Microprecision Series MP3xx Microswitch
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A miniature IP67/68 microswitch with a service range up to 170C and stainless steel levers, for a wide range of applications, including those in the most hostile industrial environments. The MP300 Series features unparalleled flexibility in terms of levers and standard telescopic plungers. Together with the option of manufacturing customized actuators, the applications are virtually unlimited.
Quick Order Parts
| Part | Sealing | Contact plating | Temperature range | Actuator | Termination / Cable |
| MP320-1M/375/50PVCU | IP67 | Silver | -20C to 105C | telescopic | 0.50m PVC, 3x0.75mm2, UL rated |
| MP320-5MAL/375/50PVCU | IP67 | Silver | -20C to 105C | roller lever, indirect action | 0.50m PVC, 3x0.75mm2, UL rated |
| MP320-1ML/375/50PVCU | IP67 | Silver | -20C to 105C | telescopic w. stainless steel roller plunger | 0.50m PVC, 3x0.75mm2, UL rated |
| MP320-3MA/375/50PVCU | IP67 | Silver | -20C to 105C | lever, indirect | 0.50m PVC, 3x0.75mm2, UL rated |
| MP310-0/375/50PVCU | IP67 | Silver | -20C to 105C | button | 0.50m PVC, 3x0.75mm2, UL rated |
| MP321-1M/375/50PVCU | IP67 | Gold, I<100mA | -20C to 105C | telescopic | 0.50m PVC, 3x0.75mm2, UL rated |
| MP321-5MAL/375/50PVCU | IP67 | Gold, I<100mA | -20C to 105C | roller lever, indirect action | 0.50m PVC, 3x0.75mm2, UL rated |
| MP321-1ML/375/50PVCU | IP67 | Gold, I<100mA | -20C to 105C | telescopic w. stainless steel roller plunger | 0.50m PVC, 3x0.75mm2, UL rated |
| MP321-3MA/375/50PVCU | IP67 | Gold, I<100mA | -20C to 105C | lever, indirect | 0.50m PVC, 3x0.75mm2, UL rated |
| MP311-0/375/50PVCU | IP67 | Gold, I<100mA | -20C to 105C | button | 0.50m PVC, 3x0.75mm2, UL rated |
Part Numbers
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Technical Specifications
| Approvals |
EN 61058-1 Upon request: UL 61058, CSA C22.2, ATEX II3d/Ex t IIIB 84C Dc |
| Housing | Glass fiber reinforced |
| Plunger | PPS |
| Membrane | Fluorsilicone elastomer, other material upon request |
| Mechanism Contacts | Change-over, Snap-action with blade in Beryllium Copper |
| Contact material | Fine Silver, Gold contact upon request |
| Termination |
Cable and Leads: Standard 0.75 mm2 / 19 AWG PVC / PVCU -20C to 105C PUR -40C to 90C SI -40C to 130C PTFE -40 to 170C Other material upon request |
| Cable outlet |
Standard side of button Other side upon request |
| Actuator | Overall dimensions in stainless steel |
| Degree of protection |
IP67 Upon request IP68 |
| Class of protection | II |
| Micro-switch | |
| Contact-gap | 0.80 mm |
| Dimensions |
DIN 41 635, form A 31 x 24 x 10.3 mm |
| Power rating | 250VAC / 6A |
| Operating range force | 1.3 to 4.0 N, depending actuator |
|
Operating temperature range (cable choice may lower temperature) |
EN 61058 -40C to +130C depending cable (+170C upon request) UL 61058 -40C to +140C (upon request) EN 60079 (ATEX) -15C to +80C (upon request) CSA - C22.2 T amb. (upon request) |
| Mechanical life | 50 x 106 |
| Standards |
EN61058 50'000 cycles UL61058 50'000 cycles CSA C22.2 6'000 cycles |
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