Galvanic Isolation: Provides electrical separation between input and output, ensuring safety and reliability.
High Efficiency: Ensures optimal performance with minimal energy loss.
Parallel Operation: Can be connected in parallel without additional control units for redundancy and power increase.
Compact Design: Features a space-saving form factor with easy access connections on the front, facilitating quick module replacement.
Fanless Design: Operates silently without the need for fan replacement, reducing maintenance efforts.
High Test Voltages: Complies with EN 50124-1 standards, making it suitable for railway applications.
Integrated Decoupling Diode: Enhances reliability in parallel configurations.
Robust Short-Circuit Protection: Limits short-circuit current to 2 x IN for 1.2 to 1.5 seconds, ensuring durability.
Relay Interface: Includes a potential-free changeover contact for operation/fault signaling.
LED Indicators: Provides clear operational status with integrated LEDs and optional digital voltmeter.

Technical Data

Input Voltage Range: -15% to +20% (±10% for 24/48 V input voltage)
Output Voltage: Module-specific, adjustable within ± 1%
Ripple: Output ripple < 1% (module-specific)
Efficiency: Ranges from 77% to 92%, depending on the model and configuration
Protection Class: IP20 according to EN 60529, Class 1 according to EN 61140
Permissible Environmental Conditions:
Storage: 1K21 / 1M11, +5 to +40 °C
Transport: 2K12 / 2M4, -45 to +70 °C
Operation: 3K22 / 3M11, +5 to +40 °C, 5-85% relative humidity, non-condensing
Installation Height: Up to 1,000 meters above sea level
Housing and Cooling:
Material: Built-in housing made of sheet steel with anodized front panel
Cooling Type: “ON” natural cooling, fanless design
High Voltage Testing:
Primary/Secondary, Signals: 5.3 kV DC
Primary/Body: 2.8 kV DC
Secondary/Body: 2.8 kV DC
Signals/Body: 2.8 kV DC

Standard Models and Configurations

The DCW-5751 series offers a range of models tailored to different input and output voltage requirements:

Note: “AN” refers to natural cooling without a fan. Specifications are subject to change.

The post DC Converters first appeared on Westek Electronics.