DC/DC Converters
Polyamp PU1000 SERIES DC/DC Converter
The Polyamp PU1000 Series DC/DC Converter is a high-performance power solution designed for industrial, railway, and telecommunications applications. Offering a power output of 800 to 1000W, it ensures reliable operation in demanding environments.
Read MoreFeatures
- 800W-1000W Industrial Grade Converter
- Optimised input voltage ranges
- Input ranges from 18 to 750Vdc
- Single outputs 24 to 110V
- Reverse input voltage protection
- Extra output with series diode
Specifications
Selection Table
Technical Illustrations
Downloads
INPUT | |
---|---|
Input voltages | 24Vdc: 18-32Vdc 48Vdc: 38-60Vdc 72Vdc: 50-90Vdc 110Vdc: 88-150Vdc 220Vdc: 175-300Vdc |
No load Input | 15W max |
OUTPUT | |
---|---|
Output voltages | See Selection Table |
Output current | See Selection Table |
Source regulation | 0.001 |
Load regulation | 0.3% (0 to 100% load) |
Transient recovery | <3ms. 10 to 90% load step to within 3% of nominal output voltage |
Output ripple | Typ 30mV (60kHz) |
Input ripple | 150:1 attenutation on Output (50-400Hz) |
Temperature coefficient | 0.02% per °C |
Output adjustment | 95%-110% with 15 Turn potentiometer |
Current limit | 105%, rectangular |
Remote sense | Yes |
Soft start | Yes |
Startup time | 1 Sec |
Holdup time | 2 - 25ms |
Design topology | Push-Pull |
Switching frequency | 30kHz |
Efficiency | 85%-92% |
PROTECTION | |
---|---|
Reverse Input Protection | Inputs 24V, 48V, 72V with Parallel Diode Inputs 110V, 220V Thyristor |
Overvoltage protection | Yes, 115% of nominal voltage |
Isolation | Input / Output: 24, 48, 72, 2kVdc Input / Output: 10, 220, 2.5kVac, 4kVdc Input / Case: 24, 48, 72, 2kVdc Input / Case: 110, 220, 2.5kVac, 4kVdc Output / Case: < 75Vdc output, 2kVdc Output / Case: > 75Vdc output, 2.5kVac, 4kVdc |
FEATURES | |
---|---|
Current Sharing | To balance load between up to 10 units working in parallel |
Series Diode | Extra output with series diode, when the output is connected in parallel with other power supplies to achieve redundancy |
Voltage Sense | External output voltage sense used when the voltage regulation at the load is critical. The sense can compensate voltage drops up to 5% of the nominal voltage |
Inrush current limit | Models with input code 110 and 220 have an active inrush curent limit. i peak < 6 x I nom |
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 |
OPTIONAL FEATURES | |
---|---|
Conformally coating | For environment with high non condensing humidity, max 98% RH |
EN IEC61000-4-5 Level 4 | Input filter to meet 4 of 61000-4-5 (+/-22Kv line to line, 4kV line to ground |
Train input | Input voltage range according to train standard EN50155 and IEC60571 |
High input voltage | Up to nom 600Vdc. Inputs from submarines, powerplants and solar bus voltage |
Mounting Options | See Technical Illustrations |
STANDARDS AND APPROVALS | |
---|---|
Safety standards | IEC60950, Low Voltage Directive |
C-Tick | AS/NZS CISPR11 Group 1, Class A |
EMC | EN IEC 61000-6-3, Emission EN IEC 61000-6-2, Immunity EN IEC 61000-4-4, 4kV EN IEC 61000-4-5 level 2 & 3 |
ENVIRONMENTAL | |
---|---|
Operating Temperature | -25C to +55C (100% load) +55C to +70C (with derating |
Temperature coefficient | 0.02%./C |
Storage temperature | -40°C to 85°C. |
Cooling | Convectional cooling. |
MECHANICAL | |
---|---|
Dimensions | 337 x 420 x 86mm |
Weight | 10kg |
Mounting | See Technical Illustrations |
MODEL NUMBER | INPUT | OUTPUT | CURRENT | OUTPUT POWER |
---|---|---|---|---|
PU1000 24/24 | 18-32V | 24V | 33.4A | 800W |
PU1000 24/28 | 18-32V | 28V | 28.6A | 800W |
PU1000 24/48 | 18-32V | 48V | 16.7A | 800W |
PU1000 24/60 | 18-32V | 60V | 13.4A | 800W |
PU1000 24/110 | 18-32V | 110V | 7.28A | 800W |
PU1000 48/24 | 38-60V | 24V | 41.7A | 1000W |
PU1000 48/48 | 38-60V | 48V | 20.9A | 1000W |
