SERIES RAX
DIN-RAIL MOUNTABLE
The Family of RAX Models
FEATURES Kepco's RAX are general purpose, single
output, industrial grade modules in four
· "Power-OK" LED.
sizes from 50-300 watts. Enclosed
· Remote on/off: TTL compatible signal applied to the optically construction with barrier strip input/
isolated "RC" terminals; reduces surge stress on input circuit when output provides protection for mounting
used instead of switching the mains a-c. in industrial environments. RAX meet
EN60950, UL 1950 and are certified to
· Active soft-start circuit: Limits a-c turn-on surge.
the MIL STD 810D environment.
· Remote error sensing: Compensates for voltage drops up to 0.4V
per wire (0.25V in 3.3V and 5V models). RAX are rugged, single-output power modules
that can be individually installed or may be
· Remote voltage control: Provision is made for an external resistor to combined into a custom power assembly for
trim the output voltage setting. multi-output requirements. Please
· Adjustable voltage: Internal trimmer accessible through the case see pages 131-135 for details on
allows manual adjustment of the voltage setting. Kepco's Power Assembly Program.
· Overvoltage protection: Power is shut off if
output voltage is forced beyond the set limit.
AN ISO 9001 COMPANY
CompuMess Elektronik GmbHFlushing, NY 11352 USA · Tel: (718)85716 Unterschleissheim
KEPCO, INC. · 131-38 Sanford Avenue · · Lise-Meitner-Str.1 · 461-7000 · Fax: (718) 767-1102
Tel 089-321501-0 Email: hq@kepcopower.com · www.kepcopower.com/rax.htm www.netzteile.de
· Fax 089-321501-11 · www.compumess.de · 121
Model RAX 12-4.2K Model RAX 24-4.2K Model RAX 28-6.2K Model RAX 28-10K
50W 100W 175W 300W
RAX MODEL TABLE
OUTPUT VOLTAGE OVP SETTING OUTPUT CURRENT CURRENT LIMIT RIPPLE NOISE EFFICIENCY
(SPIKE)
VOLTS VOLTS AMPS AMPS mV mV PERCENT
Source Switching d-c to
Factory Adjustment Nom. Input, 50°C 60°C 71°C 25°C p-p p-p 50MHz max load
MODEL set(1) range 25°C Rectangular Fixed typ max typ max p-p max typ
50 WATT MODELS
RAX 3.3-10K 3.3 1.8~3.6 3.9~4.8 10.0 7.0 4.0 10.5~11.0 5 10 25 40 100
RAX 5-10K 5 4.0~5.5 6.0~6.9 10.0 7.0 4.0 10.5~11.0 5 10 25 40 100
RAX 12-4.2K 12 8.4~13.2 13.7~15.7 4.2 2.9 1.7 4.5~4.8 15 30 25 50 170
RAX 15-3.4K 15 12.0~16.5 17.0~19.5 3.4 2.4 1.4 3.6~3.9 15 30 25 50 200
75%
RAX 24-2.1K 24 16.8~26.4 27.0~30.5 2.1 1.5 0.8 2.3~2.5 25 40 25 60 290
RAX 28-1.8K 28 19.6~30.8 32.0~35.0 1.8 1.3 0.7 2.0~2.2 30 60 25 60 330
RAX 48-1K 48 32.6~52.8 55.0~63.0 1.0 0.7 0.4 1.1~1.3 35 90 25 60 530
100 WATT MODELS
RAX 3.3-20K 3.3 1.8~3.6 3.9~4.8 20.0 14.0 8.0 22.0~24.0 5 10 25 40 100
RAX 5-20K 5 4.0~5.5 6.0~6.9 20.0 14.0 8.0 22.0~24.0 5 10 25 40 100
RAX 12-8.3K 12 8.4~13.2 13.7~15.7 8.3 5.8 3.3 9.1~10.0 15 30 25 50 170
RAX 15-6.6K 15 12.0~16.5 17.0~19.5 6.6 4.6 2.6 7.3~8.0 15 30 25 50 200
78%
RAX 24-4.2K 24 16.8~26.4 27.0~30.5 4.2 2.9 1.7 4.7~5.1 25 40 25 60 290
RAX 28-3.5K 28 19.6~30.8 32.0~35.0 3.5 2.5 1.4 4.0~4.2 30 60 25 60 330
