Page 273 - Wagp_InterfaceElectronic_Volume4_2015_US.pdf

787-821

Switched-Mode Power Supply, 1-Phase 5

®
EPSITRON PRO Power 271

Stand-by
DC O.K.
L
DC+
N DC+
DC -
DC -

• Primary switch mode power supply unit with PowerBoost and TopBoost Pack.
• Stand-by input for switching off the output and minimizing power Description Item No. Unit
consumption Switched-Mode Power Supply, 787-821 1
• DC OK contact for output monitoring 12 V DC / 10 A
• Parallel operation, series connection possible 5
• Prepared for class I equipment
• Natural convection cooling when horizontally mounted
• Enclosed for use in switchgear cabinets
• Electrically isolated output voltage (SELV) acc. to EN 60950-1/UL 60950

Technical Data Technical Data

Input: Environmental requirements:
Nominal input voltage Vi nom 110 ... 240 VAC Ambient operating temperature -25 °C ... +70 °C
Input voltage range 85 ... 264 VAC; 120 ... 350 VDC Storage temperature -25 °C ... +85 °C
Input voltage derating -5 % / V AC < 95 VAC Rel. humidity 30 % ... 85 % (no condensation)
Frequency 50 Hz ... 60 Hz Derating -3 % / K (> +50 °C)
Input current Ii 0.97 A at 230 VAC and 10 ADC Degree of pollution 2 (acc. to EN 50178)
Discharge current 1 mA typ. Climatic category 3K3 (acc. to EN 60721)
Inrush current < 30 A (peak) Safety and protection:
Mains failure hold-up time 35 ms typ. at 230 VAC Test voltage pri.-sec./ pri.-gr. / sec.-gr. 4.2 kV DC / 2.2 kV DC / 0.7 kV DC
Output: Protection class Prepared for class I equipment
Nominal output voltage Vo nom 12 VDC (SELV) Degree of protection IP20 (acc. to EN 60529)
Output voltage range 11 ... 18 VDC adjustable Overvoltage protection via varistor at primary circuit
Output current Io 10 A at 12 V DC Short circuit protection yes
PowerBoost 20 ADC (for 4 s); 15 ADC (for 8 s) No-load proof yes
TopBoost 60 ADC (for 25 ms); Feedback voltage max. 25 VDC
40 ADC at V IN < 110 VAC (for 25 ms) Parallel operation yes
Factory preset 12 VDC Series connection yes
Adjustment accuracy 1% Connection and type of mounting:
Residual ripple < 70 mV (peak-to-peak) Wire connection Input/Output: WAGO 231 Series
Current limitation 1.1 x Io typ. Signalising: WAGO 733 Series
Overload behavior TopBoost / PowerBoost /Constant current Cross sections Input/Output:
Operational indication LED green (DC O.K.), LED red (error) 0.08 mm² ... 2.5 mm² / AWG 28 ... 12
Signaling Relay contact DC O.K. (changeover Signalising:
contact) 0.08 mm² ... 0.5 mm² / AWG 28 ... 20
Efficiency / power losses: Strip lengths Input/Output: 8 ... 9 mm / 0.33 in
Efficiency 87.8 % typ. Signalising: 5 ... 6 mm / 0.22 in
0.5 W (stand-by) / 5.0 W (no load) / Type of mounting DIN-rail mounting (EN 60715) in
Power loss P V
14.6 W (rated load) 2 positions
Fuse protection: Dimensions and weight:
Internal fuse T 4 A / 250 V Dimensions (mm) W x H x L 57 x 163 x 163
External fuse Circuit breakers 6 A, 10 A, 16 A, (incl. female connector)
characteristic: B or C Length from upper-edge of DIN 35 rail
An external DC fuse is required for the DC Weight 1295 g
input voltage Standards and approvals:
Standards/Specifications EN 60950, EN 61204-3, UL 60950,
UL 508