
GLS55, GLS55-M Installation & Operating Instructions
To comply with the published safety standards, the following must be observed when using this
power supply:
1. Maximum ambient temperature for the power supply must not exceed 50°C. The power
supply has been evaluated for use in 70°C at half load (30 W) for GLS55 only.
2. When installing the power supply in the end-use equipment, special attention is required
to ensure safety compliance with the following safety standards: UL60950-1, EN60950-1,
IEC60950-1, and CSA22.2 No. 60950-1-03 for GLS55; UL60601-1, EN60601-1,
IEC60601-1, and CSA22.2 No. 60601-1-M90 for GLS55-M. The safety requirements include
creepage distances, clearances, and distance through insulation between primary wiring and
earth or secondary (SELV) wiring.
3. This power supply is approved and certied for the rated voltage range of 100 V ac to 240 V ac.
4. The maximum output power of the supply must not exceed the rating indicated in the speci-
cation sheet.
5. The disconnection from the line must be in the end system.
6. The internal fuse should only be replaced with a T3.15AH, 250 V ac, type TE5/392 manufactured by Wickmann.
NOTE: The power supply has a fuse on the neutral line for GLS55-M.
7. GLS55-M has no patient applied part.
8. This equipment is considered Class I according to protection against electric shock.
9. This power supply is
2006/95/EC.
10. For technical assistance, contact SolaHD Technical Support at (800) 377- 4384 or send an
e-mail to tech@solahd.com. Please visit our Web site at www.solahd.com for additional
product information and specication sheets.
marked following the provisions of the Low Voltage Directive,
2.00
[50.8]
Mechanical Outline & Dimensions
Output Voltage
Adjust Pot
T2
4.00
Earth
GND
SK1
M1
~~
F1
1
3
3.73
[94.7]
[101.6]
Top View
M2
1
SK2
6
.16
[4.0]
1.72
[43.8]
Mounting Hole
.16 [4.0] 4 X
1.30
[33.0]
Output Ratings
Output Voltage (V)
+24 2.5 60
Max. Output Current (A) Max. Output Power (W)
Convection Cooling
Connector PIN Designation
Input Connector PIN Designation
SK1
Output Connector PIN Designation
SK2
GLS55/55-M are commercial designations of model numbers LPS55/55-M respectively.
©2009 EGS Electrical Group. All rights reserved. Specications subject to change without notice. P/N: A272-176 Rev 1 4/24/09 Ref: LPS55/OP
1 Line
3 Neutral
1 +24 V
2 +24 V
3 Common
4 Common
5 -Sense
6 +Sense
Side View
All dimensions are in inches [mm].
Maximum screw head diameter is .22″ [5.6 mm].
Mounting holes M1 and M2 should be grounded for EMI
purposes.
Mounting hole M1 is an earth ground connection.
CAUTION! Do not accidentally connect the ac connector
to the dc output.

GLS50, GLS50-M Series Specifications
Electrical Specifications
Input
Input ra nge 90-264 Vac (wide range); 127-300 Vdc
Frequency 47-440 Hz
Inrush current <60 A peak @ 230 Vac, cold start @ 25°C
Input power < 74 Watts
Efficiency 80 - 85% typical at full load
EMI/RFI
Safety ground
leakage current
<0.5 mA @ 50/60 Hz, 264 Vac input for class I; < 0.25 mA @ 50/60 Hz; 264 Vac input for class II
Output
Maximum power 60 W convection; (GLS52, 55 W)
Adjustment range ±20% minimum
Hold-up time 10/20 ms 115/230 Vac input line
Overload protection
Overvoltage protection 30-50% above nominal output
Remote sense Compensates for 0.5 lead V lead drop max. Will operate without remote sense. Reverse connection protected.
FCC Class B conducted; CISPR 22 Class B conducted;
EN55022 Class B conducted; VDE 0878 PT3 Class B conducted
GLS50-M: 275 uA @ 50/60 Hz; 264 Vac input
Short circuit protection on all outputs
Case overload protected @ 110-160% of normal rating
Environmental Specifications
Operating temperature
Storage temperature -40°C to 85°C
Electromagnetic
susceptibility
Humidity Operating; non-condensing 10% to 95% RH
Vibration IEC68-2-6 to the levels of IEC721-3-2
MTBF demonstrated > 550,000 hours at full load and 25°C ambient conditions
Mating Connectors
AC Input
DC Outputs
Molex 09-50-8031 (USA); 09-91-0300 (UK)
PINS: 08-52-0113
Molex 09-50-8061 (USA); 09-91-0600 (UK)
PINS: 08-52-0113
Connector Kit #70-841-006, includes all of the above
1. Specifications subject to change without notice.
2. All dimensions in inches (mm), tolerance is ±0.02” (±0.5mm).
3. Mounting holes M1 and M2 should be grounded for EMI purposes.
4. Mounting hole M1 is safety ground connection.
5. Specifications are for convection rating at factory settings at 115 Vac input, 25°C unless otherwise stated.
6. Warranty: 2 year
7. Weight: 0.41 lb/0.18 kg
0° to 50°C ambient. Derate each output 2.5% per degree from 50° to 70°C. -20°C start up.
Designed to meet EN61000-4; -2, -3, -4, -5, -6, -8, -11 Level 3
Phone: (800) 377-4384
Email: tech@solahd.com
www.solahd.com