FEATURED PRODUCT - SERIES RKW PROGRAMMABLE
DIN-RAIL MOUNTABLE
1500W, 600W and 300W RKW Models
The Programmable-Series RKW are industrial-grade single- FEATURES
output power supplies in the 300, 600 and 1500 watt sizes.
They provide d-c outputs from 3.3 volts to 48 volts from a-c · Output indicator, green LED.
mains 85-265V a-c with power factor correction (PFC). They · Remote on-off logic control.
are fully enclosed, fan-cooled power supplies. All models feature
overvoltage and overcurrent protection and remote error sensing · Remote error sensing.
and feature a remote on-off control, remote voltage trimming · Parallel operation for redundancy or to
and master-slave paralleling with a current balance function. increase current.
The RKW conform to EN60950 following the provisions of
the Low Voltage Directive 73/23/EEC and 93/68/EEC for the · Current share circuitry to equalize current.
CE mark. Conducted EMI is suppressed to FCC Class B, · Remote voltage programming
VCCI Class B, EN55011-B and EN55022-B. The 300 and 600 by resistance.
watt models meet the radiated noise limits of FCC Class B and
EN55022 Class B. The RKW 1500 watt models meet the · Remote voltage programming by voltage.
Class A limits for both conducted and radiated EMI, but can be · Master-slave operation.
upgraded to Class B with a noise filter, PN 245-0031. Consult
factory for details. · Power fail logic signal.
· Thermal protection.
· Overvoltage protection.
· Overcurrent protection.
RKW are CE marked per the Low Voltage · Power factor corrected, wide-range a-c input.
Directive (LVD), EN60950.
· DIN-Rail mountable. For information,
consult factory.
RKW Programmable modules can be individ-
ually installed or may be combined into
a custom power assembly for
multi-output requirements. Please
see pages 131-135 for details on
Kepco's Power Assembly Program.
AN ISO 9001 COMPANY
CompuMess Elektronik GmbH Flushing, NY 11352 USA · Tel: (718) 461-7000Unterschleissheim
KEPCO, INC. · 131-38 Sanford Avenue · · Lise-Meitner-Str.1 · 85716 · Fax: (718) 767-1102
Tel 089-321501-0 Email: hq@kepcopower.com · www.kepcopower.com/rkw.htm
· Fax 089-321501-11 · www.compumess.de · www.netzteile.de 83
RKW PROGRAMMABLE MODEL TABLE
MODEL OUTPUT ADJUSTMENT OVP OUTPUT CURRENT SHORT CIRCUIT SWITCHING NOISE EFFICIENCY (%)
RANGE SETTING (1) CURRENT LIMIT CURRENT RIPPLE TYPICAL
Amps
Volts Volts -10 to +50°C Amps(2) Amps mV p-p mV p-p(3) 100V a-c 200V a-c
300 WATT MODELS
RKW 3.3-70K 3.3 1.8-3.6 3.96-4.62 70 73.5-91 90 80 120 68 72
RKW 5-60K 5 3.5-6.0 6.0-7.0 60 63.0-78.0 82 80 120 74 78
RKW 12-27K 12 7.2-14.4 14.4-16.8 27 28.4-35.1 35 120 150 76 80
RKW 15-22K 15 10.5-18.0 18.0-21.0 22 23.1-28.6 29 120 150 77 81
