Datasheet

787-734
Switched-Mode Power Supply, 1-Phase
EPSITRON
®
ECO Power
DC+
DC+
DC -
DC -
DC -
DC O.K.
L
N
• Prepared for class I equipment
• Natural convection cooling when horizontally mounted
• Enclosed for use in switchgear cabinets
• Fast and tool-free termination via lever-actuated terminal blocks
• Bounce-free switching contact (DC OK)
• Parallel operation
• Electrically isolated output voltage (SELV) acc. to EN / UL 60950-1
Description
Item No.
Pack.
Unit
Switched-mode power supply,
24 VDC / 20 A
787-734 1
Technical Data
Input:
Nominal input voltage V
i nom
100 ... 240 VAC
Input voltage range 85 ... 264 VAC; 130 ... 373 VDC
Frequency 47 Hz ... 63 Hz
Input current Ii 3 A typ. at 230 VAC;
6.0 A at 115 VAC
Discharge current 1.7 mA
Inrush current < 30 A
Mains failure hold-up time > 20 ms at 230 VAC
Output:
Nominal output voltage V
o nom
24 VDC (SELV)
Output voltage range 22 ... 28 VDC adjustable
Output current I
o
20 A at 24 VDC
Factory preset 24 VDC
Adjustment accuracy 1 %
Residual ripple < 100 mV (peak-peak)
Overload behavior Constant power
(in overload range: 1.15 ... 1.4 x I
o
);
shutdown and automatic restart in the event
of a short circuit
Operational indication LED green (24 V DC o.k.),
LED red (overload)
Efficiency/Power losses:
Efficiency 90 % typ.
Power loss P
V
65 W (230 VAC / nominal load)
Max. power loss P
V
107 W typ. (110 VAC / 24 VDC, 23 A)
Fuse protection:
Internal fuse 16 AT / 250 V
External fuse Circuit breakers 10 A, 16 A,
characteristic: B or C
An external DC fuse is required for the DC
input voltage
Technical Data
Environmental requirements:
Ambient operating temperature -25 °C ... +70 °C
Storage temperature -25 °C ... +85 °C
Rel. humidity 95 % (no condensation)
Derating see instruction manual
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 / 1.5 kV AC / 0.5 kV AC
Protection class Prepared for class I equipment
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 29 VDC
Parallel operation yes
Series connection yes
MTBF > 250000 h
Connection and type of mounting:
Wire connection Input/Signalising: WAGO 2706 Series
Output: WAGO 2716 Series
Cross sections Input/Signalising:
0.5 mm² ... 6 mm² / AWG 20 ... 10
Output:
1.5 mm² ... 16 mm² / AWG 16 ... 6
Strip lengths Input/Signalising: 11 ... 12 mm / 0.45 in
Output: 12 ... 13 mm / 0.47 in
Type of mounting DIN-rail mount (EN 60715)
Dimensions and weight:
Dimensions (mm) W x H x L 115 x 136 x 144
Length from upper-edge of DIN 35 rail
Weight 2120 g
Standards and approvals:
Standards/Specifications EN 60950 (SELV), EN 61000-6-2,
EN 61000-6-3
UL 60950, UL 508* (* pending)
WAGO Kontakttechnik GmbH & Co. KG
Subject to design changes
14.01.2015
Postfach 2880 - D-32385 Minden
Hansastr. 27 - D-32423 Minden
Tel.: [phone] E-Mail: [e-mail]
Fax: [phone] www.wago.com