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. Key features include a wide input voltage range (18–300 V DC) and single output options from 24V to 11...
Read MoreThe 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.
Key features include a wide input voltage range (18–300 V DC) and single output options from 24V to 110V DC, with efficiency exceeding 88%. The PM240 Series offers advanced functionalities such as reverse input voltage protection, overvoltage protection (OVP), and adjustable output voltage for precise customisation. An integrated over/undervoltage alarm relay ensures safe operation and system monitoring.
Fully encapsulated to meet IP20 standards, the PM240 Series operates efficiently within a temperature range of -25°C to +70°C (with derating). Its flexible design supports wall, DIN rail, and 19” rack mounting options, providing easy integration into various setups.
The Polyamp PM240 Series is the perfect choice for efficient, dependable, and adaptable power conversion.
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Features
- 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
- Extra output with series diode
- Over/under voltage alarm with relay output
- Output voltage adjustable on front panel
- 19' Rack Mount or DIN Mount or Wall Mount
Specifications
| 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 |
Selection Table
| 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 |
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.