1
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Edition 5/07/01
Rugged electrical and mechanical design, hot
swappable
Battery chargers for 24 and 48 V lead acid
batteries with remote temperature control
Operating ambient temperature range
25...71
C with convection cooling
T Series
500 Watt AC-DC Converters
Universal input range 70...255V AC with PFC
Single outputs up to 56.5 V DC
4 kV AC I/O electric strength test voltage
Selection chart
Output Voltage
Temperature
Output current
Input voltage
Type
Options
1
at 0.5 x
I
o nom
coefficient
I
o nom
U
i
[V DC]
of output [mV/K]
[A]
[V AC]
24.25
5
16
70...140
UT 1201-7
B1
24.25
5
16
85...255
LT 1201-7
B1
25.25...28.25
3
14.5
70...140
UT 1240-7Z
B1, D
25.25...28.25
3
14.5
85...255
LT 1240-7Z
B1, D
48
5
11
70...140
UT 1702-7
B1
48
5
11
85...255
LT 1702-7
B1
50.5...56.5
3
10.2
70...140
UT 1740-7Z
B1, D
50.5...56.5
3
10.2
85...255
LT 1740-7Z
B1, D
54.5
5
10
70...140
UT 1701-7
B1
54.5
5
10
85...255
LT 1701-7
B1
1
Availability on request.
LGA
2
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Edition 5/07/01
Cassette Style
T Series
Input
Input voltage AC
refer to selection chart
Input frequency
47/63 Hz
Power factor
active PFC
>0.96
Inrush current
virtually no inrush current
Output
Efficiency
U
i nom
,
I
o nom
up to 93 %
Output voltage setting accuracy
U
i nom
, 50 %
I
o nom
0.25 V
Output voltage noise (total)
IEC/EN 61204, including a sinusoidal output ripple at
twice the line frequency
1.1 V
pp
Line regulation
U
i min
...
U
i max
,
I
o nom
typ. 1.6 %
Load regulation
U
i nom
, 1...100 %
I
o nom
typ. 2.5 %
Minimum load
not required
Current limitation
constant power, constant current characteristic
typ. 145 %
I
o nom
Operation in parallel
enabled by droop current share
Hold-up time
I
o nom,
output voltage decrease to 85%
U
o nom
16 ms
Protection
Input fuse
built-in, UT/LT
10 A slow blow/6.3 A fast
Reverse polarity
bridge rectifier
Input undervoltage lockout
typ. 90 %
U
i min
Input overvoltage lockout
typ. 104 %
U
i max
Input transient
varistor
Output
no-load, overload and short circuit proof
Output overvoltage
second control loop
30/60 V SELV
Overtemperature
switch-off with auto restart
T
C
typ. 100
C
Control
Output voltage adjustment
U
cr
input for remote control
93...104%
U
o nom
Inhibit
output enabled if inhibit left open
Output undervoltage monitoring threshold level externally adjustable
Status monitoring
system good (Sys OK, Uo OK, no int. or external fault)
Status indication
LEDs: Sys OK,
U
o
OK and Error
Safety
Approvals
EN 60950, UL 1950, CSA 22.2 No. 950
Electric strength test voltage
class I, I/case
2 kV AC
class I, I/O
4 kV AC
class I, O/case
1 kV AC
Degree of protection
IP 30
3
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Edition 5/07/01
S10079
6
10
14
18
22
26
30
4
8
12
16
20
24
28
32
Pin allocation
Pin
Electrical determination
Design.
4
Phase
P
6
Neutral
N
8
Protective earth
10
Protective earth
12
Output voltage positive
Vo+
14
Output voltage positive
Vo+
16
Hot plug-in contact, positive
HC+
18
Hot plug-in contact, negative
HC
20
Output voltage negative
Vo
22
Output voltage negative
Vo
24
System good signal input
Sys In
26
System good signal output
Sys Out
28
Inhibit input or remote control input
i/
U
cr
30
Power down signal
D
32
Power down signal threshold of
U
o
D set
T Series
500 Watt AC-DC Converters
EMC
Electrostatic discharge
IEC/EN 61000-4-2, level 4, contact/air
8/15 kV, criterion A
Electromagnetic field
IEC/EN 61000-4-3, level 3
10 V/m, criterion A
Electr. fast transients/bursts
IEC/EN 61000-4-4, level 4, capacitive/direct
2/4 kV, criterion A
Surge
IEC/EN 61000-4-5, level 3
2 kV, criterion A
Conducted disturbances
IEC/EN 61000-4-6, level 3
10 V
rms
, criterion A
Electromagnetic emissions
CISPR 22/EN 55022, conducted
class B
Environmental
Operating ambient temperature
U
i nom
,
I
o nom
, convection cooled
25...71
C
Operating case temperature
T
C
U
i nom
,
I
o nom
25...95
C
Storage temperature
non operational
40...100
C
Damp heat
IEC/EN 60068-2-3, 93 %, 40
C
56 days
Vibration, sinusoidal
IEC/EN 60068-2-6, 2...28/28...2000 Hz
1.5 mm/5 g
n
Shock
IEC/EN 60068-2-27, 6 ms
100 g
n
Random vibration
IEC/EN 60068-2-64, 20...500 Hz
4.9 g
n rms
MTBF
MIL-HDBK-217E, G
B
, 40
C
198'000 h
Options
Remote bus voltage monitoring
D
Battery cell voltage selector switch
Z
Mounting plate for chassis mounting
B1
4
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Edition 5/07/01
Mechanical data
Tolerances
0.3 mm (0.012") unless otherwise indicated.
Cassette Style
T Series
3U/111 (4.37")
94.8 (3.73")
171.93 (DIN 41494) (6.77")
28 TE/142.2 (5.6")
30 (1.18")
Potentiometer
Case temperature measuring point 1
S09036
Measuring point 2
of case temperature
T
C
Input fuse
(Option)
60 (2.36")
Measuring point 1
of case temperature
T
C
Cell voltage
selector switch
European
Projection
Accessories
Front panels 19" (Schroff)
Mating H15 connectors with screw, solder, fast-on or press-fit terminals
Connector retention facilities and code key system for connector coding
Back planes for system integration
19" racks for system integration
Temperature sensors for battery charging
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