Power Supplies SCD Series, Encapsulated, Industrial DC to DC Converter These compact, rugged DC to DC converters are power supplies designed to power industrial control instrumentation devices and equipment where AC power is not convenient or accessible. With high reliability and wide input range, these units can operate through the most difficult factory floor conditions around the globe. User friendly applies to these unique power supplies that feature easy-to-install DIN Rail and chassis mounting. Terminations are also easy to access and simple to wire. Encapsulated design meets IP20 specifications for use in harsh environments. Applications These units regulate voltage for sensitive electronic E137632 E61379 equipment run from battery power. For example, a 24 Vdc battery system where the battery voltage can be 30 volts, sometimes higher during charging, and dip below 22 volts under heavy load. The SCD can be used to stabilize the voltage for those devices not designed to handle wider voltage swings. Options and Accessories They are also a convenient and inexpensive alternative to SCP-MDC Pair of metal DIN clips running AC power through a large industrial machine. The SCP-PDC 1 plastic DIN clip with lever for SCD can use 24 Vdc commonly available on many parts removal from rail of the machine to create other voltages needed to run sensors, transducers and other devices that the machine Certifications and Compliances requires to work properly. Listed, Ind. Control Equip., E61379 Industrial - UL 508/CSA C22.2 No. 107.1 - Encoders, special sensors, communications Recognized Component, ITE, E137632 UL 60950 and instrumentation E137632 CUL/CSA-C22.2- UL 60950/CSA C22.2 No. 234-M90 No. 234-M90 Telecommunications systems -IEC/EN60950-1 Remote Site/Harsh Environment IP20 RoHS Compliant Features DIN Rail or Chassis mount by removing DIN clips Rugged, encapsulated design to resist environment IP20 protection Wide 20 to 72 Vdc input range M3 screw clamp terminations Simple snap-on for DIN Rail TS35/7.5 or TS35/15 Galvanic isolation Five year limited warranty Visit our website at www.emerson.com or contact Technical Services at (800) 377-4384 with any questions. 154 January 2017Power Supplies SCD Series, Encapsulated, Industrial DC to DC Converter Selection Table Specifications Parameter Condition Value Output Voltages Low Profile Min Input Catalog Description V1 V2 Load 20 - 72 Vdc Number V1 A Input Voltage Vdc A Vdc A EN 55011/B, 55022/B Filtering EMI/RFI 30 Watts Switching DC Power Supply Typ. 100 kHz Switching Frequency Output 5 V 5 5 - - 0 SCD 30S5-DN V = 48V, Output Voltage in V1 1%, V2 4% 12 V 12 2.5 - - 0 SCD 30S12-DN I = max, 25C Accuracy out V = min, 15 V 15 2 - - 0 SCD 30S15-DN in 1%, V Ripple out I =max, 25C out 24 V 24 1.3 - - 0 SCD 30S24-DN V = min, in 2%, V Noise out I = max, 25C out 48 V 48 0.6 - - 0 SCD 30S48-DN V =min/max 25C in +0.5%, V Line Regulation out I = max, 25C Dual O/P+15 V 15 0.8 -15 0.8 0.15 SCD 30D15-DN out I = 10 to 90 to 10%, out +0.5%, V Load Regulation out 25C, V = 48 V, 25C in Overcurrent Protection 105 to 130% I nom Dimensions - in (mm) Load Regulation Timing 10 to 90 to 10%, 25C <4 ms Temperature Coefficient T = -25 to +65C 0.01%/K A D= .16 (4.2) Continuous Overload/Short Circuit Derating Single/Dual/ T >50C 5%/K max A Triple General V = 48 V >10 ms Holdup Time in -25 to +65C Operating Temperature T = 25C 45 to +85C Storage Temperature A Case Temperature Rise at 45 K max Full Load MTBF at 25C acc. MIL-STD-217F 800,000 hrs (input/output) EN61000-4-2, 3, 4, 5 Transient Protection Convection Cooling 0.8 lbs (.39 kg) Weight - lbs (kg) UL94-VO Case Material/Potting IP20 Protection Note: No input protection against reverse voltage. 1.29 (33.0) .24 2.08 (53.0) (6.0) 2.55 (65.0) Pin-Out SCD 30 1 2 3 6 7 +V1 -V1 +IN -IN Single V1 COM V2 +IN -IN Dual Visit our website at www.emerson.com or contact Technical Services at (800) 377-4384 with any questions. 155 January 2017 2.26 (57.5) .18 4.16 (106.0) (4.5) 4.51 (115.0) 4.71 (120.0)