2
228-1301 REV 4
082306
KEPCO, INC.
"
131-38 SANFORD AVENUE
"
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
"
email: [email protected]
ALARM CIRCUIT.
The HSF includes an isolated internal relay offering normally closed and normally open contacts refer-
enced to an isolated common. These contacts may be used to configure “close on failure” or “open on failure” alarm circuits.
(Refer to the Series RA 19-(X)B Manual for alarm configurations for multiple HSF power supplies.)
KEYING.
Keying of the HSF is established at the factory. The output voltage determines which keyway is open. When the
corresponding rack adapter key (pin) is installed by the user, only a power supply of the correct voltage can be inserted in the
rack adapter slot.
FIGURE 1. HSF 150 WATT POWER SUPPLIES (6) INSTALLED IN RA 19-6B RACK ADAPTER
III — SPECIFICATIONS
The following specifications apply to all HSF 150 Watt Series models (also refer to Table 1). Other models are also available;
consult your Kepco representative for their specifications.
INPUT:
Voltage: 120V a-c/240V a-c nominal; Range 95-264V a-c; 125-370V d-c. (polarity insensitive)
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: 3.0A a-c typ., 3.5A a-c max;
@240V a-c rms: 1.5A a-c typ., 2.0A a-c max.
Initial Turn-on Surge: (one-half of first input cycle): @120V a-c rms, 25A max; @240V a-c rms, 50A max. When the a-c
input power is removed, the inrush current limit circuit requires 30 seconds recovery time before the a-c input power
is reconnected.
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 <1 ms (load change t
r
or t
f
equal to or greater than 50
µ
sec).
START-UP TIME:
200 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: 3KV 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.