RKW 24-14K 24 16.8-28.8 28.8-33.6 14 14.7-18.2 20 150 200 80 84
RKW 28-12K 28 19.6-33.6 33.6-38.4 12 12.6-15.6 17 150 200 80 84
RKW 48-7K 48 33.6-52.8 50.5-58.0 7 7.4-9.1 11 200 300 81 85
600 WATT MODELS
RKW 3.3-150K 3.3 1.8-3.6 3.96-4.62 150 156-186 180 80 120 74 78
RKW 5-120K 5 3.5-6.0 6.0-7.0 120 126-156 160 80 120 76 81
RKW 12-53K 12 7.2-14.4 14.4-16.8 53 55.6-68.9 65 150 200 80 84
RKW 15-43K 15 10.5-18.0 18.0-21.0 43 45.1-55.9 55 150 200 81 85
RKW 24-27K 24 16.8-28.8 28.8-33.6 27 28.3-35.1 35 200 300 82 86
RKW 28-23K 28 19.6-33.6 33.6-38.4 23 24.1-29.8 29 200 300 82 86
RKW 48-13K 48 33.6-52.8 52.8-60.0 13 13.7-16.9 19 300 400 84 87
1500 WATT MODELS
RKW 3.3-375K 3.3 1.8-3.6 3.96-4.62 375 390-430 430 100 200 73 77
RKW 5-300K 5 3.5-6.0 6.0-7.0 300 315-350 350 100 200 77 82
RKW 12-125K 12 7.2-14.4 14.4-16.8 125 130-140 152 150 200 80 84
RKW 15-100K 15 10.5-18.0 18.0-21.0 100 105-115 135 150 200 82 86
RKW 24-65K 24 16.8-28.8 28.8-33.6 65 68-72 80 200 300 82 86
RKW 28-55K 28 19.6-33.6 33.6-38.4 55 57.7-63.2 70 200 300 82 86
RKW 48-32K 48 33.6-52.8 52.8-60.0 32 33.6-36.8 45 300 400 84 88
(1) An overvoltage shuts down the output. Recover by resetting the RC terminals. The overvoltage setting tracks the REF voltage.
(2) The current limit is rectangular. If overcurrent persists for more than 30 seconds, the output shuts down. Reset by resetting the RC terminals.
(3) Bandwidth 100MHz. Ripple and noise will be approximately 1.5 times these values in the operating temperature range -10~0°C.
The ripple and noise values tabulated are valid when the output is derated as shown in figure 1 from 50~65°C.
PROGRAMMABLE POWER 300-1500 WATTS
The new Kepco RKW Programmable power supplies are more than high-efficiency switch-mode boxes. Beyond their
wide-range a-c (or d-c) input, beyond their power factor correction (PFC) to reduce harmonic corruption of the a-c
mains, beyond the current-share capacity that allows multi-unit paralleling, the RKW are fully programmable by
either external voltage (0-5V) or by resistance.
The output will track the programming signal
with remarkable fidelity as the traces to the right
show. Of course, the RKW have large output
capacitors so the time constant will depend upon
load and at very light loads or no load, the
discharge response will be slow.
Note particularly the linearity of the RKW
power supply's response to square and triangular
programming inputs. A 0-5V signal programs Output voltage from
Output voltage from
the output from 0 to maximum output. A 0-5.5V 0V goes to 52.8V (CH2) 52.8V goes to 0V (CH2)
programming signal will control the RKW to Rising Time = 8.50 mS Falling Time = 9.92 mS
10% over the rated nominal output.
