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   HSF-1UR INPUT CHARACTERISTICS: 50W, 100W, 150W
SPECIFICATION RATING DESCRIPTION CONDITION
50W 100W 150W
a-c Voltage Rated nominal 100 / 120 /220 / 240V a-c Single phase
Min-Max Range 95-265V a-c 90-265V a-c
d-c Voltage Min-Max Range 125-370V d-c (1) 130-370V d-c (1) Polarity Insensitive
Brownout min voltage 85V a-c, 110V d-c  
Input
Frequency
Nominal 50-60Hz Single phase
Range 47-440Hz (2)
EMI 110-120V a-c FCC Class B Designed to meet
220-240V a-c VDE 0871 Class B
Soft-start circuit Thermistor  
Leakage
Current
(max)
@120V a-c 0.5mA (3) 0.19mA (7) 0.45mA Den-An
@240V a-c 0.75mA (6) 0.45mA 0.65mA IEC 950 and UL 1950
Start-up
Time
(max)
100V a-c 500mS 500mS 300mS  
240V a-c 500mS 300mS 200mS  
Hold-up
Time
(max)
100V a-c 15mS min (12) 20mS min 35mS typ (8)  
240V a-c 20mS min (12) 35mS min 40mS typ (8)  
Input
Current
(max) (4)
100-120V a-c 1.2A rms (13) 1.5A rms (9) 1.9A rms (10)  
200-240V a-c 0.7A rms (13) 0.75A rms (9) 1.0A rms (11)
Fuse Value   3.0A 3.0A 5.0A 250V, type 5 x 20mm
Switching
Frequency
typ 120 KHz 160 KHz 135 KHz Main Converter, Forward
typ 80 KHz PFC Converter
Initial
Turn-on
Surge (5)
100V a-c (14) (typ) 45A 14A 14A 100% load.
200V a-c (15) (typ) 90A 28A 28A

(1) Safety agency approvals are valid only for a-c input due to the fuse rating.
(2) At 440Hz the leakage current may exceed the safety specifications.
(3) UL Method. Options T, C, X, Y: 0.28 mA typ., 0.45mA max.
(4) Nominal output at rated load.
(5) First surge only, not including current flow into EMI filter.
(6) VDE Method. Options T, C, X, Y: 0.38 mA typ., 0.6mA max.
(7) 150W: 100V a-c Den-An.
(8) @100V a-c: 3.3V model: 50mS
      @240V a-c: 3.3V model: 50mS typ.
      @240V a-c: Options C, X, Y (all voltages): 55mS typ.
(9) 3.3V Model: @100 - 120V a-c: 1.1A rms max.
                            @200 - 240V a-c: 0.55A rms max.
(10) 100 - 120V a-c rms:
         3.3V model: 1.6A rms max.
         24V model: 2.7A rms typ. @240V a-c input, peak output.
(11) 200 - 240V a-c rms:
         3.3V model: 0.85A rms max.
         24V model: 1.1A rms typ. @240V a-c input, peak output.
(12) Options T, C, X and Y:
         All except 3.3V and 28V models: 30mS typ., 20mS min.
         3.3V model: 55mS typ., 40mS min.
         28V model: 35mS typ., 25mS min.
(13) Options T, C, X and Y:
         All except 3.3V model:
                  0.7A rms max (100-120V a-c input)
                  0.4A rms max (200-240V a-c input)
         3.3V model:
                  0.6A rms max (100-120V a-c input)
                  0.3A rms max (200-240V a-c input)
(14) 50W: 120V a-c.
(15) 50W: 240V a-c.

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KEPCO, INC. • 131-38 SANFORD AVENUE • FLUSHING, NY. 11355 U.S.A.
TEL (718) 461-7000 • FAX (718) 767-1102
www.kepcopower.com • email: hq@kepcopower.com