SF3 Polarized monostable safety relay with forcibly SF3 RELAY guided contacts FEATURES Relay complies with EN 50205, Type A 53.3 25.0 Overvoltage category as per IEC 60664-1 III / 4kV 16.5 Rated voltage as per IEC 60664-1 basic insulation Polution degree length: 3.5 2 2 3 inside outside outside Tolerance 0.3mm Coil-contact 400V 400V 250V Weight approx. 47g Contact-contact 400V 400V 400V Relay complies with IEC/EN 60335-1 (GWT) For applications according to EN 50155* * For details, please contact your local Panasonic Electric Works representative. SPECIFICATIONS Contact Characteristics Contact configuration (a = normally open / NO, Max. switching frequency (without load) 10Hz 3a1b b = normally closed / NC) Permissible ambient temperature at nominal -40C to +70C Contact material AgSnO , with Au flash power consumption 2 Upper temperature limit 105C Contact resistance (initial at 6V DC, 1A) 30m Making and breaking capacities (breathing Test voltage: 2500 / 2500 / 6A 250V / 3A 24V *1, *3 hole open) open contact / contact-contact / contact-coil 2500V rms Max. switching voltage 400V 9 Insulation resistance at 500V DC (initial) 10 Min. switching voltage / min. switching current 10V / 10mA *2 Shock resistance (11ms) NO/NC 30G Pick-up / drop-out / bounce time Vibration resistance 10 200 Hz (10 55 Hz, 16.5 / 7 / 3ms (approx. values at U ) *2 10G nominal amplitude 2 mm) 7 Mechanical life 10 ops Solder bath temperature, maximum duration 260C, 5s *3 Degree of protection IP67 / IP30 Unit weight Coil 37g Operate / release voltage (% of U at nominal 75% / 10% Important: Relay characteristics may be influenced by: 20C) strong external magnetic fields Pick-up/nominal power consumption at 20C 280 / 500mW magnetic conductive materials near the relay narrow top-to-top mounting (printed surface to printed surface) Remarks: *1 According to EN 60947-5-1: 1997, table 4 AC15 / DC13 Note: *2 Contact interruption <10 s Suitable for most common washing methods except ultrasonic cleaning. *3 Breathing hole open ORDERING INFORMATION Ex. SF3 DC12 V Coil voltage (DC) 5, 9, 12, 18, 21 24, 36, 48, 60 Note: Standard packing Carton: 20 pcs. Case 200 pcs. ds 61405 en sf3: 180413D 1SF3 COIL DATA Coil nominal voltage Operate voltage Release voltage Coil resistance Coil inductance Part number V DC V DC V DC ( 10%, 20C) (mH) 3.75 50 47 SF3-5V 5 0.5 6.75 162 145 SF3-9V 9 0.9 9.00 288 252 SF3-12V 12 1.2 13.50 648 551 SF3-18V 18 1.8 15.75 882 742 SF3-21V 21 2.1 18.00 1152 959 SF3-24V 24 2.4 27.00 2592 2097 SF3-36V 36 3.6 36.00 4608 3654 SF3-48V 48 4.8 45.00 7200 5612 SF3-60V 60 6.0 ELECTRICAL LIFE Voltage Current Load type Frequency Duty cycle No. of contacts No. of ops. *2,*6 *4,*5 250V AC 8A cos = 1 0.33Hz 50% 2 30,000 *2 *4,*5 250V AC 6A cos = 1 0.33Hz 50% 100,000 4 *4,*5 *2 250V AC 2A cos = 1 0.33Hz 50% 500,000 4 *4,*5 *1 *3 220V AC 30 / 3A 0.10Hz 10% 200,000 AC 15 1 *4,*5 *3 220V AC 5.10A 0.20Hz 10% 100,000 cos = 0.60 1 *4,*5 *3 220V AC 4.43A cos = 0.35 0.20Hz 50% 1 100,000 *3 *4,*5 220V AC 1.45A 0.20Hz 50% cos = 0.35 1 300,000 *2 *4,*5 24V DC 6A resistive 0.33Hz 50% 4 400,000 *2 *4,*5 24V DC 2A resistive 0.50Hz 50% 4 2,000,000 *1 *3 *4,*5 24V DC 3A 0.33Hz 10% 50,000 DC 13 1 *4,*5 *3 24V DC 3A L/R = 40ms 0.33Hz 10% 100,000 1 *1 EN 60947-5-1: 1997 table C.1 *2 Breathing hole closed *3 Breathing hole open *4 Ambient temperature +70C *5 Dielectric strength according to EN61810-1:2004. *6 Normally open contacts REFERENCE DATA Load limit curve Coil voltage characteristics 1.7 Permissible coil 1.6 voltage without contact load 1.5 (nominal coil resistance) 1.4 1.3 Permissible coil voltage with contact load of 2 x 10A and close mounting of 5 relays 1.2 (nominal coil resistance) 1.1 1.0 0.9 0.8 Average value of pick-up voltage without previous coil heating 0.7 0.6 0.5 Minor increase due to 0.4 temperature compensation 0.3 0.2 Average value of drop-out voltage 0.1 without previous coil heating -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 Ambient temperature C Loads in the range under the curve can be switched safely. Permissable coil voltages and pick-up and drop-out The arc will extinguish before the opposite contact makes. characteristics at various ambient temperatures. 2 ds 61405 en sf3: 180413D U / U coil coil rated