CompuMess Elektronik GmbH Flushing, NY 11352 USA · Tel: (718)85716 Unterschleissheim
KEPCO, INC. · 131-38 Sanford Avenue · · Lise-Meitner-Str.1 · 461-7000 · Fax: (718) 767-1102
84 Tel 089-321501-0 Email: hq@kepcopower.com · www.kepcopower.com/rkw.htmwww.netzteile.de
· Fax 089-321501-11 · www.compumess.de ·
FIGURE 1
RKW PROGRAMMABLE GENERAL SPECIFICATIONS Output Power vs. Ambient Temperature
300, 600, 1500W Models
SPECIFICATION RATING/DESCRIPTION CONDITION
Temperature Operating -10 to +50°C See rating curves, 300W Models
figure 1 100%
Start up -20 to -10°C 3.3V Model
88%
Storage -30 to +75°C 80%
Humidity Operating 10 to 95% RH Wet bulb 70%
temperature <35°C 60%
Storage 10 to 95% RH No condensation
40%
Vibration 5-10Hz 10mm amplitude Sweep time 10 min. START
UP
1 hr each axis, 20%
10-200Hz 2g not operating 10%
Shock Acceleration 30g 1/2 sine pulse 3 shocks each axis, -20°C -10°C 0 40°C 50°C 60°C 65°C
56°C
duration 11 ±5 msec not operating
Withstand Input-Output a-c 3.0KV 1 min. Cutout current (1)
Voltage 600W Models
Input-Ground a-c 2.0KV 1 min. Cutout current (1) 3.3V Model
100%
Output-Ground a-c 500V 1 min. Cutout current (1) 92.5%
80%
Insulation Input-Output >100M 500V d-c (2)
70%
Resistance
Input-Ground >100M 500V d-c (2)
Output-Ground >100M 500V d-c (2)
START
Safety Standards UL1950 Certified by UL UP
CSA C22.2 No. 950-95
EN 60950 Certified by TÜV
-20°C -10°C 0 40°C 50°C 60°C 65°C
(1) Cutout current: 300 and 600W models = 100mA; 1500W models = 300mA.
(2) Normal temperature (15-35°C) and humidity (10% -85% RH).
1500W Models
100%
80%
RKW FUNCTIONS
60%
DESCRIPTION 300W 600W 1500W
Overvoltage yes yes yes START
UP
Overcurrent yes yes yes
Thermal Protection yes yes yes
-20°C -10°C 0 40°C 50°C 60°C 65°C
PFC yes yes yes
Remote On-Off yes yes yes
External Voltage Adjust yes yes yes
Remote Sense yes yes yes
Parallel Operation yes yes yes
Master-Slave Operation yes yes yes
Series Operation yes yes yes
Current Balance yes yes yes
Operation Indicator yes yes yes
Power Fail Alarm yes yes yes
Fan yes yes yes (two)
AN ISO 9001 COMPANY
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
KEPCO, INC. · 131-38 Sanford Avenue · Flushing, NY 11352 USA · Tel: (718) 461-7000 · Fax: (718) 767-1102
Tel 089-321501-0 · hq@kepcopower.com · www.kepcopower.com/rkw.htm
Email: Fax 089-321501-11 · www.compumess.de · www.netzteile.de 85
RKW PROGRAMMABLE COMMON INPUT CHARACTERISTICS
SPECIFICATIONS RATING/DESCRIPTION CONDITION
Input Voltage 85-265V a-c 0-100% load,
Range 110-370V d-c (2) -10 to +50°C
Input Frequency 47-66Hz 0-100% load,
Range -10 to +50°C
EMI Conducted Noise(1) FCC Class B, VCCI-Class B
EN55011-B, EN55022-B
Radiated Noise (1) FCC Class B, VCCI-Class B 300-600W models.
EN55011-B, EN55022-B 1500W models
require noise filter:
Model RKW 12-27K PN 245-0031
300 Watts Immunity To Electrostatic EN61000-4-2 Level 4 Normal operation
Discharge (ESD)
Radiated Susceptibility EN61000-4-3 Level 3 Normal operation
Electrical Fast Transient EN61000-4-4 Level 3 Normal operation
Surge Withstand EN61000-4-5 Level 4 No damage
Conducted Susceptibility EN61000-4-6 Level 3 Normal operation
Power Freq Mag Field EN61000-4-8 Level 4 Normal operation
Voltage Dips, EN61000-4-11 Normal operation
Short Interruptions and
Voltage Variations
Input Harmonics EN61000-3-2
(1) The 300 and 600W RKW meet radiated and conducted FCC Class B and EN55022
Class B limits. The RKW 1500W models meet radiated and conducted FCC Class A
and EN55022 Class A. The radiated and conducted emissions of the 1500W models
Model RKW 48-13K are reduced to the Class B level by the use of a noise filter, PN 245-0031. Consult factory.