PU1000 48/60 | 38-60V | 60V | 16.7A | 1000W |
PU1000 48/85 | 38-60V | 85V | 11.8A | 1000W |
PU1000 48/110 | 38-60V | 110V | 9.09A | 1000W |
PU1000 72/24 | 50-90V | 24V | 41.7A | 1000W |
PU1000 72/48 | 50-90V | 48V | 20.9A | 1000W |
PU1000 72/60 | 50-90V | 60V | 16.7A | 1000W |
PU1000 72/85 | 50-90V | 85V | 11.8A | 1000W |
PU1000 72/110 | 50-90V | 110V | 9.09A | 1000W |
PU1000 110/24 | 88-150V | 24V | 41.7A | 1000W |
PU1000 110/28 | 88-150V | 28V | 35.7A | 1000W |
PU1000 110/48 | 88-150V | 48V | 20.9A | 1000W |
PU1000 110/60 | 88-150V | 60V | 16.7A | 1000W |
PU1000 110/85 | 88-150V | 85V | 11.8A | 1000W |
PU1000 110/110 | 88-150V | 110V | 9.09A | 1000W |
PU1000 220/24 | 175-300V | 24V | 41.7A | 1000W |
PU1000 220/28 | 175-300V | 28V | 35.7A | 1000W |
PU1000 220/48 | 175-300V | 48V | 20.9A | 1000W |
PU1000 220/60 | 175-300V | 60V | 16.7A | 1000W |
PU1000 220/85 | 175-300V | 85V | 11.8A | 1000W |
PU1000 220/110 | 175-300V | 110V | 9.09A | 1000W |


INPUT | |
---|---|
Input voltages | 24Vdc: 18-32Vdc 48Vdc: 38-60Vdc 72Vdc: 50-90Vdc 110Vdc: 88-150Vdc 220Vdc: 175-300Vdc |
No load Input | 15W max |
OUTPUT | |
---|---|
Output voltages | See Selection Table |
Output current | See Selection Table |
Source regulation | 0.001 |
Load regulation | 0.3% (0 to 100% load) |
Transient recovery | <3ms. 10 to 90% load step to within 3% of nominal output voltage |
Output ripple | Typ 30mV (60kHz) |
Input ripple | 150:1 attenutation on Output (50-400Hz) |
Temperature coefficient | 0.02% per °C |
Output adjustment | 95%-110% with 15 Turn potentiometer |
Current limit | 105%, rectangular |
Remote sense | Yes |
Soft start | Yes |
Startup time | 1 Sec |
Holdup time | 2 - 25ms |
Design topology | Push-Pull |
Switching frequency | 30kHz |
Efficiency | 85%-92% |
PROTECTION | |
---|---|
Reverse Input Protection | Inputs 24V, 48V, 72V with Parallel Diode Inputs 110V, 220V Thyristor |
Overvoltage protection | Yes, 115% of nominal voltage |
Isolation | Input / Output: 24, 48, 72, 2kVdc Input / Output: 10, 220, 2.5kVac, 4kVdc Input / Case: 24, 48, 72, 2kVdc Input / Case: 110, 220, 2.5kVac, 4kVdc Output / Case: < 75Vdc output, 2kVdc Output / Case: > 75Vdc output, 2.5kVac, 4kVdc |
FEATURES | |
---|---|
Current Sharing | To balance load between up to 10 units working in parallel |
Series Diode | Extra output with series diode, when the output is connected in parallel with other power supplies to achieve redundancy |
Voltage Sense | External output voltage sense used when the voltage regulation at the load is critical. The sense can compensate voltage drops up to 5% of the nominal voltage |
Inrush current limit | Models with input code 110 and 220 have an active inrush curent limit. i peak < 6 x I nom |
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 |
OPTIONAL FEATURES | |
---|---|
Conformally coating | For environment with high non condensing humidity, max 98% RH |
EN IEC61000-4-5 Level 4 | Input filter to meet 4 of 61000-4-5 (+/-22Kv line to line, 4kV line to ground |
Train input | Input voltage range according to train standard EN50155 and IEC60571 |
High input voltage | Up to nom 600Vdc. Inputs from submarines, powerplants and solar bus voltage |
Mounting Options | See Technical Illustrations |
STANDARDS AND APPROVALS | |
---|---|
Safety standards | IEC60950, Low Voltage Directive |
C-Tick | AS/NZS CISPR11 Group 1, Class A |
EMC | EN IEC 61000-6-3, Emission EN IEC 61000-6-2, Immunity EN IEC 61000-4-4, 4kV EN IEC 61000-4-5 level 2 & 3 |
ENVIRONMENTAL | |
---|---|
Operating Temperature | -25C to +55C (100% load) +55C to +70C (with derating |
Temperature coefficient | 0.02%./C |
Storage temperature | -40°C to 85°C. |
Cooling | Convectional cooling. |
MECHANICAL | |
---|---|
Dimensions | 337 x 420 x 86mm |
Weight | 10kg |
Mounting | See Technical Illustrations |
