Miniaturized limit switches
Selection diagram Actuators 04 0 06 Thermoplastic Bodies M3 Contact blocks NONC 1NO+1NC snap action Cable entry With screw 290 GENERAL CATALOGUE
miniaturized limit switches 08 09 11 13 14 Part no. structure M3 04 NONC Series M3 Screw terminals Contact blocks NONC 1NO+1NC snap action Actuators 04 Steel plunger 0 Steel roller plunger... Note: Please verify the effective availability of a product before ordering. GENERAL CATALOGUE 291
Technical information General characteristics The M3 series miniaturized limit switches are among the most compact on the market. Contact blocks are 1NO+1NC snap action, with positive opening of the NC contact. The switches are made of PA6 double insulated thermoplastic reinforced with fiberglass, class V2. The M3 series is equipped with M3, screw terminals. thermoplastic body metal actuators contacts type Zb gold plated contacts (on request) contact blocks with positive opening of the NC contact according to IEC EN 60947--1 e VD 0660-2000 Galvanically separated contacts type Zb The NO and NC contacts are galvanically separated with positive opening: it is possibile to use the contacts independently. High performance contacs Ag/Ni. 292 GENERAL CATALOGUE
miniaturized limit switches Technical information Operating speed mm/s Operating frequency operat./sec (Hz) Insulation resistance 00 V DC MΩ Dielectric strength 0/60 Hz per 1' * V AC Rated insulation voltage Ui IEC947--1 V AC Rated thermal current Ithe IEC947--1 A Rated operating current IEC947--1/EN60947--1 Category AC1 Ie 24 V A B300 12 V A 230 V A Category DC13 Ie 24 V A Q300 120 V A 230 V A Contact resistance IEC2-7 cat.3 initial value mω Short circuit protective devices IEC269 (IEC947--1) gl or gg type fuse A Pollution degree IEC947--1 Actuator protection degree EN 6029 Vibration resistance IEC68-2-6 mm Shock resistance IEC68-2-27 11 ms g Mechanical life cycles Electrical life a 20 V AC 1,A with resistance load cos =1 cycles a 20 V AC 1,A with inductive load cos =0,4 cycles Terminals Type Terminals protection degree EN6029 Material Max. screw tightening torque cnm (Kg cm) Max connecting capacity rigid cable mm 2 flexible cable mm 2 Max. screw tightening torque mm 2 Max connecting capacity Air ambient temperature operational C Relative humidity operational * between terminals of the same polarity: between terminals with different polarity: between live mechanical parts and ground; between live mechanical parts and non-current-carrying metal parts 1 1000 0, 100 200 20 10 3 1, 2 0,6 0,2 2 max 3 3 IP40 0,3 ± 1% (10 Hz ± 1 Hz) 30 1.000.000 00.000 00.000 Screw with combined notch and retractable plate (notch Ph. Size 1) IP00 IP40 with terminal covers Steel class 8,8/ Galvanized 120 (12,24) 2x1, 2x1, 1x1, In accordance with EN0013-2 +8 without formation of ice) 9% max Approvals C US IEC EN 60947 M3 + - UL approval file E72861 - CSA approval file 026716-0-000 Approved + Conforms to requirements GENERAL CATALOGUE 293
V V M3 series Steel plunger Ø8,3 mm Steel roller plunger Contact block 1NO+1NC snap action ER200380 M304NONC ER200390 M30NONC Weight pack kg 0,92 1,10 Pack pcs standard article article on request M M Drive cam operating parameters Min. force (N) for tripping 4 for positive opening 16 04 0 294 GENERAL CATALOGUE
V miniaturized limit switches Steel roller plunger turned 90 Contact block 1NO+1NC snap action ER200400 M306NONC Weight pack Pack standard article kg pcs article on request 1,10 M Drive cam operating parameters Min. force (N) for tripping 4 for positive opening 16 GENERAL CATALOGUE 29
M3 series Lever length 4 mm Lever length 63, mm Contact block 1NO+1NC snap action ER200420 M308NONC ER200430 M309NONC Weight pack kg 0,360 0,36 Pack pcs standard article article on request Drive cam operating parameters Min. force (cnm) for tripping 1,6 for positive opening 12 296 GENERAL CATALOGUE
miniaturized limit switches Thermoplastic roller lever length 26,6 mm Thermoplastic roller lever length 37 mm Contact block 1NO+1NC snap action ER20040 M311NONC ER200470 M313NONC Weight pack kg 0,73 0,74 Pack pcs standard article article on request Drive cam operating parameters Min. force (cnm) for tripping 2 for positive opening 13 Min. force (cnm) for tripping 1,6 for positive opening 12 GENERAL CATALOGUE 297
Thermoplastic roller lever length 0, mm Accessory: terminal cover for M3 series Contact block 1NO+1NC snap action ER200480 M314NONC ER200690 M3PROTA Weight pack kg 0,7 0,19 Pack pcs standard article article on request 12,6 9 M3 series SW 16 Pg 9 17,4 71 Drive cam operating parameters Min. force (cnm) for tripping 1,3 for positive opening 11 298 GENERAL CATALOGUE