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4 Hardware Overview
4.1 Alpha FXM UPS unit
The Alpha FXM series from Alpha Technologies are outdoor, military grade, line-
interactive Uninterruptable Power Supply units that have been selected for use within the
Siemens UPS solution. The unit offers an extended operating temperature range and is
well suited for use with ELV/LV LED type traffic controller equipment.
Each Siemens UPS solution uses one of two FXM series UPS units, depending on the
power requirements of the traffic intersection to be supported.
FXM1100 – Intersections up to 1kW
FXM2000 – Intersections up to 2kW
Key information for each type of unit is listed here. For more detailed information, please see
APPENDIX C – Hardware Datasheets or consult the FXM Series UPS Operating Manual –
667/HB/47760/000.
Parameter
Nominal Voltage
Nominal Frequency
Typical Efficiency
Typical Transfer time
Operating Temperature
Power output:
At -40° to +50° (Nominal)
At 65° (UK Worst case)
At 74° (Operating worst case)
De-rating
NOTE: Care must be taken when selecting a UPS unit if high temperatures are
expected. See section 5 for a solution sizing information and 12.5.1 for further
information on temperature de-rating.
Version
7
Last Editor
Ore Oluwatudimu
Document
UPS Solution General Handbook
Name
Copyright ã Siemens plc 2017 All Rights Reserved
Figure 4-1: Alpha FXM Series UPS Unit
FXM1100
1100W/VA
962.5W/VA
838.75W/VA
1.25% per degree above 55°C
Table 4-1: FXM Series UPS – Key Electrical Information
Page 17 of 76
TS008468
Infrastructure and Mobility, Traffic Solutions
FXM2000
230VAC
50Hz / 60Hz
>98% (normal mode)
<5ms
-40°C to +74°C
20000W/VA
1700W/VA
1520W/VA
1.0% per degree above 50°C
Status
ISSUED
Date
31/01/2017
Doc. No.
667/HB/47750/000
Sopers Lane, Poole, Dorset
BH17 7ER
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