POWERTRAN M 8737 & M 8776 150W Switchmode Power Supply
POWERTRAN M 8737 & M 8776
150W Switchmode Power Supply
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Made in Taiwan for Altronic Distributors Pty Ltd
POWERTRAN M 8737 & M 8776 150W Switchmode Power Supply
Figure 2: Dimension details.
Page 4
RET
V1
L
N
RET
V1
Output +ve
terminal
Neutral Input
(from mains)
Output -ve
terminal
Ground term.
(from mains)
Active
Input
Figure 1: Terminal connection details.
Overview:
Switchmode power supplies as compared with traditional linear transformer power supplies
are lightweight, smaller and more efficient.
This power supply is supplied in a vented steel cabinet with exposed 240V input terminals.
It MUST be installed within a secondary earthed cabinet by a suitably qualified person.
Features:
• Screw terminals for inputs and outputs
• Wide operating input voltage 90 – 264VAC, 47 – 63Hz
• Excellent output regulation from no load to full load
• High efficiency
• Overload and short circuit protection
• Inbuilt EMI filter to reduce noise radiation
• EMC approved
Applications:
• Telecommunications
• Computer peripherals / LAN & hub
• Test & industrial equipment
• Medical instruments
• Business machines
Connection Details:
Power supply connection to terminals is as described in figure 1 (page 4).
M 8737
Output Voltage Adjustment:
This has been factory set to 12V. Note the output voltage regulation is designed to be adjusted
from 11.64V to 12.36V. The adjustment trimpot (located next to the connection terminals) may
allow for higher voltage (say to 13.8V) but the unit is NOT designed to be used at this voltage.
M 8776
Output Voltage Adjustment:
This has been factory set to 24V. Note the output voltage regulation is designed to be adjusted
from 23.28V to 24.72V. The adjustment trimpot (located next to the connection terminals) may
allow for higher voltage (say to 26.4V) but the unit is NOT designed to be used at this voltage.
POWERTRAN M 8737 & M 8776 150W Switchmode Power Supply
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SPECIFICATIONS
INPUT
Input range .............................................................................. 90 ~ 264 VAC, universal
Frequency ..........................................................................................................47 ~ 63Hz
Inrush current ......................................................40A Typ. Cold start @ 25 C, 115VAC
Efficiency............................................................................65%~80% typical at full load
EMI filter ..................................................................FCC Class B conducted, CISPR 22
Class B conducted, EN55022 class B conducted
Line regulation ....................................................................................................+/- 0.5%
OUTPUT
Maximum power ................................................................150W (with 17cfm air flow)
Maximum current:..........................................................................M 8737, 12.5A @ 12V
M 8776, 6.25A @ 24V
Hold-up time ..........................................10ms at full load and 115 VAC nominal line
Overload protection ..................................................................Short circuit protection.
Ripple/Noise....................+/- 1% Max. @ full load (Optional +/- 0.5% per inquiry)
Overvoltage protection ..................Main output 20% to 40% above nominal output
SAFETY APPROVAL
UL 1950 / cUL
Optional CSA 22.2, LEVEL 3 (COMPLY WITH)
TUV EN60950
Optional UL 2601(EMI Class A) (COMPLY WITH)
EMI & EMC
FCC part 15, Class B
CISPR 22 / EN55022, Class B
VCCI, Class 2
CE, EN61000-3-2 (Class A) and-3;
EN61000-4-2, -3, -4, -5, -6 and -11
ENVIRONMENTAL
Operating temperature:......................0 to 50 C ambient; derate each output at 2.5%
per degree from 50 C to 70 C
Electromagnetic susceptibility: ........Designed to meet IEC 801 -2, -3, -4, -5, Level 3
Humidity: ........................................................Operating; non-condensing 5% to 95%
Vibration:......10 ~ 55 Hz at 1G 3 minutes period, 30 minutes along X, Y and Z axis
Storage temperature: ........................................................................................40 to 85 C
Temperature coefficient:............................................................+/- 0.05% per degree C
MTBF demonstrated: ......> 100,000 hours at full load and 25 C ambient conditions
Dimensions:..........................................................................................199L x 99W x 50H
POWERTRAN M 8737 & M 8776 150W Switchmode Power Supply
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