DC/DC Converters
Polyamp PM240 SERIES DC/DC Converter
The Polyamp PM240 Series DC/DC Converter is a versatile and compact power solution designed for industrial, railway, and telecommunications applications. Delivering up to 240W of power, it ensures reliable performance in demanding environments.
Read MoreFeatures
- 216 to 240W Industrial Grade Converter
- Optimized input voltage ranges
- Input ranges from 18 to 300Vdc
- Single outputs from 24 to 110Vdc
- Reverse input voltage protection
- Overvoltage Protection OVP
Specifications
Selection Table
Technical Illustrations
Downloads
INPUT | |
---|---|
Input Voltage | 24Vdc: 18-32Vdc 48Vdc: 38-60Vdc 110Vdc: 88-150Vdc 220Vdc: 175-300Vdc |
Input current | See Selection Table |
Reverse polarity protection | Yes |
Inrush current | Add suffix “N” to model number |
Soft start | Yes |
OUTPUT | |
---|---|
Output voltage | See Selection Table |
Voltage adjustment | -5% to +10% |
Output current | See Selection Table |
Ripple & noise | 15–30mV pk-pk typical |
Line regulatio | 0.001 |
Load regulation | 0.3%, 0%–100% load |
Temperature coefficient | 0.02% per °C |
Overcurrent protection | Yes |
Overvoltage protection | Yes |
No load power | 9W |
Transient response | <1ms for 10/90% load step to within 3% of nominal |
OPERATING | |
---|---|
Efficiency | 88%–91% |
Switching frequency | 30kHz |
Safety isolation | Input/Output/Case: 2.5kVAC |
Alarm facilities | Contacts for undervoltage, overvoltage |
Indicators | DC on LED |
Series operation | Yes |
Parallel operation | Yes |
Series diode | Provided as standard on output |
Isolation | Input / Output: 2.5kVac, 4kVdc Input / Case: 2.5kVac, 4kVdc Output / Case: 2.5kVac / 4kVdc all outputs |
ENVIRONMENTAL | |
---|---|
Operating temperature | -25°C to 55°C full load, and to +70C with derating 2.5%/C |
Storage temperature | -40°C to 85°C |
Cooling | Convection |
STANDARDS | |
---|---|
Safety standards | IEC60950, EN60950, EN/IEC61204-3 |
C-Tick | AS/NZS CISPR11 Group 1, Class A |
EMC standards | EN1000-6-1-2 EN/IEC61000-4-2 EN/IEC61000-4-3 EN/IEC61000-4-4 EN/IEC61000-4-5 EN/IEC61000-4-6 |
EMI standards | EN61000-6-3,EN61000-6-4, EN55011/EN55022 Level B |
MECHANICAL | |
---|---|
Dimensions | PM240: 88x214x160mm |
Weight | 2.5kg |
Mounting brackets | See Technical Illustrations for mounting options |
Protection | Fully encapsulated, Meets IP20 as standard |
Conformal coating | Available as option. Add suffix “I” |
Cooling | Convection cooling |
FEATURES | |
---|---|
Series Diode | Extra output with series diode, when the output is connected in parallel with other power supplies to achieve redundancy |
Over voltage protection | The output voltage is limited to 15% over nominal output voltage by an extra regulation circuit |
Voltage Alarm | Over / Under voltage alarm built in relay changes state if converter output voltage is not with 90% to 115% of nominal output. User selects NO or NC relay function. The relay is rated 30V 0.5A |
MODEL NUMBER | INPUT | OUTPUT | CURRENT | OUTPUT POWER |
---|---|---|---|---|
PM240 24/24 | 18-32V | 24V | 9A | 216W |
PM240 24/48 | 18-32V | 48V | 4.5A | 216W |
PM240 24/60 | 18-32V | 60V | 3.6A | 216W |
PM240 24/110 | 18-32V | 110V | 1.97A | 216W |
PM240 48/24 | 38-60V | 24V | 10A | 240W |
PM240 48/36 | 38-60V | 36V | 6.7A | 240W |
PM240 48/48 | 38-60V | 48V | 5A | 240W |
PM240 48/60 | 38-60V | 60V | 4A | 240W |
PM240 48/110 | 38-60V | 110V | 2.2A | 240W |
PM240 110/24 | 88-150V | 24V | 10A | 240W |
PM240 110/48 | 88-150V | 48V | 5A | 240W |
PM240 110/60 | 88-150V | 60V | 4A | 240W |
PM240 110/110 | 88-150V | 110V | 2.2A | 240W |
PM240 220/24 | 175-300V | 24V | 10A | 240W |
PM240 220/110 | 175-300V | 110V | 2.2A | 240W |


INPUT | |
---|---|
Input Voltage | 24Vdc: 18-32Vdc 48Vdc: 38-60Vdc 110Vdc: 88-150Vdc 220Vdc: 175-300Vdc |
Input current | See Selection Table |
Reverse polarity protection | Yes |
Inrush current | Add suffix “N” to model number |
Soft start | Yes |
OUTPUT | |
---|---|
Output voltage | See Selection Table |
Voltage adjustment | -5% to +10% |
Output current | See Selection Table |
Ripple & noise | 15–30mV pk-pk typical |
Line regulatio | 0.001 |
Load regulation | 0.3%, 0%–100% load |
Temperature coefficient | 0.02% per °C |
Overcurrent protection | Yes |
Overvoltage protection | Yes |
