IA series Low profile pushbutton switches for harsh environments Distinctive features - Specifications - Overview ❑ Resistant to frost, sand and hydrocarbons ❑ Tactile feedback ❑ Front panel sealed to IP 67 B ELECTRICAL AND GENERAL SPECIFICATIONS MATERIALS • Max. current/voltage rating with resistive load : 2A 24VDC • Initial contact resistance : 100mΩ max. • Insulation resistance : 100 MΩ min. at 500VDC • Dielectric strength : 500 VAC rms • Electrical life at full load : 1 000.000 cycles • Torque : 0,5 to 1Nm applied to nut • Panel thickness : 7 mm (.276) max. • Total travel : 1,5 mm +/- 0,3 (.059 +/ .012) • Operating force : 6,5 N ±2N • Case/bushing : thermoplastic • Actuator : polyurethane • Contacts : silver • Terminal seal : epoxy PANEL MOUNTING ➞ Gasket ENVIRONMENTAL SPECIFICATIONS • Front panel sealing (see drawings opposite) : - With gasket above the panel : IP67 - With gasket under the panel : IP64 • Operating temperature : -20°C to +65°C Sealing to IP64 Sealing to IP67 IA Shape SERIES R round Electrical function Terminals F Wire leads Contacts 1 Silver 3 Normally open (NO) 5 NC/NO combined Plunger colours 1 2 3 5 6 7/1 9 Blue Black Green Yellow Red White Orange Case colour 00 Black Dimensions : First dimensions are in mm while inches are shown as bracketed numbers. A sealing boot is available to protect the switches against frost and sand. See section H. Mounting accessories : Standard hardware supplied : 1 hex nut 19 mm (.748) across flats and 1 gasket. Knurled nut U3327 available on request. This nut is presented in Section I. Packaging unit : 25 pieces B-38 www.apem.com APEM IA series Low profile pushbutton switches for harsh environments Bushing Ø 16 (.629) • Panel cut-out Ø 16,2 mm (.657) • Min. pitch for matrix mounting : - with standard hex nut : 27 x 27 mm (1.062 x 1.062) - with knurled nut U3327: 20 x 20 mm (.787x.787) C NO NC NO NC/NO combined MODEL STRUCTURE B Models 1.20 (.047) Ø16.00x1.00SI (.629DIAx1.00IS) 3.30 (.129) NO model has 2 terminals only. Ø15.00 (.590 DIA) 15.50 (.610) NC/NO combined 16.00 (.629) EPOXY 1.50 Maxi (.059 MAX) C IAR5F NC NO 500.00±10 (19.685±.4) IAR3F 10.00 (.393) Normally open (NO) Ø19.80 (.779 DIA) Wire colours (NC/NO) : black = common, brown = NC, blue = NO CONTACT MATERIAL 1 Silver PLUNGER COLOUR 1 : blue - 2 : black - 3 : green - 5 : yellow - 6 : red - 7/1 : white - 9 : orange CASE COLOUR 00 : black APEM www.apem.com B-39