MODEL NUMBER | INPUT | OUTPUT | CURRENT | OUTPUT POWER |
---|---|---|---|---|
PU1000 24/24 | 18-32V | 24V | 33.4A | 800W |
PU1000 24/28 | 18-32V | 28V | 28.6A | 800W |
PU1000 24/48 | 18-32V | 48V | 16.7A | 800W |
PU1000 24/60 | 18-32V | 60V | 13.4A | 800W |
PU1000 24/110 | 18-32V | 110V | 7.28A | 800W |
PU1000 48/24 | 38-60V | 24V | 41.7A | 1000W |
PU1000 48/48 | 38-60V | 48V | 20.9A | 1000W |
PU1000 48/60 | 38-60V | 60V | 16.7A | 1000W |
PU1000 48/85 | 38-60V | 85V | 11.8A | 1000W |
PU1000 48/110 | 38-60V | 110V | 9.09A | 1000W |
PU1000 72/24 | 50-90V | 24V | 41.7A | 1000W |
PU1000 72/48 | 50-90V | 48V | 20.9A | 1000W |
PU1000 72/60 | 50-90V | 60V | 16.7A | 1000W |
PU1000 72/85 | 50-90V | 85V | 11.8A | 1000W |
PU1000 72/110 | 50-90V | 110V | 9.09A | 1000W |
PU1000 110/24 | 88-150V | 24V | 41.7A | 1000W |
PU1000 110/28 | 88-150V | 28V | 35.7A | 1000W |
PU1000 110/48 | 88-150V | 48V | 20.9A | 1000W |
PU1000 110/60 | 88-150V | 60V | 16.7A | 1000W |
PU1000 110/85 | 88-150V | 85V | 11.8A | 1000W |
PU1000 110/110 | 88-150V | 110V | 9.09A | 1000W |
PU1000 220/24 | 175-300V | 24V | 41.7A | 1000W |
PU1000 220/28 | 175-300V | 28V | 35.7A | 1000W |
PU1000 220/48 | 175-300V | 48V | 20.9A | 1000W |
PU1000 220/60 | 175-300V | 60V | 16.7A | 1000W |
PU1000 220/85 | 175-300V | 85V | 11.8A | 1000W |
PU1000 220/110 | 175-300V | 110V | 9.09A | 1000W |


Find the Right Model
Model Number | Input Voltage (Vdc) | Output Voltage (Vdc) | Output Current (A) | ||
---|---|---|---|---|---|
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PU1000 24/24 | 24Vdc: 18...32Vdc | 24Vdc | 16.7A | |
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PU1000 24/28 | 24Vdc: 18...32Vdc | 28Vdc | 14.3A | |
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PU1000 24/48 | 24Vdc: 18...32Vdc | 48Vdc | 8.4A | |
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PU1000 24/60 | 24Vdc: 18...32Vdc | 60Vdc | 6.7A | |
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PU1000 24/110 | 24Vdc: 18...32Vdc | 110Vdc | 7.28A | |
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PU1000 48/24 | 48Vdc: 38...60Vdc | 24Vdc | 20.9A | |
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PU1000 48/28 | 48Vdc: 38...60Vdc | 28Vdc | 17.9A | |
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PU1000 48/48 | 48Vdc: 38...60Vdc | 48Vdc | 10.5A | |
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PU1000 48/60 | 48Vdc: 38...60Vdc | 60Vdc | 8.4A | |
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PU1000 48/110 | 48Vdc: 38...60Vdc | 110Vdc | 9.09A | |
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PU1000 110/24 | 110/125Vdc: 88...150Vdc | 24Vdc | 20.9A | |
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PU1000 110/28 | 110/125Vdc: 88...150Vdc | 28Vdc | 17.9A | |
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PU1000 110/48 | 110/125Vdc: 88...150Vdc | 48Vdc | 10.5A | |
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PU1000 110/60 | 110/125Vdc: 88...150Vdc | 60Vdc | 8.4A | |
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PU1000 110/85 | 110/125Vdc: 88...150Vdc | 85Vdc | 11.8A | |
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PU1000 110/110 | 110/125Vdc: 88...150Vdc | 110Vdc | 9.09A | |
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PU1000 220/24 | 220Vdc: 175...300Vdc | 24Vdc | 20.9A | |
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PU1000 220/28 | 220Vdc: 175...300Vdc | 28Vdc | 17.9A | |
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PU1000 220/48 | 220Vdc: 175...300Vdc | 48Vdc | 10.5A | |
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PU1000 220/60 | 220Vdc: 175...300Vdc | 60Vdc | 8.4A | |
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PU1000 220/110 | 220Vdc: 175...300Vdc | 110Vdc | 9.09A |
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