RAX 48-2K 48 32.6~52.8 55.0~63.0 2.0 1.4 0.8 2.3~2.5 35 90 25 60 530
175 WATT MODELS
RAX 3.3-35K 3.3 1.8~3.6 3.9~4.8 35.0 24.5 14.0 36.8~38.5 5 10 25 40 100
RAX 5-35K 5 4.0~5.5 6.0~6.9 35.0 24.5 14.0 36.8~38.5 5 10 25 40 100
RAX 12-14K 12 8.4~13.2 13.7~15.7 14.0 9.8 5.6 14.7~15.4 15 30 25 50 170
RAX 15-11K 15 12.0~16.5 17.0~19.5 11.0 7.7 4.4 11.8~12.1 15 30 25 50 200
79%
RAX 24-7.2K 24 16.8~26.4 27.0~30.5 7.2 5.0 2.9 8.0~8.3 25 40 25 60 290
RAX 28-6.2K 28 19.6~30.8 32.0~35.0 6.2 4.3 2.5 7.0~7.3 30 60 25 60 330
RAX 48-3.6K 48 32.6~52.8 55.0~63.0 3.6 2.5 1.4 4.3~4.5 35 90 25 60 530
300 WATT MODELS
RAX 5-60K 5 4.0~5.5 6.0~6.9 60.0 42.0 24.0 65.0~70.0 5 10 25 40 100
RAX 12-25K 12 8.4~13.2 13.7~15.7 25.0 17.5 10.0 28.0~30.0 15 30 25 50 170
RAX 15-20K 15 12.0~16.5 17.0~19.5 20.0 14.0 8.0 22.0~24.0 15 30 25 50 200
77%
RAX 24-12K 24 16.8~26.4 27.0~30.5 12.0 8.4 4.8 13.2~14.4 25 40 25 60 290
RAX 28-10K 28 19.6~30.8 32.0~35.0 10.0 7.5 4.3 12.0~15.0 30 60 25 60 330
RAX 48-6K 48 32.6~52.8 55.0~63.0 6.0 4.2 2.4 6.8~7.4 35 90 25 60 530
(1) Nominal input, maximum load, 25°C.
AN ISO 9001 COMPANY
CompuMess · 131-38 Sanford Avenue · Flushing, NY 11352 USA · Tel: (718) 85716 · Fax: (718) 767-1102
KEPCO, INC. Elektronik GmbH · Lise-Meitner-Str.1 · 461-7000 Unterschleissheim
122 Email: hq@kepcopower.com · www.kepcopower.com/rax.htm
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
FEATURES
RAX GENERAL SPECIFICATIONS
· Undervoltage protection in 300W models: If
SPECIFICATION RATING/DESCRIPTION CONDITION output voltage falls below 70% of nominal
Temperature 0-71°C (see model table) Operating for any reason (including overload) and
-40 to +75°C Storage stays there for more than 20 seconds,
Humidity 95% RH Non-condensing, power is shut off.
operating & storage
· Rectangular current limiting so you can
Shock 20g, 3 axes (11msec Non-operating
±5msec pulse duration 3 shocks each axis drive non-linear loads.
Vibration 5-10Hz: 10mm amplitude, Non-operating · Parallel operation: Units may be paralleled
3 axes 1 hour each axis for increased current.
10-55Hz: 2g, 3 axes
Isolation Output to case 500V d-c, 100M 25°C, 65% RH · Holding time: Output is sustained by
Withstand Input to output 3.75KV a-c for 1 minute 25°C, 65% RH
internally stored energy for 30 milliseconds
Voltage Y capacitor removed typically, 20 milliseconds minimum.
Input to case 2KV a-c for 1 minute 25°C, 65% RH · Fan cooling in 300W models: A monitor
Safety UL 1950, circuit maintains optimum temperature.
CSA 1402C,
¨
TUV EN60950 · Built-in EMI filter attenuates conducted
Type of Construction PC card, enclosed noise below the requirements of FCC,
Enclosure Aluminum Class A.
Cooling 50W, 100W, 175W Convection · Safety: All models recognized by UL 1950,
300W Built-in fan certified by CSA 1402C, approved by TÜV
Rheinland to EN60950, and are certified
to meet the MIL STD 810D environment.
RAX INPUT CHARACTERISTICS · Connections: Input and output connections
are via screw terminal barrier strip.