(2) Safety agency approval applies only to a-c input operation.
600 Watts
RKW PROGRAMMABLE MODEL-SPECIFIC INPUT CHARACTERISTICS
SPECIFICATION CONDITION 300W 600W 1500W
Input 100-120V a-c 4.4 8.4 22
Current 200-240V a-c 2.2 4.2 11
Amps
(5V-48V models)
Input 100-120V a-c 3.6 7.2 18
Current 200-240V a-c 1.8 3.6 9
Amps
(3.3V models)
Surge 120V a-c 20 30 20
Current
240V a-c 40 60 40
Model RKW 12-125K Amps, typ (1)
1500 Watts Fuse Value 10 15 30
Amps
Switching Frequency 200KHz 140KHz 140KHz(2)
Leakage 120V a-c 0.24 0.45 0.5
Current 240V a-c 0.31 0.6 1.1
typ (mA)
Leakage 120V a-c 0.3 0.75 0.8
Current 240V a-c 0.38 0.75 1.6
max (mA)
Power 120V a-c 0.99 0.99 0.99
Factor 240V a-c 0.99 0.95 0.95
(1) First surge only, not including the current flow into the EMI filter.
AN ISO 9001 COMPANY (2) Model RKW 3-375K: 100KHz.
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
KEPCO, INC. · 131-38 Sanford Avenue · Flushing, NY 11352 USA · Tel: (718) 461-7000 · Fax: (718) 767-1102
86 Tel 089-321501-0 ·hq@kepcopower.com · www.kepcopower.com/rkw.htm
Email: Fax 089-321501-11 · www.compumess.de · www.netzteile.de
FIGURE 2
RKW PROGRAMMABLE COMMON OUTPUT CHARACTERISTICS Mounting Directions
300, 600, 1500W Models
SPECIFICATI0NS RATING/DESCRIPTION CONDITION
Source Effect typ 0.1% (1) 85-132 or
max 0.2% (1) 170-265V a-c
Load Effect typ See model specific output ratings 0-100% load
Temperature typ 0.5% -10°C to +65°C
Effect max 1.0%
Combined typ ±0.9% (2) Source, load and
Effect max ±1.8% (2) temperature
Time Effect typ 0.2% 0.5-8 hours
(drift) max 0.5% Standard Mounting
Transient Excursion ±4% maximum 50-100% load
Recovery transient time
Characteristic Recovery 1millisecond max >50µsec
Start Up 100V a-c See model specific
Time output ratings
Hold Up 100V a-c See model specific
Time output ratings
Remote 3.3V models 0.15V Voltage
Error 5V models 0.25V compensation
Sensing per line
12-48V models 0.4V
(1) 3.3V models: 600 and 1500W: 0.15% typ, 0.3% max; 300W: 5mV typ, 10mV max.
(2) 3.3V models: 600 and 1500W: ±1.1% typ, ±2.2% max.
RKW PROGRAMMABLE MODEL-SPECIFIC OUTPUT CHARACTERISTICS
The fan should be situated at intervals of 30mm min.
SPECIFICATION CONDITION 300W 600W 1500W from other equipment in a well ventilated area.
Load Effect typ 0.2% 0.3% 0.3%
max 0.4%(2) 0.6%(1) 0.6%(1)
Start Up Time 100V a-c 280 280 280
typ msec
240V a-c 150 100 180
Start Up Time 100V a-c 350 350 500
max msec
240V a-c 210 150 400
Hold Up Time 100V a-c 30 30 35
typ msec
240V a-c 40 40 40
Hold Up Time 100V a-c 20 20 20
min msec
240V a-c 20 20 20
(1) 3.3V models: 0.45% typ, 0.9% max.
(2) 3.3V models: 10mV typ, 20mV max.
