MPS Series Magnetic Proximity Sensors Features/Benefits Typical Applications • Long life—4M operations • Automotive sensors and indicators • Sealed contacts • Industrial sensors • Quality construction • Factory automation equipment • Quick and easy installation • Server / storage • UL 61058 approved • Security, alarms for windows Specifications Materials CONTACT RATINGS: 50V AC/DC 50/60Hz 5W (0.25A maximum) HOUSING/SPACER/COVER: ABS plastic (UL94V-0), white. RESISTIVE REED SWITCH: Rhodium coated reed contacts in hermetically CONTACT RESISTANCE: 100 m Ω max. initial. sealed, nitrogen filled glass capsule. Closed when magnet is in close proximity. Used in closed loop circuits. DIELECTRIC STRENGTH: 200 V DC min. WIRE LEADS: UL 1061/ UL1007 / UL2468 ELECTRICAL CIRCUIT: SPST NO (Contact Form A). Reed switch opens when magnet is removed from proximity. Contacts are All are 22 AWG wire: stranded, made of copper or held closed when magnet is within actuation range. aluminum; Length: 12 in. with ends stripped; Color: white. OPERATING TEMPERATURE: -40°F to 212°F (-40°C to 100°C). POTTING (around wires): Epoxy. OPERATING DISTANCE/ALIGNMENT: Operate (pull-in or make) MAGNETS: NdFeB points are nominal values with ± 10% tolerance. Release points ADHESIVE MOUNTING: Foam-backed, pressure-sensitive adhesive are 110% to 150% of the operating points. with release liner. MECHANICAL & ELECTRICAL LIFE: 4 million operations. NOTE: Specifications and materials listed above are for switches with standard options. PACKAGING: Bulk packaging, 10 switch and magnet pairs For information on specific and custom switches, consult Customer Service Center. per package. How To Order PART NUMBER SWITCH TYPE Subminiature surface mount (adhesive MPS45WGW or flange), side exit leads, 1” make gap. UL 61058 12 ± 0.25 TYP 0.100 1.10 0.750 0.750 1.10 E 0.050 0.050 0.274 0.274 0.025 OFFSET OF CENTERLINES AND DISTANCE BETWEEN 0.025 FACES OF SWITCH AND MAGNET (INCHES). 0.250 0.250 ACTUATION CHART 0.250 0.250 NOTE: UL 61058 Rating SWITCH MAGNET Third Angle Projection Dimensions are shown: inches (mm) Specifications and dimensions subject to change www.ckswitches.com E–30 Detect Detect MPS Series Magnetic Proximity Sensors Actuating Positions Gap Distance When installing recessed and surface mount contacts, magnet position Gap distance is a combination of the horizontal and vertical plane is very important. The switch and magnet must always be parallel or separation of the switch and magnet. Example: if a recessed magnet end to end, and never in a ‘T’ configuration. is 1/4” off the centerline of the switch, the make gap is reduced by 1/4” Correct Configuration Incorrect Configuration Center Alignment Off Center Alignment 1/4, 1 1/4" 1" Make Make Gap Gap E Third Angle Projection Dimensions are shown: inches (mm) Specifications and dimensions subject to change www.ckswitches.com E–31