Overview
The Polyamp PU300C24 NTC is a 300W industrial-grade DC/DC converter delivering consistent power in demanding environments. This unit features 7.7A input current handling and 12.5A output capacity, making it suitable for a wide range of industrial automation and control applications. The NTC designation indicates this is a standard convection-cooled model with no temperature derating across its operating range.
Key Features
- High Efficiency Performance: Efficiency exceeds 88%, reducing operational heat and power loss
- Wide Input Voltage Range: Accepts 10–300 V DC input, providing flexibility across diverse power sources
- Reverse Input Protection: Built-in reverse polarity protection safeguards against connection errors
- Overvoltage/Undervoltage Protection: Alarm relay triggers on over/undervoltage conditions for system monitoring
- Adjustable Output Voltage: Fine-tuning capability for precise load regulation
- Remote Sensing: Enables accurate voltage regulation at load points
- Convection Cooled Design: Can be mounted in any direction; weather-protected placement required
Technical Specifications
- Output Power: 300W maximum
- Input Current: 7.7A nominal
- Output Current: 12.5A nominal
- Input Voltage Range: 10–300 V DC
- Efficiency: 77–91% depending on configuration
- Operating Temperature: −25 to +55 °C (standard); optional −40 to +70 °C available
- Cooling Method: Convection cooled, no forced cooling required
- Protection Features: Reverse polarity, overvoltage protection (OVP), under/overvoltage alarm relay
- Mounting Flexibility: DIN TS-35 rail, 19″ cabinet (2–3U), or Euroformat compatible
- Manufacturer: Polyamp AB (Sweden)
Typical Applications
- Industrial Control: PLC and automation system power backup and regulation
- Railway Systems: Distributed power conditioning for onboard and wayside equipment
- Telecommunications: Network infrastructure and communication equipment power supply
- Heavy Industry: Factory automation, switchgear, and power systems requiring high reliability
- Marine & Military: Mission-critical power conversion in EMC-sensitive environments
- Parallel Redundancy: Multiple units can be connected in parallel for load-sharing and system redundancy
Compatibility & Replacements
Compatible With
- Industrial control systems requiring 300W power capacity
- 12V to 60V DC output systems (configurable by model variant)
- Wide input voltage bus systems (10–300V DC industrial networks)
- DIN rail and 19″ rack-mounted cabinet installations
- Parallel redundancy systems supporting up to 10 load-sharing units
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The PU300C24 is part of the Polyamp PU300 Series; alternative output voltage configurations within the series may provide functional equivalency for legacy systems.
Works With
- Industrial automation controllers (Allen-Bradley, Siemens, Omron, etc.)
- DC bus architectures common in railways and telecom infrastructure
- Load-sharing communication via alarm relay outputs
- Remote sensing voltage feedback loops for distributed systems
- Standard DIN rail and mounting accessories from industrial suppliers
