Datasheet

787-1702
Switched-Mode Power Supply, 1-Phase
EPSITRON
®
ECO Power
L
N
DC+
DC+
DC -
DC -
• Primary switch mode power supply unit
• Protection class I
• Natural convection cooling when horizontally mounted
•
Enclosed for use in switchgear cabinets
• Parallel operation, series connection possible
• Electrically isolated output voltage (SELV) acc. to EN 60950-1/UL 60950-1
• DIN-35 rail mountable in different positions
• Installation width (as delivered): 30 mm
• Direct installation on mounting plate via cable grip
Description
Item No.
Pack.
Unit
Switched-mode power supply,
24 VDC / 1.25 A
787-1702 1
Technical Data
Input:
Nominal input voltage V
i nom
Input voltage range
Frequency
Input current I
i
Discharge current
Inrush current
Mains failure hold-up time
(100) 110 V … 240 V
AC
90
V … 264 V AC;
125 V … 375 V DC
47 Hz … 63 Hz
0.3 A typ. at 230 VAC;
0.6 A typ. at 115 VAC
< 3.5 mA
< 18 A
> 10 ms at 230 VAC
Output:
Nominal output voltage V
o nom
24 VDC (SELV)
Output voltage range 22 26 VDC adjustable
Factory preset 24 VDC
Output current I
o
1.25 A at 24 VDC and 110 … 240 VAC
1 A at 24 VDC and 100 … 240 VAC
Adjustment accuracy < 1 %
Residual ripple < 200 mV (peak-to-peak) up to 20 MHz
Overload behavior Constant power
(in overload range: 1.05 1.4 x I
o
);
shutdown and automatic restart in the
event of a short circuit
Operational indication Green LED (24 V DC OK)
Efficiency/Power losses:
Efficiency > 80 % (at 230 VAC and 1.25 ADC)
Fuse protection:
Internal fuse F 1 A / 250 V
External fuse Circuit breakers B6, B10;
An external DC fuse is required for the
DC input voltage
Technical Data
Environmental requirements:
Ambient operating temperature -20 °C … +60 °C
Storage temperature -25 °C … +75 °C
Relative humidity 10 % … 95 % (no condensation)
Derating -3 % / K (> 45 °C)
Overvoltage category II
Degree of pollution 2 (acc. to EN 50178)
Climatic category 3K3 (acc. to EN 60721)
Safety and protection:
Test voltage
PRI–SEC/PRI–GND/SEC–GND 3 kV AC kV / 1.5 kV AC kV / 0.5 kV AC
Protection class I
Degree of protection IP20 (acc. to EN 60529)
Overvoltage protection Via varistor at primary circuit
Short circuit protection Yes
No-load proof Yes
Feedback voltage 28 VDC
Parallel operation Yes
Series connection Yes
MTBF > 100000 h (acc. to MIL-HDBK-217)
Connection and mounting type:
Wire connection CAGE CLAMP
®
(WAGO 231 Series)
Cross sections 0.08 … 2.5 mm² / 28 … 12 AWG
(12 AWG: THHN, THWN)
Strip lengths 6 … 7 mm / 0.24 … 0.28 in
Mounting type DIN-rail-mount (EN 60715)
Dimensions and weight:
Dimensions (mm) W x H x L 99 x 90 x 30
Length from upper-edge of DIN-rail
Weight ca. 250 g
Standards and specifications:
Standards/specifications EN 60950, EN 61204-3, EN 60335,
UL 60950, UL 508
WAGO Kontakttechnik GmbH & Co. KG
Subject to design changes
26.01.2017
Postfach 2880 - D-32385 Minden
Hansastr. 27 - D-32423 Minden
Tel.: [phone] E-Mail: [e-mail]
Fax: [phone] www.wago.com