> Description
The ATG series is a range of cost effective, medium power single output converters that
comply fully with the latest rail specifications and norms for protection and EMC.
Although simple in construction, the mounting arrangement ensures compliance with
vibration and shock requirements of EN50155.
Special features include:
• Wide choice of input and output voltages
• High efficiency
• Fully compliant with rail standards, including EN50155 & EN50121.3.2
> Input Specifications
The following input voltages versions are available as standard:
110V (66.0 - 137.5V) dc (Suffix A)
72V (43.2 - 90.0V) dc (Suffix D)
52V (31.2 - 65.0V) dc (Suffix C)
36V (21.0 - 50.4V) dc (Suffix F)
24V (16.8 - 33.6V) dc (Suffix B)
Other ranges are available to order
Parameter Detail
Input Ripple To EN50155
Input Protection Reverse polarity protection (some input version require
external fuse or circuit breaker).
Surges and transients EN50155 (direct and indirect)
Inrush Current Limited to typically 6 x nominal current (after 0.1ms)
Efficiency 90% typical
Hold up time (110Vdc input
version only)
10ms to EN50155 Class S2
> Output Specifications
Parameter Detail
Maximum Output Power
300W (except 12V output version which is rated at 240W
continuous, 300W for 5 seconds)
Output Versions
Single output only
Output Voltage
Can be specified from 12V to 110V
Setting Tolerance
±1.0% at 50% load, 15°C to 25°C
Minimum Load
Zero
Line Regulation
±0.5%
Load Regulation
±0.5%
Temperature Coefficient
<0.02% / °C
Output Ripple
<1% Pk-Pk of Output Voltage
Output Noise
<75mV Pk-Pk superimposed (up to 20MHz)
Response Time
0.5ms to within 1% (for a 10% - 100% load change)
Current limit
Operates at approximately 110% of rated output power
Thermal Protection
Shuts down PSU if safe internal temperature is exceeded.
Auto recovery.
Isolation
Input to Output 2.0kV ac (tested at 3.0kV dc)
Input to Case 1.0kV ac (tested at 1.4kV dc)
Output to Case 1.0kV ac (tested at 1.4kV dc)
300W POWERTRON
®
ATG SERIES
DC/DC CONVERTER FOR RAILWAY APPLICATIONS
www.martekpower.com
Option Detail Code
Output status Output fail relay L
Current share Droop current share
plus series diode
S
Current share Droop current share S2
>>> September 2010
100.00
CUSTOMER'S M4 EARTH STUD + EARTH LABEL
(PEM: FHS-M4-15)
SHAKEPROOF WASHER AND NUT SUPPLIE D
(FINGER TIGHT)
238.00 MAX.
95.00
60.00
130.00 MAX.
10.00 10.00110.00
M
a
d
e
i
n
U
K
MODEL No.
SERIAL No
ISSUE
CAMBRI DGE E NG L A ND
TEL NO: (01223 722000)
POWERTRON LTD.
95.00
69.00
MATERIAL:
BASE 3.0mm AL. ALLOY
COVER 1.6mm AL. ALLOY
FINISH:
ALOCROM 1200
NOTES:
TERMINAL BLOCKS: WAGO 236-501.
WEIGHT:
APPROX. 1kG
issue 01 08/06/04
6 off Ø7.0mm CUSTOMER
MOUNTING HOLES
OUTPUT
X2
+OUT
-OUT
X1
INPUT
E
0V
110V
> Environmental Details
Parameter Detail
Operating Temperature -25°C to +70°C (no derating).
Base plate is suitable for cold wall mounting and must not
exceed 85°C for full power operation.
Output power de-rating Above 70°C: 2% / °C; 100°C absolute maximum
Storage Temperature -40°C to +80°C
Cooling Convection / Conduction
Relative Humidity 95% max.
Shock & Vibration EN50155 (EN61373)
Environmental Protection IP20
> Applicable Norms
Parameter Detail
EMC EN50155 (2007), EN50121-3-2 (2006)
Other EN50155 (2007)
> Mechanical Characteristics
Parameter Detail
Construction Simple aluminium chassis
Dimensions (Length x Width x Height) 238x130x60mm
Weight <1.0kg
Connections Wago 236-501 terminal blocks and an M4 earth stud
Power D-type connectors also available.
Fixings Six ø 7mm fixing holes on base plate.
Option Detail Code
Mounting DIN rail fixing D
Connections Power D types Q1
RIA version Upon request consult
factory
SAV
www.martekpower.com
Option Detail
Extended temperature
range
-40°C to +70°C
Code
T
Glebe Farm Technical Campus Knapwell Cambridge CB23 4GG UK Tel. +44 (0) 1954 267726 Fax. + 44 (0) 1954 267626 sales@martekpower.co.uk
>>> September 2010