Limit switches
Selection diagram Actuators A A S B B 3 H G L LP LS Thermoplastic Body E I E2 I E4 I Contact blocks (standard) M2 ½ NPT NO+NC snap action NO+NC slow action 2 NO+NC slow action with overlapping 3 4 7 for gates/lifts 9
limit switches C C S D D S F FR E E RA E I I RA I F E M E3 M E4 M Part no. structure E A I S Series E, thermoplastic/metal E2 2 cable entries, thermoplastic E3 3 cable entries, metal E4, thermoplastic/metal (standard) M2 2 /2 NPT Contact blocks NO+NC snap action NO+NC slow action... Options S With rubber gasket With roller Ø mm 3 With roller Ø3 mm C For gates/lifts C With roller Ø mm for gates/lifts RA With steel roller Body material I Thermoplastic M Actuator type A Steel plunger B Steel roller plunger... Note: Please verify the effective availability of a product before ordering. 9
Technical information General characteristics The position switches are ERSCE s main product, and are the result of more than 4 years of experience in industrial automation. They are suitable for use in the most different environmental conditions, thanks to their solid construction, IP66 certified, and proven reliability over decades of fieldwork. thermoplastic or metal body IP66 contact blocks with positive opening of the NC contact according to IEC EN 6947-- e VDE 66-2 form conforming to EN 47 (E series) and to EN 4 (E4 series)) heads All the heads are made of metal, to ensure maximum performance and lifetime of the switch. x36 dragging device Rotating heads Possibility to supply, on request, the limit switch lever rotated by 8 steps, and the actuator by 9 steps. lever Adjustable levers Possibility to adjust the lever every, for 36, by moving the lever and the dragging device. Cross Crociera joint Overturning levers Possibility to fasten the lever on the straight or reverse side, maintaining the positive opening of the NC contact. Unidirectional heads The lever can be activated to the left or right only or in both directions by adjusting the cross joint. 92
limit switches Technical data Insulation resistance V DC MΩ Dielectric strength /6 Hz per ' * V AC 2 Rated insulation voltage Ui IEC947-- V AC Rated thermal current Ithe IEC947-- A Rated operating current IEC947--/EN6947-- Category AC Ie 24 V A A3 2 V A 6 23 V A 6 4 V A 3 Category DC3 Ie 24 V A 6 Q3 48 V A 4 2 V A 2 V A,4 Contact resistance IEC2-7 cat.3 initial value mω 2 Short circuit protective devices IEC9 (IEC947--) gl or gg type fuse A Rated conditionals short circuit current IEC947-- A Pollution degree IEC947-- 3 Protection degree EN 629 IP66 Protection against electric shock plastic class II metal class I Vibration resistance IEC68-2-6 mm,3 ± % ( Hz ± Hz) Shock resistance IEC68-2- ms g 3 Mechanical life cycles.. Electrical life at 2 V AC 6A with resistance load cos φ= cycles. at 2 V AC 6A with inductive load cos φ=,4 cycles. Distance between contacts snap action type mm 2x,2 low action type mm 2x2 Terminals type Screw with combined notch and retravtable plate (notch Ph. size ) screw M 3, protection degree IP2 material Steel class 8,8/ Galvanized max. screw tightening torque cnm (Kg cm) 2 (2,24) max connecting capacity rigid cable mm 2 2x, flexible cable mm 2 2x, with prod terminal In accordance with EN3 Air ambient temperature operational C -3 +8 (without formation of ice) Relative humidity operational 9% max * 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 Approvals C US LISTED IEC EN 6947 E + E2 + E3 + E4 + - UL approval file E7286 - CSA approval file 76-- Approved + Conforms to requirements 93
