File E186249
Project 05CA32804
July 28, 2005
REPORT
On
COMPONENT - POWER SUPPLIES, INFORMATION TECHNOLOGY EQUIPMENT
Astec International Limited Philippines Branch
Quezon City 1110, Philippines
Copyright © 2005 Underwriters Laboratories Inc.
Underwriters Laboratories Inc. authorises the above-named company to
reproduce this Report provided it is reproduced in its entirety.
Underwriters Laboratories Inc. authorises the above-named company to
reproduce the latest pages of that portion of this Report consisting of
this Cover Page through Page 2.
File E186249
Vol. 1
and Report
Sec. 212
Page 1
Issued: 2005-07-28
Revised: 2005-09-29
DESCRIPTION
PRODUCT COVERED:
USR, CNR Component – DC-DC Converter, Models ALD12A48, ALD18F48,
ALD25Y48, ALD25M48, ALD25K48 and ALD20G48 for use
in Information Technology Equipment.
ELECTRICAL RATINGS:
MODEL
INPUT
DC +36 to +75 V
2.4 A
Maximum output power is 60 W
OUTPUT
ALD12A48
DC +5 V, 12 A Max.
ALD18F48
DC +3.26 - +3.34 V, 18 A Max.
ALD25Y48
DC +1.8 V, 25 A Max.
ALD25M48
DC +1.5 V, 25 A Max.
DC +36 to +75 V
2.4 A
Maximum output power is 60 W
DC +36 to +75 V
1.6 A
Maximum output power is 45 W
DC +36 to +75 V
1.4 A
Maximum output power is 38 W
ALD25K48
DC +36 to +75 V
1.1 A
DC +1.2 V, 25 A Max.
Maximum output power is 30 W
ALD20G48
DC +36 to +75 V
1.9 A
Maximum output power is 50 W
DC +2.5 V, 20 A Max.
File E186249
Vol. 1
Sec. 212
and Report
Page 2
Issued:
Revised:
2005-07-28
2010-03-05
ENGINEERING CONSIDERATIONS: (NOT FOR FIELD REPRESENTATIVE’S USE):
General – The unit are for use in products where the acceptability of
the combination is determined by Underwriters Laboratories Inc.
*Both USR and CNR indicate investigation to the Standards for Safety of
Information Technology Equipment, UL60950-1, Second Edition, dated March 27,
2007 and CAN/CSA-C22.2 No. 60950-1-07, dated March, 2007.
Conditions of Acceptability – When installed in the end-use equipment,
the following are the considerations to be made:
*1.
These DC-DC converter have been judged on the basis of the required
creepages and clearances in the Second Edition of the Standard for
Safety of Information Technology Equipment, UL60950-1 and
CAN/CSA-C22.2 No. 60950-1-07, which covers the end-use product for
which the component was designed. The functional insulations have been
evaluated by conducting Component Failure Test per sub-clause 5.3.4 (c)
of UL60950-1 and CAN/CSA-C22.2 No. 60950-1-07.
2.
These DC-DC converters have only been evaluated for use in pollution
degree 2 environment.
3.
A suitable enclosure shall be provided by end-use equipment.
4.
Model ALD12A48 has been evaluated under 200 LFM forced air cooling and
the following loading conditions:
a.
b.
c.
5.
Maximum ambient temperature up to 85 °C at 5.9 A, with 36 V input.
Maximum ambient temperature up to 85 °C at 4 A, with 75 V input.
Maximum ambient temperature up to 25 °C at 12 A, with 36 V up to
75 V input.
Model ALD18F48 has been evaluated under 200 LFM forced air cooling and
the following loading conditions at 3.34 V output voltage:
a.
b.
c.
Maximum ambient temperature up to 85 °C at 10.46 A, with 36 V
input.
Maximum ambient temperature up to 85 °C at 8.12 A, with 75 V
input.
Maximum ambient temperature up to 25 °C at 18 A, with 36 V up to
75 V input.
File E186249
6.
b.
c.
b.
c.
Issued:
Revised:
2005-07-28
2010-03-05
Maximum ambient temperature up to 85 °C at 15.10 A, with 36 V
input.
Maximum ambient temperature up to 85 °C at 12.07 A, with 75 V
input.
Maximum ambient temperature up to 25 °C at 25 A, with 36 V up to
75 V input.
Maximum ambient temperature up to 85 °C at 10.8 A, with 36 V
input.
Maximum ambient temperature up to 85 °C at 9.2 A, with 75 V input.
Maximum ambient temperature up to 25 °C at 25 A, with 36 V up to
75 V input.
Model ALD25K48 has been evaluated under 200 LFM forced air cooling and
the following loading conditions:
a.
b.
c.
9.
Page 3
Model ALD25M48 has been evaluated under 200 LFM forced air cooling and
the following loading conditions:
a.
8.
Sec. 212
and Report
Model ALD25Y48 has been evaluated under 200 LFM forced air cooling and
the following loading conditions:
a.
7.
Vol. 1
Maximum ambient temperature up to 85 °C at 13.6 A, with 36 V
input.
Maximum ambient temperature up to 85 °C at 8.6 A, with 75 V input.
Maximum ambient temperature up to 25 °C at 25 A, with 36 V up to
75 V input.
Model ALD20G48 has been evaluated under 200 LFM forced air cooling and
the following loading conditions:
a.
b.
c.
Maximum ambient temperature up to 85 °C at 8 A, with 36 V input.
Maximum ambient temperature up to 85 °C at 4.4 A, with 75 V input.
Maximum ambient temperature up to 25 °C at 20 A, with 36 V up to
75 V input.
*9.
These power supplies are classified as Level 3 as defined by UL60950-1
and CAN/CSA-C22.2 No. 60950-1-07.
10.
These power supplies are not evaluated for end system mounting.
11.
The subject products are considered as secondary component. The DC
input of the power supplies shall be separated from the AC mains by
reinforced insulation.
File E186249
12.
Vol. 1
and Report
Sec. 212
These products have no in-line fuse.
protection with the following fuse:
Page 4
Issued: 2005-07-28
Revised: 2005-09-29
The end product must provide for
a.
(JDYX), Cooper Industries Inc Bussmann Div, Type 6125FA, rated
maximum 4 A, minimum 125 V, or Listed (JDYX) maximum rated 4 A,
minimum 125 V for ALD12A48 and ALD18F48.
b.
(JDYX), Cooper Industries Inc Bussmann Div, Type 6125FA, rated
maximum 3 A, minimum 125 V, or Listed (JDYX) maximum rated 3 A,
minimum 125 V for ALD25Y48, ALD25M48 and ALD20G48.
c.
(JDYX), Cooper Industries Inc Bussmann Div, Type 6125FA, rated
maximum 2 A, minimum 125 V, or Listed (JDYX) maximum rated 2 A,
minimum 125 V for ALD25K48.
13.
The subject products are not intended to be repaired by service
personnel in case of failure or component defect (unit can be thrown
away).
14.
These products maintain basic insulation between input circuits to
output circuits.