Railway Power Solutions - Flipbook - Page 2
Company Profile
TRACO Electronic AG is a Swiss company with headquarters based in Baar, Switzerland. As a leading power
supply specialist with more than 40 years experience we are dedicated to the design and manufacturing of
high quality DC/DC and AC/DC power conversion products.
TRACO markets its products worldwide under the registered trademark TRACO POWER. Our mission is to
provide our customers with optimal power supply solutions in terms of performance, quality and cost for their
individual application.
Ruggedized DC/DC Converters
For Railway and Industrial Applications
Ruggedized DC/DC converters for railway and industrial applications must withstand highest mechanical and
thermal stresses. Even our smallest converters are subject to stringent requirements on safety, design-life
and environmental operating conditions. The corresponding standards EN 50155 and EN 61373 are internationally recognized for electronic equipment on rail vehicles and are widely regarded as a proof of fitness
for extreme environments outside of the transportation sector as well. All our railway DC/DC converters come
with additional IEC/EN/UL 62368-1 approvals for a wide range of demanding applications.
EN 50155 defines the minimum input voltage requirements for DC/DC converters as follows:
Bus
Voltage
24 VDC
37.5 VDC
48 VDC
72 VDC
96 VDC
110 VDC
Continuous input
voltage range
16.8–30.0 V
26.2–47.0 V
33.6–60.0 V
50.4–90.0 V
67.2–120.0 V
77.0–137.5 V
Brownout
100 ms
14.4 V
22.5 V
28.8 V
43.2 V
57.6 V
66.0 V
Transient
1 sec
33.6 V
52.5 V
67.2 V
100.8 V
134.4 V
154.0 V
Recommended input
voltage ranges
9–36 VDC (4:1 wide) or 14–160 VDC (12:1 ultra wide)
18–75 VDC (4:1 wide) or 14–160 VDC (12:1 ultra wide)
18–75 VDC (4:1 wide) or 14–160 VDC (12:1 ultra wide)
43–160 VDC (4:1 wide) or 14–160 VDC (12:1 ultra wide)
43–160 VDC (4:1 wide) or 14–160 VDC (12:1 ultra wide)
43–160 VDC (4:1 wide) or 14–160 VDC (12:1 ultra wide)
EN 50155 sets the following additional requirements:
Galvanic isolation to protect electronic circuits
Limits on emission and susceptibility with respect to conducted and radiated electromagnetic interference
Safe operation at relative humidity levels up to 95% for 30 consecutive days
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EN 61373 certification guarantees the ability to continuosly operate under severe mechanical stresses:
Random vibration – frequency range of 5–150 Hz @ 5grms (5hrs per axis)
Shock – peak acceleration of 5g/2g/1g (duration: 50ms/20ms/20ms. )
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All TRACO POWER railway solutions offer highest reliability in harsh environments. Our 4:1 wide and 12:1 ultra
wide input voltage range DC/DC converters go beyong the requirements of the EN 50155. Continuous operation
is permitted between –40 to +85°C ambient temperature. Operation at higher ambient temperatures is possible
with favorable derating characteristics. All our PCB-mounted converters are fully encapsulated for protection
against moisture and air particles. Certification according to EN 61373 guarantees highest resistance against
mechanical shocks and vibration. For selected models, an internal class a EMI filter limits electromagnetic
interference. All railway DC/DC converters come with additional IEC/EN/UL 62368-1 safety approvals and are
qualified for fire behavior according to EN 45545-2. Our manufacturing processes are ISO 9001 certified to
ensure every single product is safe, reliable and of highest quality.
Note: All dimension drawings in mm (inch)