E3 series The E3 series is designed to withstand to the most severe conditions. It has two fixing holes with distance 4mm. Each switch has three cable entries, two on each side and one on the bottom, for maximum wiring flexibility. Available with metal body and actuators. In conformity with standards: IEC EN 6947-- EN 6947- UNI EN 88 EN ISO 2- EN ISO 2-2 IEC 29 EN 629 VDE 66-2 VDE 3 4 mm fixing holes distance, compatible with E2 series body with earthing terminal 3 cable entries with sub-cap and 2 ABS caps Contact block Cover with gasket Fixing 2 fixing holes with 4 mm distance 4 3 cable entries, 2 on the sides and one the bottom of the switch with thread: 2 Thread Series part no. E3... M2 (on request) E3... /2 NPT (on request) E32... 28
limit switches A A S Steel plunger Steel plunger with rubber gasket Contact block NO+NC snap action 3 2 4 E3AM 2,2 4,F 6 mm E3AMS 2,2 4,F 6 mm NO+NC slow action 2 3 4 E3AM 2,9 2,2 4,F 6 mm E3AMS 2,9 2,2 4,F 6 mm NO+NC slow overlap. 2 7 8 2 E32AM 3,3 3,8 4,F 6 mm 2-7-8 E32AMS 3,3 3,8 4,F 6 mm 2-7-8 3 23 4 24 3 E33AM 4 6 mm E33AMS 4 6 mm 2 2 4 EAM 2,7 4,F 6 mm EAMS 2,7 4,F 6 mm 2 2 E3AM 2,3 4,F 6 mm,2 E3AMS 2,3 4,F 6 mm,2,32,32 Ø 9 Ø 9, 3, 3 6,2 89, 6,2 89, 6 3, 4 2 6 6 3, 4 2 6 V max (m/s), Min. force (N) for tripping 9 for positive opening 28 29
V E3 series B Steel roller plunger Contact block NO+NC snap action 3 2 4 E3BM 2,2 4,F 6 mm NO+NC slow action 2 3 4 E3BM 2,9 2,2 4,F 6 mm NO+NC slow overlap. 2 7 8 2 E32BM 3,3 3,8 4,F 6 mm 2-7-8 3 23 4 24 3 E33BM 4 6 mm 2 2 4 EBM 2,7 4,F 6 mm 2 2 E3BM 2,3 4,F 6 mm,2,32 Ø 3, 42 6,2 99, 6 3, 4 2 6 V max (m/s), Min. force (N) for tripping 9 for positive opening 28 V V max (m/s) 2 3, Min. force (N) for tripping 9 for positive opening 28
limit switches C C S Thermoplastic roller lever, side actuation Thermoplastic roller lever with rubber gasket, side actuation NO+NC snap action 3 4 NO+NC slow action 2 3 4 NO+NC slow overlap. Contact block 2 2 7 8 2 E3CM E3CM E32CM 3,3 7F 9 mm,6 4,4 3,2 7F 9 mm,8 7F 9 mm 2-7-8 E3CMS E3CMS E32CMS 3,3 7F 9 mm,6 4,4 3,2 7F 9 mm,8 7F 9 mm 2-7-8 3 23 4 24 3 E33CM 6 9 mm E33CMS 6 9 mm 2 2 4 ECM 4 7F 9 mm ECMS 4 7F 9 mm 2 2 E3CM 3,3 7F 9 mm,7 E3CMS 3,3 7F 9 mm,7,32,32 9 Ø 8 9 Ø 8 3, 6,2, 3, 6,2, 6 3, 4 2 6 6 3, 4 2 6 V V max (m/s) 2 3, Min. force (N) for tripping 9 for positive opening
V E3 series D D S Thermoplastic roller lever, vertical actuation Thermoplastic roller lever with rubber gasket, vertical actuation Contact block NO+NC snap action 3 2 4 E3DM 3 6F 8 mm,4 E3DMS 3 6F 8 mm,4 NO+NC slow action 2 3 4 E3DM 3,9 3 6F 8 mm E3DMS 3,9 3 6F 8 mm NO+NC slow overlap. 2 7 8 2 E32DM 4,4 6F 8 mm 2-7-8 E32DMS 4,4 6F 8 mm 2-7-8 3 23 4 24 3 E33DM,4 8 mm E33DMS,4 8 mm 2 2 4 EDM 3,6 6F 8 mm EDMS 3,6 6F 8 mm 2 2 E3DM 3 6F 8 mm,6 E3DMS 3 6F 8 mm,6,32,32 9 Ø 8 9 Ø 8 2,, 2,, 6,2 6,2 6 3, 4 2 6 6 3, 4 2 6 C V max (m/s) 2 3, Min. force (N) for tripping 9 for positive opening 2
