Datasheet

787-1014
4
146
INTERFACE ELECTRONIC
Switched-Mode Power Supply
EPSITRON
®
COMPACT Power
Similiar to picture
IN+
DC+
DC+
DC -
DC -
IN-
• Primary switch mode power supply unit
• Suitable for protection class II equipment
• Natural convection cooling when horizontally mounted
• Stepped profile, ideal for distribution boards or distribution boxes
• Suitable for both parallel and series operation
•
Electrically isolated output voltage (SELV) acc.
to EN 60950-1/UL 60950-1
Description
Item No.
Pack.
Unit
Switched-mode power supply,
24 VDC / 2.0 A
787-1014 1
Technical Data
Input:
Nominal input voltage V
i nom
Input voltage range
Frequency
Input current Ii
Inrush current
Mains failure hold-up time
110 VDC
77 V … 140 VDC
0 Hz
0.77 A at 77 VDC /
0.42 A
at 140 VDC
< 30 A, NTC
>
8 ms at 77 VDC /
> 25 ms at 140 VDC
Output:
Nominal output voltage V
o nom
24 VDC (SELV)
Output current I
o
2.0 A at 24 VDC
max. 1.6 A in any mounting position
Factory preset 24 VDC
Adjustment accuracy 2 %
Residual ripple < 100 mVpp at 20 MHz
Current limitation 1.1 x Io typ.
Overload behavior Constant current
Operational indication LED green (Va)
Efficiency/Power losses:
Efficiency 85 % typ.
Power loss P
V
1.9 W (110 VDC/no load),
9.9 W (110 VDC/nominal load)
Max. power loss P
V
9.9 W typ. (77 VDC / 24 VDC, 2 A)
Fuse protection:
Internal fuse 4 AT (125 VDC)
External fuse 6 A, 10 A power circuit breakers,
B, C characteristics
Technical Data
Environmental requirements:
Ambient operating temperature
Storage temperature
Rel. humidity
Derating
Degree of pollution
Climatic category
Shock and vibration
-40 °C … +70 °C
-40 °C … +85 °C
30
% …
80 % (varnished PCB)
-1.5 %/K (> 55 °C)
2 (acc. to EN 50178)
3K3 (acc. to EN 60721)
Category 1, class B
(acc. to EN 61373:2010)
Safety and protection:
Enclosure Plastic, light gray,
Flammability class V0 acc. to UL94
Test voltage pri. - sec. 4.2 kV DC
Protection class Prepared for class II equipment
Degree of protection IP20 (acc. to EN 60529)
Overvoltage protection Varistor (input side);
internal protective circuit,
< 40 VDC (output side in case of an error)
Short circuit protection yes
No-load proof yes
Feedback voltage max. 35 VDC
Parallel operation yes
Series connection yes
MTBF > 500000 h
Connection and type of mounting:
Wire connection Input/Output: WAGO 740 Series
Cross sections Input/Output:
0.08 mm² … 2.5 mm² / AWG 28 … 12
Strip lengths Input/Output:
6 … 7 mm / 0.24 … 0.28 in
Type of mounting DIN-rail mount (EN 60715)
Dimensions and weight:
Dimensions (mm) W x H x L 72 x 89 x 59
Height: 55 mm, from upper-edge
of DIN 35 rail
Weight 250 g
Standards and approvals:
Standards/Specifications EN 60950, EN 61204-3,
UL 60950 *, UL 508 *, GL *
* (pending)
WAGO Kontakttechnik GmbH & Co. KG
Subject to design changes
22.05.2014
Postfach 2880 - D-32385 Minden
Hansastr. 27 - D-32423 Minden
Tel.: [phone] E-Mail: [e-mail]
Fax: [phone] www.wago.com