KEPCO, INC.
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131-38 SANFORD AVENUE
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FLUSHING, NY. 11352 U.S.A.
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TEL (718) 461-7000
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FAX (718) 767-1102
http://www.kepcopower.com
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email: [email protected]
2
228-1462 REV 5
082306
ALARM CIRCUIT.
The HSF-1U includes an isolated internal relay offering normally closed and normally open contacts ref-
erenced to an isolated common. These contacts may be used to configure “close on failure” or “open on failure” alarm cir-
cuits. An alarm is triggered by either voltage or fan failure. (Refer to the RA 19-1U Manual for alarm configurations for
multiple HSF-1U power supplies.) For details refer to Section III - ALARM.
KEYING.
Keying of the HSF-1U is established at the factory. The output voltage determines which key pins are installed.
When the proper holes in the rack adapter are blocked by keying screws installed by the user, only a power supply of the cor-
rect voltage can be inserted in the rack adapter slot. (Refer to the RA 19-1U Manual for rack adapter keying instructions.)
FIGURE 1. HSF-1U 100 WATT POWER SUPPLIES (4) INSTALLED IN RA 19-1U RACK ADAPTER
III — SPECIFICATIONS
The following specifications apply to HSF-1U 100 Watt Series models (also refer to Table 1). Other models are also avail-
able; consult your Kepco representative for their specifications.
INPUT:
Voltage: 120V a-c/240V a-c nominal; Range 85-264V a-c; 125-370V d-c. (polarity insensitive; consult factory)
Frequency: Nominal 50-60 Hz; Range 47-440Hz (at 440Hz leakage current exceeds UL/VDE safety spec.limit).
Current (nominal output at rated load): @120V a-c rms: 1.0A a-c typ., 1.2A a-c max;
@240V a-c rms: 0.5A a-c typ., 0.7A a-c max.
Initial Turn-on Surge: (one-half of first input cycle): @120V a-c rms, 45A max., @240V a-c rms, 90A max.
Brownout Voltage: 85V a-c, 110V d-c
Switching Frequency: 120KHz typical, nominal load
STABILIZATION:
Source Effect: Range 95-132V a-c or 190-264V a-c, 1.0% typ.; 2.0% max.
Load Effect: Range 10%-100% load, 1.0% typ.; 2.0% max.
Temperature Effect: Range 0
o
to 40
o
C, 1.0% typ.; 2.0% max.
Combined Effect: 2.0% typ.; 4.0% max. (includes source, load, and temperature effects).
Time Effect: 0.1% typ.; 0.5% max. (1/2 hr-8 hr at 25
o
C).
RECOVERY CHARACTERISTICS:
A step load change from 50% to 100% produces less than +4% output excursion.
Recovery occurs to 1% of the original setting in <2 ms (load change t
r
or t
f
equal to or greater than 50
µ
sec).
START-UP TIME:
500 ms. maximum.
HOLDUP TIME:
20 ms. typ. (120V a-c), 15 ms. min (100V a-c).
DIELECTRIC STRENGTH:
Between input and output: 2KV a-c for one minute.
Between input and output with Y-capacitor removed: 3.75KV a-c for one minute.
Between input and case (ground): 2KV a-c for one minute.
INSULATION RESISTANCE:
Between input and ground, output and ground, input and output;
100 Megohms min. (500V d-c).
LEAKAGE CURRENT
(UL method, 120V a-c): 0.5 mA maximum.
(VDE method, 240V a-c): 0.75 mA maximum.
SAFETY:
Designed to meet UL 1950; CSA 22.2 No. 234 (M90) Level 3, EN 60950 Units are CE marked per the Low Volt-
age Directive (LVD), 73/23/EEC and 93/68/EEC. [The standards do not apply with DC input operation]
I/O CONNECTOR:
The 24-pin I/O connector (Figure 2) is designed to mate with the corresponding connector in the
RA 19-1U Rack Adapter.
3042496
PS1
PS2
PS3
PS4
