm | 22mm | 21.5mm | | | | | | | | | Order code | 78-1704 | 78-1687 | 78-1685 | 78-1703 | | | Bulgin type | MP0031 | MP0037/3 | MP0031/3 | MP0027/3 | | | Terminations | solder tags | screw terminals | solder tags | solder tags | | | Switching | SPCO(momentary) | SP push to make | SPCO(momentary) | SPCO(momentary) | | | (microswitch) | (momentary action) | (microswitch) | (microswitch) | | | Sealing | IP66 EN60529 1992 | IP68 EN60529 1992 | IP66 EN60529 1992 | | | | (front of panel only) | (not microswitch) | (not terminals) | (not microswitch) | | | | Max rating | 5A, 250V AC | 1A, 50V | 5A, 250V AC | 5A, 250V AC | | | Contact resistance | <10mΩ | <10mΩ | <10mΩ | <10mΩ | | | Insulation resistance | >103MΩ | >105MΩ | >103MΩ | >103MΩ | | | Dielectric strength | >2.0kV AC | >1.0kV AC | >2.0kV AC | >2.0kV AC | | | Temperature range | –20°C to +70°C | –20°C to +70°C | –20°C to +70°C | –20°C to +70°C | | | Operations (mech) | 1,000,000 min | 1,000,000 min | 1,000,000 min | 1,000,000 min. | | | Operations (elec) | 35,000 min | 30,000 min | 35,000 min | 35,000 min. | | | Operating pressure | 7.5N typ | 7.5N typ | 4.7N typ | 7.5N typ. | | | Contacts | fine silver | fine silver | fine silver | fine silver | | | Mouldings | glass filled nylon | glass filled nylon | glass filled nylon | glass filled nylon | | | Tags/Terminations | tin plated brass | silver plated brass | tin plated brass | tin plated brass | | | Body and button | stainless steel | stainless steel | stainless steel | stainless steel | | | Switch profile | flat | domed | domed | domed | | | Button diameter | 21.5mm | 21.5mm | 21.5mm | 28mm | | | | | | | | | Order code | 78-1686 | 78-1684 | 78-1706 | 78-1683 | | | Bulgin type | MP0037/2 | MP0031/2 | MP0033 | MP0013 | | | Terminations | screw terminals | solder tags | screw terminals | screw terminals | | | Switching | SPNO push to make | SPCO (momentary) | SPNO push to make | SPNO push to make | | | (momentary action) | (microswitch) | (slow momentary | (slow momentary | | | | | action) | action) | | | Sealing | IP68 EN60529 1992 | IP66 EN60529 1992 | Internally sealed | | | | (front of panel only) | (not terminals) | (not microswitch) | against ingress | | | | | | of water and dust | | | | Max rating | 1A, 50V | 5A, 250V AC | 1A, 50V | 1A, 50V | | | Contact resistance | <10mΩ | <10mΩ | <15mΩ | <15mΩ | | | Insulation resistance | >105MΩ | >105MΩ | >104MΩ | >104MΩ | | | Dielectric strength | >1.0kV AC | >1.0kV AC | >2.5kV AC | >2.5kV AC | | | Temperature range | –20°C to +70°C | –20°C to +70°C | –20°C to +85°C | –20°C to +85°C | | | Operations (mech) | 1,000,000 min | 1,000,000 min | | | | | Operations (elec) | 30,000 min | 30,000 min | | | | | Operating pressure | 7.5N typ | 7.5N typ | | | | | Contacts | silver plated brass, | silver plated brass | silver plated copper | silver plated copper | | | Mouldings | glass filled nylon | glass filled nylon | glass filled nylon | glass filled nylon | | | Tags/Terminations | silver plated brass | silver plated brass | silver plated brass | silver plated brass | | | Body and button | stainless steel | stainless steel | chrome plated brass, | chrome plated brass, | | | | | stainless steel | stainless steel | | | Switch profile | prominent | prominent | prominent | prominent | | |
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