No load power | 9W |
Transient response | <1ms for 10/90% load step to within 3% of nominal |
OPERATING | |
---|---|
Efficiency | 88%–91% |
Switching frequency | 30kHz |
Safety isolation | Input/Output/Case: 2.5kVAC |
Alarm facilities | Contacts for undervoltage, overvoltage |
Indicators | DC on LED |
Series operation | Yes |
Parallel operation | Yes |
Series diode | Provided as standard on output |
Isolation | Input / Output: 2.5kVac, 4kVdc Input / Case: 2.5kVac, 4kVdc Output / Case: 2.5kVac / 4kVdc all outputs |
ENVIRONMENTAL | |
---|---|
Operating temperature | -25°C to 55°C full load, and to +70C with derating 2.5%/C |
Storage temperature | -40°C to 85°C |
Cooling | Convection |
STANDARDS | |
---|---|
Safety standards | IEC60950, EN60950, EN/IEC61204-3 |
C-Tick | AS/NZS CISPR11 Group 1, Class A |
EMC standards | EN1000-6-1-2 EN/IEC61000-4-2 EN/IEC61000-4-3 EN/IEC61000-4-4 EN/IEC61000-4-5 EN/IEC61000-4-6 |
EMI standards | EN61000-6-3,EN61000-6-4, EN55011/EN55022 Level B |
MECHANICAL | |
---|---|
Dimensions | PM240: 88x214x160mm |
Weight | 2.5kg |
Mounting brackets | See Technical Illustrations for mounting options |
Protection | Fully encapsulated, Meets IP20 as standard |
Conformal coating | Available as option. Add suffix “I” |
Cooling | Convection cooling |
FEATURES | |
---|---|
Series Diode | Extra output with series diode, when the output is connected in parallel with other power supplies to achieve redundancy |
Over voltage protection | The output voltage is limited to 15% over nominal output voltage by an extra regulation circuit |
Voltage Alarm | Over / Under voltage alarm built in relay changes state if converter output voltage is not with 90% to 115% of nominal output. User selects NO or NC relay function. The relay is rated 30V 0.5A |
MODEL NUMBER | INPUT | OUTPUT | CURRENT | OUTPUT POWER |
---|---|---|---|---|
PM240 24/24 | 18-32V | 24V | 9A | 216W |
PM240 24/48 | 18-32V | 48V | 4.5A | 216W |
PM240 24/60 | 18-32V | 60V | 3.6A | 216W |
PM240 24/110 | 18-32V | 110V | 1.97A | 216W |
PM240 48/24 | 38-60V | 24V | 10A | 240W |
PM240 48/36 | 38-60V | 36V | 6.7A | 240W |
PM240 48/48 | 38-60V | 48V | 5A | 240W |
PM240 48/60 | 38-60V | 60V | 4A | 240W |
PM240 48/110 | 38-60V | 110V | 2.2A | 240W |
PM240 110/24 | 88-150V | 24V | 10A | 240W |
PM240 110/48 | 88-150V | 48V | 5A | 240W |
PM240 110/60 | 88-150V | 60V | 4A | 240W |
PM240 110/110 | 88-150V | 110V | 2.2A | 240W |
PM240 220/24 | 175-300V | 24V | 10A | 240W |
PM240 220/110 | 175-300V | 110V | 2.2A | 240W |


Find the Right Model
Model Number | Input Voltage (Vdc) | Output Voltage (Vdc) | Output Current (A) | ||
---|---|---|---|---|---|
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PM240 24/24 | 24Vdc: 18...32Vdc | 24Vdc | 9A | |
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PM240 24/48 | 24Vdc: 18...32Vdc | 48Vdc | 4.5A | |
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PM240 24/60 | 24Vdc: 18...32Vdc | 60Vdc | 3.6A | |
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PM240 24/110 | 24Vdc: 18...32Vdc | 110Vdc | 1.97A | |
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PM240 48/24 | 48Vdc: 38...60Vdc | 24Vdc | 10A | |
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PM240 48/36 | 48Vdc: 38...60Vdc | 36Vdc | 6.7A | |
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PM240 48/48 | 48Vdc: 38...60Vdc | 48Vdc | 5A | |
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PM240 48/60 | 48Vdc: 38...60Vdc | 60Vdc | 4A | |
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PM240 48/110 | 48Vdc: 38...60Vdc | 110Vdc | 2.2A | |
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PM240 110/24 | 110Vdc: 88...150Vdc | 24Vdc | 10A | |
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PM240 110/48 | 110Vdc: 88...150Vdc | 48Vdc | 5A | |
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PM240 110/60 | 110Vdc: 88...150Vdc | 60Vdc | 4A | |
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PM240 110/110 | 110Vdc: 88...150Vdc | 110Vdc | 2.2A | |
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PM240 220/24 | 220Vdc: 175...300Vdc | 24Vdc | 10A | |
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PM240 220/110 | 220Vdc: 175...300Vdc | 110Vdc | 2.2A |
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