78 Series - Switch mode power supplies Features 78.12....2400 78.12....1200 78.36 Range of modular DC power supplies High efficiency (up to 91%) Low (< 0.4 W) stand-by power absorption Thermal protection: internal, with Vout shutdown Short circuit protection: hiccup (auto-recovery) mode Input protection: replaceable internal fuse plus spare (78.36) Overvoltage protection: varistor 24 V DC, 12 W output 12 V DC, 12 W output 24 V DC, 36 W output Flyback topology Compliant to EN 60950-1 and EN 61204-3 Parallel working for automatic redundancy: with OR-IN diode Dual and series connection permissible Small dimensions: 17.5 mm (1 module) or 70 mm (4-modules) wide, 60 mm deep 35 mm rail (EN 60715) mount Screw terminal * (see diagrams L78) ** peak to peak, 100 Hz component, with 100 V AC input *** 88...100 V AC with output current limited to 80 % IN For outline drawing see page 8 **** (see derating diagrams P78) Output specification Output current (20...+40C, 230 V AC input) A 0.63 1.25 1.7 Rated current I (50C, full input operating range)A 0.50 1 1.5 N Rated voltage V 24 12 24 Rated power W 12 12 36 Output power (20...+40C, 230 V AC input) W 15 15 40 Peak current capability for 3 ms * A 23 8 Output voltage adjust V Voltage variation (from no-load to full-load) < 1 % < 1 % < 1 % Voltage ripple full load ** mV < 200 < 200 < 200 Hold-up time full load: with 100 V AC input ms < 10 < 10 < 20 with 260 V AC input ms < 90 < 90 < 100 Input specification Nominal voltage (U ) V AC (50/60 Hz) 110...240 110...240 110...240 N V DC (not polarized) 220 220 220 Operating range V AC (50/60 Hz) 100...265*** 100...265*** 100...265*** V DC 140...370 140...370 140...370 Max power absorption VA 28.2 32 57.5 ( 100 V AC, 50 Hz) W 14.2 17.2 43 Stand-by power absorption W < 0.4 < 0.4 < 0.4 Power factor 0.50 0.53 0.74 Max current absorption ( 88 V AC) A 0.25 0.30 0.6 Max. inrush current (peak 265 V) for 3 ms A 10 10 12 Replaceable protection fuse 1 A - T Technical data Efficiency ( 230 V AC) % 85 87 86 MTTF H > 400.000 > 400.000 > 600.000 Start-up delay s < 1 < 1 < 1 Dielectric strength between input/output V AC 2,500 (class II) 2,500 (class II) 3,000 (class II) Dielectric strength between input/PE V AC Ambient temperature range **** C 20...+60 20...+60 20...+70 Protection category IP 20 IP 20 IP 20 Approvals (according to type) 1 XII-2012, www.findernet.com78 Series - Switch mode power supplies Features 78.60 78.50 Range of modular DC power supplies High efficiency (up to 91%) Low (< 0.4 W) stand-by power absorption Thermal protection: internal, with Vout shutdown Short circuit protection: hiccup (auto-recovery) mode Overload protection: fold-back mode (78.50 only) Input protection: replaceable internal fuse plus spare Overvoltage protection: varistor Flyback topology 24 V DC, 60 W output 12 V DC, 50 W output ZVS (Zero-voltage-switching), quasi-resonant Voltage regulation 24-28V Voltage regulation 12-15V mode technology ZVS technology ZVS technology Compliant to EN 60950-1 and EN 61204-3 Suitable for battery charging Parallel working for automatic redundancy: with OR-IN diode Dual and series connection permissible Small dimensions: 70 mm (4-modules) wide, 60 mm deep 35 mm rail (EN 60715) mount Screw terminal * (see diagrams L78) ** peak to peak, 100 Hz component, with 100 V AC input For outline drawing see page 8 *** (see derating diagrams P78) Output specification Output current (20...+40C, 230 V AC input) A 2.8 4.6 Rated current I (50C, full input operating range)A 2.5 4.2 N Rated voltage V 24 12 Rated power W 60 50 Output power (20...+40C, 230 V AC input) W 68 55 Peak current capability for 3 ms * A 10 12 Output voltage adjust V 24...28 12...15 Voltage variation (from no-load to full-load) < 1 % < 1 % Voltage ripple full load ** mV < 200 < 200 Hold-up time full load: with 100 V AC input ms < 20 < 30 with 260 V AC input ms < 130 < 150 Input specification Nominal voltage (U ) V AC (50/60 Hz) 110...240 110...240 N V DC (not polarized) 220 220 Operating range V AC (50/60 Hz) 88...265 88...265 V DC 140...370 140...370 Max power absorption VA 90 89 ( 100 V AC, 50 Hz) W 67.5 58.3 Stand-by power absorption W < 0.4 < 0.4 Power factor 0.75 0.65 Max current absorption ( 88 V AC) A 0.9 0.85 Max. inrush current (peak 265 V) for 3 ms A 30 30 Replaceable protection fuse 1.6 A - T 1.6 A - T Technical data Efficiency ( 230 V AC) % 91 90 MTTF H > 500.000 > 400.000 Start-up delay s < 1 < 1 Dielectric strength between input/output V AC 3,000 (class II) 3,000 (class II) Dielectric strength between input/PE V AC 1,500 (class I) 1,500 (class I) Ambient temperature range *** C 20...+70 20...+70 Protection category IP 20 IP 20 Approvals (according to type) 2 XII-2012, www.findernet.com