Datasheet

787-1644
Switched-Mode Power Supply, 3-Phase
EPSITRON
®
CLASSIC Power
DC+
DC+
DC -
DC -
DC O.K.
L1
L2
L3
• Primary switch mode power supply unit with TopBoost, enabling secondary-
side protection via electronic circuit breakers
• Suitable for protection class I equipment
• Natural convection cooling when horizontally mounted
• Enclosed for use in switchgear cabinets
•DC OK contact
• 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/ 40 A
787-1644 1
Technical Data
Input:
Nominal input voltage V
i nom
3 x (2 x) AC 400 … 500 VAC
Input voltage range 320 V … 575 VAC; 450 V … 800 VDC
Frequency 47 Hz … 63 Hz; 0 Hz
Input current I
i
3 x 2.15 A (400 VAC);
3 x 1.82 A (500 VAC)
Inrush current < 30 A, NTC
Mains failure hold-up time 25 ms (500 VAC);
15 ms (400 VAC)
Output:
Nominal output voltage V
o nom
24 VDC (SELV)
Output voltage range 23 V … 28.5 VDC adjustable
Factory preset 24 VDC
Output current I
o
40 A at 24 VDC
Adjustment accuracy < 1 %
Residual ripple 30 mV (peak-to-peak) typ.
Current limitation 1.1 x I
o
typ.
Overload behavior Constant current
Operational indication Green LED (V
o
)
Signaling DC OK contact;
Make contact (max. 30 V / 1 A)
Efficiency/Power losses:
Efficiency 92 % typ.
Power loss P
V
4.2 W (no load);
83.9 W (400 VAC. nominal load)
Max. power loss P
V
83.9 W (500 VAC / 24 VDC, 40 A)
Fuse protection:
Internal fuse -
External fuse 3 x circuit breakers 10 A, 16 A,
B or C characteristic;
or motor circuit breakers
An external DC fuse required for DC input
voltage
Technical Data
Environmental requirements:
Ambient operating temperature -25 °C … +70 °C;
Device start at -40 °C type-tested
Storage temperature -25 °C … +85 °C
Relative humidity 5 % ... 96 % (no condensation permissible)
Derating -2.5 %/K (> 55 °C)
Safety and protection:
Test voltage PRI–SEC 4.2 kV DC
Protection class Prepared for class I 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
Connection and mounting type:
Wire connection Input/Signaling: WAGO 721 Series
Output: WAGO 831 Series
Cross sections Input/Signaling:
0.08 mm² … 2.5 mm² / 28 … 12 AWG
Output:
0.5 mm² … 10 mm² / 20 … 8 AWG
Strip lengths Input/Signaling:
8 … 9 mm / 0.31 … 0.35 in
Output: 13 … 15 mm / 0.51 … 0.59 in
Mounting type DIN-rail-mount (EN 60715)
Dimensions and weight:
Dimensions (mm) W x H x L 126 x 127 x 198
Length from upper-edge of DIN-rail
Weight 2800 g
Standards and specifications:
Standards/Specifications EN 60950-1, EN 61204-3,
UL 60950-1, UL 508, GL*
(* pending)
WAGO Kontakttechnik GmbH & Co. KG
Subject to design changes
26.03.2015
Postfach 2880 - D-32385 Minden
Hansastr. 27 - D-32423 Minden
Tel.: [phone] E-Mail: [e-mail]
Fax: [phone] www.wago.com