POWER
Data Sheet
Total Power:
50 W
Input Voltage:
72 or 110 V
# of Outputs:
Single
SPECIAL FEATURES
Small 57.9 x 36.8 x12.7 mm package
Input ranges 43 - 101 Vdc or
66 - 160 Vdc
High efficiency up to 92%
No minimum load requirement
Operating temperature range
-40 °C to +85 °C
Reinforced insulation 3000 VAC rms
Undervoltage shutdown
Remote On/Off
Metal case with isolated baseplate
Vibration and thermal shock
to EN61373
Safety meets EN60950-1 and Railway
Standard EN50155 (IEC60571) and
EN50121-3-2
EN45545-2 flammability
ERM50 Series
50 Watts
Electrical Specifications
Input
Input range
Efficiency
43 - 101 Vdc; 66 - 160 Vdc
92% @ 12 Vo
Output
Voltage tolerance
Line regulation
Load regulation
Noise/ripple
Overload protection
Short circuit protection
Switching frequency
±1.0%
±0.2%
±0.3%
24 V model: 150 mV, other models: 100 mV
150% typ of Io max, hiccup
Hiccup mode
320 KHz
SAFETY
cUL/UL 60950-1
IEC/EN 60950-1
IEC/EN 50155
CE Mark
Isolation
I/O isolation
Insulation resistance
Insulation capacitance
Reinforced insulation, 3000 Vac rms; I/Case. O/Case: 1500 Vdc
1000 Mohm
3000 pF
Environmental Specifications
Operating ambient temperature range
Storage temperature
Humidity
MTBF
-40 °C to +85 °C
-55 °C to +125 °C
5% to 95% non-condensing
472 Khrs calculated
ERM50 Series Data Sheet
Ordering Information
Input Voltage
Output
Efficiency @ Max Load
Max Power
Model Number
43 - 101 V
43 - 101 V
43 - 101 V
43 - 101 V
66 - 160 V
66 - 160 V
66 - 160 V
66 - 160 V
5 V @ 10 A
12 V @ 4.17 A
15 V @ 3.33 A
24 V @ 2.08A
5 V @ 10 A
12 V @ 4.17 A
15 V @ 3.33 A
24 V @ 2.08 A
90%
92%
92%
91%
90%
91%
92%
91%
50 W
50 W
50 W
50 W
50 W
50 W
50 W
50 W
ERM10A72
ERM04B72
ERM03C72
ERM02H72
ERM10A110
ERM04B110
ERM03C110
ERM02H110
Mechanical Dimensions
57.9 [2.28]
50.80 [2.00]
Mounting Inserts
M3x0.5 Through 4pl.
26.20 [ 1.03]
15.24 [ 0.60]
5
2
6
7
BOTTOM VIEW
4.10 [ 0.16] min
47.20 [1.86]
1.00 [0.04] DIA 6PLACES
1.50 [0.06] DIA 2PLACES
7.62 [ 0.30]
1
8
15.24 [ 0.60]
3
4
• All dimensions in mm (inches)
• Tolerance: X.X±0.5 (X.XX±0.02)
X.XX±0.25 ( X.XXX±0.01)
• Pin diameter Ø 1.0 ±0.05 (0.04±0.002)
• Pin diameter Ø 1.5 ±0.05 (0.06±0.002)
36.8 [ 1.45]
Pin Connections
Pin
1
2
3
4
5
6
7
8
Function
+Vin
Remote On/Off
-Vin
-Vout
-Sense
Trim
+Sense
+Vout
Heat-sink
Thermal pad
Converter
20.0 [0.78] Max
WORLDWIDE OFFICES
Americas
2900 S.Diablo Way
Tempe, AZ 85282
USA
+1 888 412 7832
Europe (UK)
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
+44 (0) 1384 842 211
12.7 [ 0.50]
Heatsink Option
Asia (HK)
14/F, Lu Plaza
2 Wing Yip Street
Kwun Tong, Kowloon
Hong Kong
+852 2176 3333
www.artesyn.com
For more information:
www.artesyn.com/power
For support:
productsupport.ep@artesyn.com
ERM50 DS 19May2015
While every precaution has been taken to ensure accuracy and completeness in this literature, Artesyn
Embedded Technologies assumes no responsibility, and disclaims all liability for damages resulting from use
of this information or for any errors or omissions. Artesyn Embedded Technologies, Artesyn and the Artesyn
Embedded Technologies logo are trademarks and service marks of Artesyn Technologies, Inc. All other names
and logos referred to are trade names, trademarks, or registered trademarks of their respective owners.
© 2014 All rights reserved.
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