Pneumatic & Fluid Control Catalog - z7424CT

SWITCHES AND SENSORS 3 .79 (20) 1.18 (30) .59 (15) .21 (5.3) .61 (15.5) 2.83 (72) 1.18 (30) 2.95 (75) 1 /4 NPT or G 1 /4 Switch Adjustment * G1/4 or 1/4 NPT .79 (20) 1.18 (30) .59 (15) .21 (5.3) .37 (9.5) 2.83 (72) 1.18 (30) 2.95 (75) 1 /4 NPT or G 1 /4 Switch Adjustment *G1/4 or 1/4 NPT* SAS-03 For further information www.norgren.com .79 (20) 1.18 (30) .59 (15) .21 (5.3) 2.83 (72) 1.18 (30) 2.95 (75) Switch Adjustment .315 (8) dia recess at pressure inlet for O-ring. (O-ring supplied with switch) 1 2 3 1.18 (30) 1.18 (30) .28 (7) .06 (1.5) Protective Cover An optional elastomer cover for protection of the switch adjustment against dirt and splashing liquids Part No. 0554737000000000 Dimensions in inches (mm) Switching capacity Commutator with gold plated contacts Current type Load type *2) U min [V] Max. permanent current Imax [A] at U *1) (UL & CSA) M 12x1 DIN EN 175301-803, form A 30 V 30 V 48 V 125 V 250 V Contact life AC ohmic, inductive 6 0.1 0.1 0.1 0.1 0.1 ≥ 2 x 10 5 switching cycles DC ohmic, inductive 6 0.1 — — — — Recommended circuit Spark quenching and EMV intrinsically safe 1. Quick diode (D) with tv ≤ 200 ns, parallel to inductive load. 2. RC link in parallel to load in parallel to switching contact. Dimensioning principles: R L in Ω ≈ 0.2 x RLoad in Ω C in [µF] ≈ ILoad in [A] + - p D 1) 2) R C RL U DC (AC) d.c (a.c.) ~ ~ 2 3 1 p 2 4 1 p Switching function Plug DIN EN 175301-803, form A Microswitch SPDT Terminals 1 - 3: Contacts close on rising pressure. Terminals 1 - 2: Contacts open on rising pressure. Switching function IEC 947-5-2, M12 x 1: Microswitch SPDT Terminals 1 - 4: Contacts close on rising pressure. Terminals 1 - 2: Contacts open on rising pressure. R L = Load resistance Reference number: 20/min, Reference temperature: +20°C. I min = 1 mA at 24 VDC or 5 mA at 6 VDC *1) Higher currents (5 A max) will cause a reduction of the durability of the micro-switch contacts. Futhermore additional measuements has to be taken to fulfil the EMV regulation 2004/108/EG by the manufacturer *2) Spark quenching/overload protection will be necessary using inductive loads. Herion 18D Pneumatic pressure switches (diaphragm type) Vac - 435 psi

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