SF4D-DC12V

SF4D POLARIZED, MONOSTABLE SAFETY RELAY WITH FORCIBLY GUIDED CONTACTS SF4D RELAY Features • Relay complies with EN 50205, Type B 53.3 • Overvoltage category as per IEC 60664-1 III / 4kV 33 16.5 • Rated voltage as per IEC 60664-1 basic insulation Polution degree 2 2 3 inside outside inside 400V 400V 250V forcibly linked pair only 250V 250V 250V all other contacts 400V 400V 400V Coil-contact length: 3.0 Contact-contact Tolerance± 0.3mm Weight approx. 47g SPECIFICATIONS Contact Characteristics Contact configuration (a = normally open / NO, b = normally closed / NC) Contact material 4a4b AgSnO2, with Au flash Contact resistance (initial at 6V DC, 1A) Making and breaking capacities (breathing hole open)*1 Max. switching voltage Min. switching voltage / min. switching current Pick-up / drop-out / bounce time (approx. values at Unominal) Mechanical life ≤30mΩ 6A 250V / 3A 24V 400V 10V / 10mA 18.5 / 7.5 / 3ms 107ops Max. switching frequency (without load) Permissible ambient temperature at nominal power consumption Upper temperature limit Test voltage: open contact / contact-contact / contact-coil 10Hz -40°C to +70°C 105°C 2500 / 2500 / 2500Vrms Insulation resistance at 500V DC (initial) 109Ω Shock resistance (11ms) NO/NC*2 30G Vibration resistance 10 – 200 Hz (10 – 55 Hz, amplitude 2 mm)*2 10G Degree of protection IP67 / IP30*3 Unit weight Coil 47g Important: Relay characteristics may be influenced by: Operate / release voltage (% of Unominal at 20°C) Pick-up/nominal power consumption at 20°C 75% / 15% 280 / 500mW • strong external magnetic fields • magnetic conductive materials near the relay • narrow top-to-top mounting (printed surface to printed surface) Remarks Note: *1 According to EN 60947-5-1: 1997, table 4 AC15 / DC13 *2 Contact interruption