Datasheet

787-712
Switched-Mode Power Supply, 1-Phase
EPSITRON
®
ECO Power
L
N
DC+
DC+
DC -
DC -
• Primary switch mode power supply unit
• Prepared for class I equipment
• 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
Description
Item No.
Pack.
Unit
Switched-Mode Power Supply,
24 VDC / 2.5 A
787-712 1
Technical Data
Input:
Nominal input voltage Vi nom 110 ... 240 VAC
Input voltage range 85 ... 264 VAC; 130 ... 373 VDC
Frequency 47 - 63 Hz
Input current Ii 0.7 A typ. at 230 VAC;
1.2 A at 115 VAC
Discharge current < 1 mA
Inrush current < 30 A
Mains failure hold-up time > 20 ms at 230 VAC
Output:
Nominal output voltage Vo nom 24 VDC (SELV)
Output voltage range 22 ... 28 VDC adjustable
Output current Io 2.5 A at 24 V DC
Factory preset 24 VDC
Adjustment accuracy 1%
Residual ripple < 100 mV (peak-to-peak) to 20 MHz
Overload behavior Constant power (in overload range:
1.15 ... 1.4 x Ia); 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 82 % typ.
Power loss P
V
8.3 W (at 230 VAC and 2.5 ADC)
Max. power loss P
V
11.5 W (at 110 VAC and 2.75 ADC)
Fuse protection:
Internal fuse F 2.5 A / 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 -10 °C ... +70°C
Storage temperature -25 °C ... +85 °C
Rel. humidity 95 % (no condensation)
Derating -3.3 % / K (> 55 °C at 230 VAC)
Degree of pollution 2 (acc. to EN 50178)
Climatic category 3K3 (acc. to EN 60721)
Safety and protection:
Test voltage pri.-sec./ pri.-gr. / sec.-gr. 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 28 VDC
Parallel operation yes
Series connection yes
MTBF 480000 h (acc. IEC 61709)
Connection and type of mounting:
Wire connection CAGE CLAMP
®
(WAGO 745 Series)
Cross sections 0.08 ... 4 mm² / AWG 28 ... 12
(THHN, THWN)
Strip lengths 8 ... 9 mm / 0.33 in
Type of mounting DIN-rail mount (EN 60715)
Dimensions and weight:
Dimensions (mm) W x H x L 50 x 92 x 136
Height from upper-edge of DIN 35 rail
Weight 596 g
Standards and approvals:
Standards/Specifications EN 60950, EN 61000-6-2,
EN 61000-6-3, UL 60950, UL 508,
ANSI/ISA 12.12.01 (Class I Div.2),
ATEX, IEC Ex
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