S78 Series
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Switch mode power supplies 78 Building automation Elevators and lifts Automation for blinds, grilles and shutters Hoists and cranes Panels for electrical distribution Pump Control

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78 SERIES Switch mode power supplies 78.25….2400 25 W Low profile Modular DC Power Supplies for electrical cabinets • Low (< 0.4 W) stand-by power consumption • Thermal protection: internal, with Vout shutdown - power OFF to reset • Short circuit protection: Hiccup (auto-recovery) • Overvoltage protection: Varistor • Flyback topology • Compliant with EN 60950-1 and EN 61204-3 • Parallel working for automatic redundancy with OR diodes • Dual Polarity and Series connection permissible • 35 mm rail (EN 60715) mount Screw terminal F For outline drawing see page 19 Output specification Output...

78 SERIES Switch mode power supplies 36 W, 60 W and 50 W High efficiency, low profile Modular DC Power Supplies for electrical cabinets Type 78.36 --Output 24 V DC, 36 W --Input fuse: Easily replaceable plus spare --70 mm (4-module) wide x 61 mm deep Type 78.60 --Output 24 V DC, 60 W Type 78.50 --Output 12 V DC, 50 W • High efficiency (up to 91%) • Low (< 0.4 W) stand-by power consumption • Thermal protection: internal, with Vout shutdown - power OFF to reset • Short circuit protection: Hiccup (auto-recovery) mode • Input fuse: Easily replaceable plus spare • Overvoltage protection:...

78 SERIES Switch mode power supplies [0finder 60 W and 50 W High efficiency, low profile Modular DC Power Supplies for electrical cabinets Fold-Back overload characteristics for Battery charging applications and parallel working for increased load current Type 78.61 - Output 24 V DC, 60 W Type 78.51 - Output 12 V DC, 50 W • High efficiency (up to 91%) • Low (< 0.4 W) stand-by power consumption • Thermal protection: internal, with Vout shutdown - power OFF to reset • Short circuit protection: Hiccup (auto-recovery) mode • Overload protection: Fold-back mode • Input fuse: Easily replaceable...

Industrial Switch Mode DC Power Supplies: 110 W to 130 W Type 78.1B - Output 24 V DC, 110 W, compact size - Secure electrical separation (SELV according to EN 60950) Type 78.1D - Output 24 V DC, 130 W - Double stage active Power Factor Correction • Fold-Back overload characteristics for Battery charging applications and parallel working for increased load current (78.1D) • High efficiency (up to 93%) • Low stand-by power consumption (down to 1 W) • LLC (78.1B) or forward topology (78.1D) • Thermal protection: internal with pre-alert alarm via LED and auxiliary contact, and with * 24 V DC,...

78 SERIES Switch mode power supplies Industrial Switch Mode DC Power Supply: 240 W Overload characteristics support parallel working for increased load current Type 78.2E --Output 24 V DC, 240 W --Double stage active Power Factor Correction • High efficiency (up to 93%) • Low stand-by power consumption • Forward topology • Thermal protection: internal with pre-alert alarm via LED and auxiliary contact, and with Vout safety shutdown - power OFF to reset • Overload indication: Pre-alert alarm via LED and auxiliary contact indication • Boost current: Without time limit, with LED and auxiliary...

78 SERIES Switch mode power supplies Ordering information Example: 78 series switch mode power supply, 36 W - 24 V DC output, supply voltage 110...240 V AC, replaceable fuse. Voltage conversion- 1 = AC/DC input, DC output Input voltage- D: 0 = Standard 1 = Replaceable fuse 3 = Replaceable fuse + output voltage regulator 4 = Fuse + regulator + positive logic contact 5 = Fuse + regulator + pre-alarm contact C: 0 = Standard 1 = Double stage, with PFC (Power Factor Correction)

78 SERIES Switch mode power supplies Technical data EMC specifications (according to EN 61204-3) input fuse may blow for surges higher than 1.5 kV input fuse may blow for surges higher than 2 kV

78 SERIES Switch mode power supplies Output specification L78-1 Output current v ambient temperature (78.12) P78-1 Output peak current v time (78.12) L78-2 Output current v ambient temperature (78.25) P78-1 Output peak current v time (78.25) P78-2 Output peak current v time (78.36) L78-2 Output current v ambient temperature (78.36)

78 SERIES Switch mode power supplies Output specification L78-3 Output current v ambient temperature (78.60) P78-3 Output peak current v time (78.60) L78-4 Output current v ambient temperature (78.50/51) P78-4 Output peak current v time (78.50/51) L78-5 Output current v ambient temperature (78.61) P78-5 Output peak current v time (78.61)

78 SERIES Switch mode power supplies Output specification L78-6 Output current v ambient temperature (78.1B) P78-6 Output peak current v time (78.1B) L78-7 Output current v ambient temperature (78.1D) P78-7 Output peak current v time (78.1D) L782E-1 Output current v ambient temperature (78.2E) P782E-1 Output peak current v time (78.2E)

78 SERIES Switch mode power supplies Output specification FB78-5 Output voltage v output current (78.2E) I: Output characteristic for temperature up to 50 °C II: Output characteristic for temperature up to 25 °C * / ***: See LED table below Hiccup mode Overload current Load current Under normal conditions, the 78 Series Power Supply supplies the current required by the load. However, under abnormal conditions such as a short circuit or heavy overload (T0) the output voltage will be rapidly reduced to zero - followed by the current (T1). After approximately 2 seconds (T1 to T2), the power...

78 SERIES Switch mode power supplies Fold-back technology and battery charging Fold-back technology allows load current to be maintained under conditions of heavy overload. In case of heavy overload, the fold-back circuit will provide the output current and the output voltage, in accordance with the relevant "FB" diagram. In practice, when overcurrent is drawn by the load, the fold-back circuit reduces the output voltage supplying the current up to the maximal value, then it starts to work in hiccup mode. Also in case of short circuit, the power supply will work in hiccup mode. Both these...