RKW PROGRAMMABLE MECHANICAL SPECIFICATIONS
SPECIFICATION 300W 600W 1500W
Dimensions Height 3.62" 3.62" 3.62"
English Width 3.15" 4.72" 7.48"
Length 6.89" 7.87" 11.81"
Dimensions Height 92mm 92mm 92mm
Metric
Width 80mm 120mm 190mm
Length 175mm 200mm 300mm
Weight English 3.96 lb. 6.6 lb. 13.2 lb.
Metric 1.8Kg 3.0Kg 6.0Kg AN ISO 9001 COMPANY
Cooling 1 fan 2 fans
Mounting 3 surface (see figure 2)
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
KEPCO, INC. · 131-38 Sanford Avenue · Flushing, NY 11352 USA · Tel: (718) 461-7000 · Fax: (718) 767-1102
Tel 089-321501-0 ·hq@kepcopower.com · www.kepcopower.com/rkw.htm
Email: Fax 089-321501-11 · www.compumess.de · www.netzteile.de 87
OUTLINE DIMENSIONAL DRAWINGS
Fractional dimensions in light face type are in inches, dimensions in bold face type are in millimeters.
2.47 .27 1.38 6.9 .79
(62.7) (6.8) (35) (175) (20) 1.57 1.57
.43 (40) (40)
1.81 (11) .75 (19) MAX
.35 (9) 4.7 ±0.02
.82 (46)
(20.8) (120 ±0.5)
.72
.67 (17) 1.71
(18.23)
RKW 2.76 (43.5)
3.62 ±0.02 8-M4 Mounting Taps 3.15
300W 2.44
(62) (92) (70 (80)
±0.5) 1.90
Models (48.5)
.67 (17) .51
(12.99)
.43 (11)
.48 (12) .48 (12)
.55 (14) MAX
FRONT VIEW SIDE VIEW TOP VIEW REAR VIEW
RKW 600W Models RKW 1500W Models
.18 (4.5) 2.82 (71.7)
190 (7.48)
87 (3.43) 43.4 (1.71)
18
(.71) 48.8 (1.92)
.47 (12)
10 (.40) 27 (1.06)
2.17
(55)
61.8 (2.43)
76.5 92
.75 (3.01) (3.62)
(19) 18.1 (.71)
.49 (12.5) 1.29 (33)
36 (1.42) 78
FRONT VIEW (3.07)
FRONT VIEW
8-M4 Mounting Taps
.79 .79
(20) 6.3 ±0.02 (20)
(160 ±0.5) 7.5
(.30)
8-M4 Mounting Taps 77
77
±0.5
±0.5
.63 (3.03
(3.03
(16) ±0.02)
2.40 ±0.28 ±0.02)
(61 ±2) 3.62
(92)
300 (11.81)
7.87 (200) 40 5 (0.2) MAX
(1.57) SIDE VIEW
SIDE VIEW
40 25 37
(1.57) (.98) (1.46)
4-M4 Mounting Taps .4 238 ±0.7 (9.37 ±0.028)
(10)
.85 ±0.28 .12 10
(21.5 ±2) (3)
(.40)
4.7 4-M4 Mounting Taps
(120)
25 (.98)
3.94 170
3.27 ±0.28 ±0.02 ±0.5
(83 ±2) (100 (6.69
±0.5) 115 ±0.02)
(4.53)
1.77 3.94 ±0.02 2.17
(45) (100 ±0.5) (55) 10
(.40)
TOP VIEW 16.6 23 (.91) MAX
(.65)
TOP VIEW
2.44 2.28
(62) (58)
1.71
(43.5)
1.91
(48.5)
REAR VIEW REAR VIEW
AN ISO 9001 COMPANY
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
KEPCO, INC. · 131-38 Sanford Avenue · Flushing, NY 11352 USA · Tel: (718) 461-7000 · Fax: (718) 767-1102
88 Tel 089-321501-0 ·hq@kepcopower.com · www.kepcopower.com/rkw.htm
Email: Fax 089-321501-11 · www.compumess.de · www.netzteile.de