limit switches E E RA Thermoplastic roller lever Steel roller lever NO+NC snap action 3 4 NO+NC slow action NO+NC slow overlap. Contact block 2 2 2 3 4 7 8 2 E3EM E3EM E32EM 2-7-8 F 2 32 46F 38 4 E3EMRA E3EMRA E32EMRA 2-7-8 F 2 32 46F 38 4 3 23 4 24 3 E33EM 4 E33EMRA 4 2 2 4 EEM 4F EEMRA 4F 2 2 E3EM 2 4F E3EMRA 2 4F,3,3 6 42, 33 Ø 6 42, 33 Ø 2, 2 39, 6,, 39, 6, 6,2 6,2 6 3, 4 2 6 6 3, 4 2 6 V V max (m/s) 3, 4 6,7 6-9,2 Min. force (cnm) for tripping for positive opening 3 3
E3 series E I Ø mm rubber roller lever Thermoplastic roller lever Contact block NO+NC snap action 3 2 4 E3EM F E3IM F NO+NC slow action 2 3 4 E3EM 2 32 46F E3IM 2 32 46F NO+NC slow overlap. 2 7 8 2 E32EM 2-7-8 38 4 E32IM 2-7-8 38 4 3 23 4 24 3 E33EM 4 E33IM 4 2 2 4 EEM 4F EIM 4F 2 2 E3EM 2 4F E3IM 2 4F,36,3 47 Ø 6,2 23,2 Ø 9, 6,, 7, 3,, 6,2 6,2 6 3, 4 2 6 6 3, 4 2 6 V V max (m/s) 3, 4 6,7 6-9,2 Min. force (cnm) for tripping for positive opening 3 4
limit switches I RA I Steel roller lever Ø mm rubber roller lever Contact block NO+NC snap action 3 2 4 E3IMRA F E3IM F NO+NC slow action 2 3 4 E3IMRA 2 32 46F E3IM 2 32 46F NO+NC slow overlap. 2 7 8 2 E32IMRA 2-7-8 38 4 E32IM 2-7-8 38 4 3 23 4 24 3 E33IMRA 4 E33IM 4 2 2 4 EIMRA 4F EIM 4F 2 2 E3IMRA 2 4F E3IM 2 4F,3,36 3, Ø 6,2 23,2 Ø 9 3, 7,, 6,2 6,2, 6,, 6 3, 4 2 6 6 3, 4 2 6 V V max (m/s) 3, 4 6,7 6-9,2 Min. force (cnm) for tripping for positive opening 3
E3 series F F Thermoplastic roller variable length lever Ø mm rubber roller variable length lever NO+NC snap action 3 4 NO+NC slow action 2 3 4 NO+NC slow overlap. Contact block 2 2 7 8 2 E3FM E3FM E32FM 2-7-8 F 2 32 46F 38 4 E3FM E3FM E32FM 2-7-8 F 2 32 46F 38 4 3 23 4 24 3 E33FM 4 E33FM 4 2 2 4 EFM 4F EFM 4F 2 2 E3FM 2 4F E3FM 2 4F,37,38 6 47, 3 Ø 48,2 Ø,-66,, 4,-8, 47-87 69-9 6-83...23, 6,2 6,2 6 3, 4 2 6 6 3, 4 2 6 V V max (m/s) 3, 4 6,7 6-9,2 Min. force (cnm) for tripping for positive opening 3 6
limit switches FR G Ø mm rubber roller adjustable lever Side rotary adjustable Ø6 mm glass fiber rod NO+NC snap action 3 4 NO+NC slow action 2 3 4 NO+NC slow overlap. Contact block 2 2 7 8 2 E3FRM E3FRM E32FRM 2-7-8 F 2 32 46F 38 4 E3GM E3GM E32GM 2-7-8 F 2 32 46F 38 4 3 23 4 24 3 E33FRM 4 E33GM 4 2 2 4 EFRM 4F EGM 4F 2 2 E3FRM 2 4F E3GM 2 4F,39,38 6 72 ø 42,2 Ø 6x2 9, 4,-8,, 6-83-23 3,...3,, max 88 max 2 6,2 6,2 N 3 6 36 4 2 6 6 3, 4 2 6 V V max (m/s) 3, 4 6,7 6-9,2 Min. force (cnm) for tripping for positive opening 3 7
E3 series H L Side rotary adjustable Ø6 mm aluminium rod Flexible rod NO+NC snap action 3 4 NO+NC slow action Contact block 2 2 2 3 4 NO+NC slow overlap. 7 8 2 E3HM E3HM E32HM 2-7-8 F 2 32 46F 38 4 E3LM E3LM E32LM 6 4 3 2-7-8 3 23 4 24 3 E33HM 4 E33LM 3 2 2 4 EHM 4F ELM 8 2 2 E3HM 2 4F E3LM,38,3 Ø 7 42,2 Ø 6x2 9, 3,...3,, max 88 max 2 2,, 43 6,2 6,2 6 3, 4 2 6 6 3, 4 2 6 8
limit switches LP LS Flexible rod with plastic terminal Cat s whisker NO+NC snap action 3 4 NO+NC slow action Contact block 2 2 2 3 4 NO+NC slow overlap. 7 8 2 E3LPM E3LPM E32LPM 6 4 3 2-7-8 E3LSM E3LSM E32LSM 6 4 3 2-7-8 3 23 4 24 3 E33LPM 3 E33LSM 3 2 2 4 ELPM 8 ELSM 8 2 2 E3LPM E3LSM,3,3 Ø 6 Ø,2 98 39,, 2 46,, 6,2 6,2 6 3, 4 2 6 6 3, 4 2 6 9