SPECIFICATION 50 WATT 100 WATT 175 WATT 300 WATT CONDITION
MODELS MODELS MODELS MODELS
Voltage 90-132 or 180-264V a-c; Jumper
Range 240-370V d-c (4) selectable (1)
Brownout 80/160V a-c; 115/230V a-c
Voltage 220V d-c (4)
Current Maximum
RAX are CE marked per the Low Voltage
typ 1.2/0.6A 1.8/0.9A 3.4/1.7A 4.6/2.8A load
Directive (LVD), EN60950.
max 1.6/0.8A 2.5/1.3A 4.2/2.2A 6.0/3.6A 25°C
115/230V a-c
Fuse Value 3.15A 5.0A 6.3A 10.0A
Initial Turn-on 17/34A 17/34A 17/34A 20/40A 115/230V a-c DERATING 50, 100, 175W MODELS
Surge (Convection cooled)
Frequency Nominal 50/60Hz; range 47-440Hz(2) Single phase
EMI FCC, Class A (conducted)
Soft-start Resistor and triac or thyristor
Circuit
Leakage 0.5mA UL method,
Current 115V a-c
0.75mA UL/VDE,
230V a-c
Startup Time 800msec max Std.(3)
Holdup typ 30msec Std.(3)
Time min 20msec
Circuit Type Forward converter
Switching ~150KHz Nom. input,
Frequency rated load
(1) For d-c, set selector to "230".
(2) At 440Hz the leakage current exceeds the VDE/UL safety specification limits.
(3) Std. condition = nominal input, maximum load, 25°C.
(4) Safety approval is for a-c operation only. AN ISO 9001 COMPANY
CompuMess·Elektronik Avenue · Flushing, NY 11352 USA · Tel: (718) 461-7000 · Fax: (718) 767-1102
KEPCO, INC. 131-38 Sanford GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
Email: hq@kepcopower.com · www.kepcopower.com/rax.htm 123
DIMENSIONS (HxWxD)
RAX OUTPUT CHARACTERISTICS
50W inches -- 4.3 x 1.8 x 7.5
mm -- 110 x 45 x 190 SPECIFICATION RATING/DESCRIPTION CONDITION
Source Effect typ 0.8%
100W inches -- 4.3 x 2.6 x 7.9 Minimum to
mm -- 110 x 65 x 200 max 1.5% maximum input
Load Effect typ 0.8% 10-100%
175W inches -- 4.3 x 3.9 x 8.7
max 1.5% load
mm -- 110 x 100 x 220
Temperature typ 1.0% Nominal input,
300W inches -- 4.3 x 5.1 x 8.7 Effect max 2.0% rated load, 0-50°C
mm -- 110 x 130 x 220 Combined Effect typ 2.0%
(source, load max 4.0%
& temperature)
NET WEIGHT Time Effect typ 0.1% 0.5-8.5 hr,
50W 1.80lbs, 0.8Kg (drift) max 0.5% maximum load, 25°C
100W 2.90lbs, 1.3Kg Recovery Excursion <4.0% Nominal input, 25°C;
Characteristics Recovery 1msec step load change
175W 3.96lbs, 1.8Kg
within ±1% from 50% to 100%
300W 5.50lbs, 2.5Kg of rated load
OUTLINE DIMENSIONAL DRAWINGS
Fractional dimensions in light face type are in inches, dimensions in bold face type are in millimeters.
DIMENSIONS
max. max. max.
MODEL A B C D E F G H I
50W 6.30 7.48 0.98 3.54 0.59 0.59 0.71 0.79 4.33
MODELS 160 190 25 90 15 15 18 20 110
100W 6.69 7.87 1.0 3.54 0.98 0.79 0.71 -- 4.33
MODELS 170 200 25 90 25 20 18 110
175W 7.48 8.66 0.98 3.54 2.36 0.79 0.71 -- 4.33
MODELS 190 220 25 90 60 20 18 110
300W 7.48 8.66 1.02 3.54 3.54 0.79 0.71 -- 4.33
MODELS 190 220 26 90 90 20 18 110
Tolerances: 0.028" (0.7mm) between mounting holes, 0.04" (1.0mm) other dimensions.
Mounting:
50W: 8-32 tapped holes --
(4) bottom; (3) each side; maximum screw penetration 0.28" (7.0mm).
100W, 175W, 300W: 8-32 tapped holes --
(4) bottom; (4) each side; maximum screw penetration 0.28" (7.0mm).
AN ISO 9001 COMPANY
KEPCO, INC. · 131-38 Sanford Avenue · Flushing, NY 11352 USA · Tel: (718) 461-7000 · Fax: (718) 767-1102
124
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Email: hq@kepcopower.com · www.kepcopower.com/rax.htm
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de